/* roulang page: index */
:root {
            --primary: #14332C;
            --primary-dark: #0E2420;
            --secondary: #C49A5A;
            --secondary-light: #D9B87C;
            --bg: #F6F2EA;
            --bg-alt: #E8EFEA;
            --accent: #C45B3A;
            --text: #1F2A26;
            --text-secondary: #5B6B64;
            --text-muted: #8A9892;
            --border: #E4DCCE;
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-tag: 999px;
            --shadow-card: 0 6px 18px rgba(20,51,44,0.06);
            --shadow-hover: 0 12px 28px rgba(20,51,44,0.12);
            --transition: 0.2s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "Noto Sans SC", "思源黑体", "PingFang SC", "Microsoft YaHei", sans-serif;
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

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

        /* Header */
        .site-header {
            background-color: var(--primary);
            color: #F6F2EA;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0,0,0,0.12);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .logo {
            font-size: 1.4rem;
            font-weight: 700;
            letter-spacing: 0.5px;
            white-space: nowrap;
            color: #F6F2EA;
        }

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

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

        .nav-desktop a {
            color: #F6F2EA;
            font-weight: 500;
            position: relative;
            padding: 6px 0;
            white-space: nowrap;
        }

        .nav-desktop a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--secondary);
            transform: scaleX(0);
            transform-origin: right;
            transition: transform 0.25s;
        }

        .nav-desktop a:hover::after,
        .nav-desktop a.active::after {
            transform: scaleX(1);
            transform-origin: left;
        }

        .nav-desktop a:hover,
        .nav-desktop a.active {
            color: var(--secondary-light);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            border: 2px solid transparent;
            transition: all 0.25s;
        }

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

        .btn-primary:hover {
            background-color: var(--secondary-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(196,154,90,0.35);
        }

        .btn-outline {
            background: transparent;
            border-color: #F6F2EA;
            color: #F6F2EA;
        }

        .btn-outline:hover {
            border-color: var(--secondary);
            color: var(--secondary-light);
            transform: translateY(-2px);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #F6F2EA;
            font-size: 1.8rem;
            cursor: pointer;
        }

        /* Mobile nav */
        .mobile-menu {
            display: none;
            flex-direction: column;
            background-color: var(--primary-dark);
            position: absolute;
            top: 72px;
            left: 0;
            right: 0;
            padding: 16px 24px 24px;
        }

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

        .mobile-menu a {
            color: #F6F2EA;
            padding: 12px 0;
            border-bottom: 1px solid rgba(246,242,234,0.1);
        }

        .mobile-menu a:last-child {
            border-bottom: none;
        }

        .mobile-menu .btn {
            margin-top: 16px;
        }

        /* Hero */
        .hero {
            background-color: var(--primary);
            background-image: linear-gradient(rgba(20,51,44,0.9), rgba(20,51,44,0.9)), url('/assets/images/e5d2c899a0627e36.webp');
            background-size: cover;
            background-position: center;
            color: #F6F2EA;
            padding: 100px 0 80px;
        }

        .hero-inner {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 48px;
            align-items: center;
        }

        .hero h1 {
            font-size: 2.6rem;
            line-height: 1.35;
            margin-bottom: 20px;
            font-weight: 700;
        }

        .hero p {
            font-size: 1.2rem;
            color: rgba(246,242,234,0.9);
            margin-bottom: 36px;
        }

        .hero-actions {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }

        .hero-image {
            background-color: var(--bg-alt);
            border-radius: var(--radius-card);
            min-height: 340px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 24px 48px rgba(0,0,0,0.2);
            overflow: hidden;
        }

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

        /* Version bar */
        .version-bar {
            background-color: #FFFFFF;
            padding: 18px 0;
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-card);
        }

        .version-bar-inner {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }

        .version-item {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .version-item .label {
            color: var(--text-secondary);
            font-size: 0.9rem;
        }

        .version-item .value {
            font-weight: 700;
            color: var(--primary);
            font-family: 'Courier New', monospace;
            letter-spacing: 0.5px;
        }

        .version-item .value.highlight {
            color: var(--secondary);
            font-size: 1.2rem;
        }

        /* Section common */
        .section {
            padding: 72px 0;
        }

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

        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-title h2 {
            font-size: 2rem;
            color: var(--primary);
            margin-bottom: 12px;
        }

        .section-title p {
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 auto;
        }

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

        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
        }

        .card {
            background: #FFFFFF;
            border-radius: var(--radius-card);
            padding: 32px 24px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            transition: all 0.3s;
        }

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

        .card h3 {
            font-size: 1.3rem;
            margin-bottom: 12px;
            color: var(--primary);
        }

        .card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
        }

        .card .icon {
            font-size: 2rem;
            margin-bottom: 16px;
            color: var(--secondary);
        }

        /* Timeline */
        .timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
        }

        .timeline-item {
            display: flex;
            margin-bottom: 36px;
            gap: 24px;
        }

        .timeline-version {
            min-width: 110px;
            text-align: right;
            font-weight: 700;
            color: var(--secondary);
            font-family: 'Courier New', monospace;
            font-size: 1.1rem;
        }

        .timeline-content {
            border-left: 2px solid var(--border);
            padding-left: 24px;
            padding-bottom: 8px;
            flex: 1;
        }

        .timeline-content h3 {
            color: var(--primary);
            margin-bottom: 8px;
        }

        .timeline-content .badge {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            padding: 2px 10px;
            border-radius: var(--radius-tag);
            font-size: 0.8rem;
            margin-bottom: 8px;
        }

        .timeline-content p {
            color: var(--text-secondary);
        }

        /* Steps */
        .steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }

        .step {
            background: #FFFFFF;
            border-radius: var(--radius-card);
            padding: 32px 24px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            position: relative;
        }

        .step::before {
            counter-increment: step;
            content: counter(step);
            position: absolute;
            top: 20px;
            right: 20px;
            width: 32px;
            height: 32px;
            background: var(--secondary);
            color: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-family: 'Courier New', monospace;
        }

        .step h3 {
            color: var(--primary);
            margin-bottom: 12px;
            font-size: 1.2rem;
        }

        .step p {
            color: var(--text-secondary);
            font-size: 0.95rem;
        }

        /* Compatibility */
        .compat-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }

        .compat-badge {
            background: #FFFFFF;
            border: 1px solid var(--border);
            border-radius: var(--radius-tag);
            padding: 10px 20px;
            font-weight: 500;
            color: var(--primary);
            box-shadow: var(--shadow-card);
            transition: all 0.3s;
        }

        .compat-badge:hover {
            border-color: var(--secondary);
            transform: translateY(-2px);
        }

        /* News list */
        .news-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .news-card {
            background: #FFFFFF;
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            transition: all 0.3s;
            display: flex;
            flex-direction: column;
        }

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

        .news-card img {
            height: 180px;
            width: 100%;
            object-fit: cover;
        }

        .news-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .news-body h3 {
            font-size: 1.1rem;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .news-body p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            flex: 1;
            margin-bottom: 12px;
        }

        .news-meta {
            display: flex;
            justify-content: space-between;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 12px;
        }

        .news-body .btn {
            padding: 8px 16px;
            font-size: 0.9rem;
            align-self: flex-start;
        }

        .empty-state {
            text-align: center;
            padding: 40px;
            color: var(--text-muted);
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px dashed var(--border);
        }

        /* Category entrance */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .category-card {
            background: #FFFFFF;
            border-radius: var(--radius-card);
            padding: 32px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            transition: all 0.3s;
            text-align: center;
        }

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

        .category-card h3 {
            color: var(--primary);
            margin-bottom: 8px;
            font-size: 1.2rem;
        }

        .category-card p {
            color: var(--text-secondary);
            font-size: 0.9rem;
        }

        /* Stats */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            text-align: center;
        }

        .stat-item .number {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--secondary);
            font-family: 'Courier New', monospace;
        }

        .stat-item .label {
            color: var(--text-secondary);
        }

        /* Security */
        .security-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .security-item {
            background: #FFFFFF;
            border-radius: var(--radius-card);
            padding: 24px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
        }

        .security-item h3 {
            color: var(--primary);
            margin-bottom: 8px;
        }

        .security-item p {
            color: var(--text-secondary);
            font-size: 0.9rem;
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: #FFFFFF;
            border-radius: var(--radius-card);
            margin-bottom: 16px;
            border: 1px solid var(--border);
            overflow: hidden;
        }

        .faq-question {
            padding: 20px 24px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            color: var(--primary);
            transition: color 0.3s;
        }

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

        .faq-question::after {
            content: '+';
            font-size: 1.5rem;
            line-height: 1;
        }

        .faq-item.active .faq-question::after {
            content: '-';
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }

        .faq-answer p {
            padding: 0 24px 20px;
            color: var(--text-secondary);
        }

        /* Subscribe */
        .subscribe-box {
            background: var(--primary);
            color: #F6F2EA;
            border-radius: var(--radius-card);
            padding: 48px;
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }

        .subscribe-box h2 {
            margin-bottom: 16px;
        }

        .subscribe-box p {
            margin-bottom: 28px;
            opacity: 0.9;
        }

        .subscribe-form {
            display: flex;
            gap: 16px;
            width: 100%;
            max-width: 480px;
        }

        .subscribe-form input {
            flex: 1;
            padding: 14px 18px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--border);
            font-size: 1rem;
            outline: none;
            transition: border-color 0.3s;
        }

        .subscribe-form input:focus {
            border-color: var(--secondary);
            box-shadow: 0 0 0 3px rgba(196,154,90,0.2);
        }

        /* Bottom CTA */
        .bottom-cta {
            background-color: var(--primary);
            background-image: linear-gradient(rgba(20,51,44,0.85), rgba(20,51,44,0.85)), url('/assets/images/be85e3f7d6d7daa9.webp');
            background-size: cover;
            background-position: center;
            color: #F6F2EA;
            text-align: center;
            padding: 80px 0;
        }

        .bottom-cta h2 {
            font-size: 2rem;
            margin-bottom: 16px;
        }

        .bottom-cta p {
            margin-bottom: 32px;
            opacity: 0.9;
        }

        /* Footer */
        .site-footer {
            background-color: var(--primary-dark);
            color: rgba(246,242,234,0.8);
            padding: 48px 0 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-col h4 {
            color: #F6F2EA;
            margin-bottom: 16px;
            font-size: 1.1rem;
        }

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

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

        .footer-col a {
            color: rgba(246,242,234,0.7);
        }

        .footer-col a:hover {
            color: var(--secondary-light);
        }

        .footer-bottom {
            border-top: 1px solid rgba(246,242,234,0.1);
            padding-top: 24px;
            text-align: center;
            font-size: 0.9rem;
            color: rgba(246,242,234,0.6);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .grid-4, .steps, .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .grid-3, .news-list, .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-inner {
                grid-template-columns: 1fr;
            }
            .hero-image {
                min-height: 260px;
            }
        }

        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .header-inner {
                height: 64px;
            }
            .mobile-menu {
                top: 64px;
            }
            .hero {
                padding: 72px 0 56px;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .section {
                padding: 56px 0;
            }
            .grid-3, .grid-4, .steps, .stats-grid, .news-list, .category-grid, .security-list, .footer-grid {
                grid-template-columns: 1fr;
            }
            .version-bar-inner {
                flex-direction: column;
                align-items: flex-start;
            }
            .timeline-item {
                flex-direction: column;
                gap: 8px;
            }
            .timeline-version {
                text-align: left;
            }
            .timeline-content {
                border-left: none;
                padding-left: 0;
            }
            .subscribe-form {
                flex-direction: column;
            }
        }

        @media (max-width: 520px) {
            .hero h1 {
                font-size: 1.6rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .hero-actions {
                flex-direction: column;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
        }

/* roulang page: article */
:root {
            --primary: #14332C;
            --primary-dark: #0E2420;
            --secondary: #C49A5A;
            --secondary-light: #D9B87C;
            --bg: #F6F2EA;
            --bg-alt: #E8EFEA;
            --accent: #C45B3A;
            --text: #1F2A26;
            --text-secondary: #5B6B64;
            --text-muted: #8A9892;
            --border: #E4DCCE;
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-tag: 999px;
            --shadow-card: 0 6px 18px rgba(20,51,44,0.06);
            --shadow-hover: 0 12px 28px rgba(20,51,44,0.12);
            --transition: 0.2s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "Noto Sans SC", "思源黑体", "PingFang SC", "Microsoft YaHei", sans-serif;
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--secondary);
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .site-header {
            background-color: var(--primary);
            color: #F6F2EA;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0,0,0,0.12);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .logo {
            font-size: 1.4rem;
            font-weight: 700;
            letter-spacing: 0.5px;
            white-space: nowrap;
            color: #F6F2EA;
        }
        .logo:hover {
            color: var(--secondary-light);
        }
        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .nav-desktop a {
            color: #F6F2EA;
            font-weight: 500;
            position: relative;
            padding: 6px 0;
            white-space: nowrap;
        }
        .nav-desktop a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--secondary);
            transform: scaleX(0);
            transform-origin: right;
            transition: transform 0.25s;
        }
        .nav-desktop a:hover::after,
        .nav-desktop a.active::after {
            transform: scaleX(1);
            transform-origin: left;
        }
        .nav-desktop a:hover,
        .nav-desktop a.active {
            color: var(--secondary-light);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            border: 2px solid transparent;
            transition: all 0.25s;
        }
        .btn-primary {
            background-color: var(--secondary);
            color: var(--primary);
        }
        .btn-primary:hover {
            background-color: var(--secondary-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(196,154,90,0.35);
        }
        .btn-outline {
            background: transparent;
            border-color: #F6F2EA;
            color: #F6F2EA;
        }
        .btn-outline:hover {
            border-color: var(--secondary);
            color: var(--secondary-light);
            transform: translateY(-2px);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #F6F2EA;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .mobile-menu {
            display: none;
            flex-direction: column;
            background-color: var(--primary-dark);
            position: absolute;
            top: 72px;
            left: 0;
            right: 0;
            padding: 16px 24px 24px;
            z-index: 999;
        }
        .mobile-menu.open {
            display: flex;
        }
        .mobile-menu a {
            color: #F6F2EA;
            padding: 12px 0;
            border-bottom: 1px solid rgba(246,242,234,0.1);
        }
        .mobile-menu a:last-child {
            border-bottom: none;
        }
        .mobile-menu .btn {
            margin-top: 16px;
        }

        /* Breadcrumb */
        .breadcrumb-wrapper {
            background-color: var(--bg-alt);
            padding: 18px 0;
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 0.92rem;
            color: var(--text-secondary);
            margin: 0;
            padding: 0;
            list-style: none;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .breadcrumb li + li::before {
            content: '/';
            color: var(--text-muted);
            font-size: 0.85rem;
        }
        .breadcrumb a {
            color: var(--text-secondary);
        }
        .breadcrumb a:hover {
            color: var(--secondary);
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
            max-width: 400px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        /* Article Header */
        .article-header {
            background-color: var(--bg);
            padding: 48px 0 32px;
        }
        .article-header .category-tag {
            display: inline-block;
            background-color: var(--secondary);
            color: var(--primary);
            padding: 6px 16px;
            border-radius: var(--radius-tag);
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .article-header h1 {
            font-size: 2rem;
            line-height: 1.4;
            color: var(--primary);
            margin-bottom: 20px;
            font-weight: 700;
        }
        .article-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
            color: var(--text-muted);
            font-size: 0.92rem;
        }
        .article-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .article-meta .dot {
            width: 4px;
            height: 4px;
            background-color: var(--text-muted);
            border-radius: 50%;
        }

        /* Article Cover */
        .article-cover {
            background-color: var(--bg);
            padding-bottom: 32px;
        }
        .article-cover img {
            width: 100%;
            height: 420px;
            object-fit: cover;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
        }

        /* Article Content */
        .article-main {
            padding: 48px 0 64px;
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 48px;
            align-items: start;
        }
        .article-body {
            background-color: #fff;
            border-radius: var(--radius-card);
            padding: 48px 56px;
            box-shadow: var(--shadow-card);
        }
        .article-content {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text);
        }
        .article-content h2 {
            font-size: 1.5rem;
            color: var(--primary);
            margin: 40px 0 16px;
            font-weight: 700;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--bg-alt);
        }
        .article-content h3 {
            font-size: 1.25rem;
            color: var(--primary);
            margin: 32px 0 12px;
            font-weight: 600;
        }
        .article-content p {
            margin-bottom: 20px;
        }
        .article-content ul,
        .article-content ol {
            margin: 16px 0 24px;
            padding-left: 28px;
        }
        .article-content li {
            margin-bottom: 8px;
        }
        .article-content blockquote {
            background-color: var(--bg-alt);
            border-left: 4px solid var(--secondary);
            padding: 20px 24px;
            margin: 24px 0;
            border-radius: 0 12px 12px 0;
            color: var(--text-secondary);
        }
        .article-content img {
            border-radius: 12px;
            margin: 24px 0;
        }
        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            font-size: 0.95rem;
        }
        .article-content table th,
        .article-content table td {
            padding: 12px 16px;
            border: 1px solid var(--border);
            text-align: left;
        }
        .article-content table th {
            background-color: var(--bg-alt);
            font-weight: 600;
            color: var(--primary);
        }

        /* Article Sidebar */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .sidebar-card {
            background-color: #fff;
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-card);
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            color: var(--primary);
            margin-bottom: 16px;
            font-weight: 600;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--bg-alt);
        }
        .sidebar-version-info {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .sidebar-version-info .info-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px 0;
            border-bottom: 1px dashed var(--border);
        }
        .sidebar-version-info .info-item:last-child {
            border-bottom: none;
        }
        .sidebar-version-info .label {
            color: var(--text-secondary);
            font-size: 0.9rem;
        }
        .sidebar-version-info .value {
            color: var(--primary);
            font-weight: 600;
            font-size: 0.92rem;
        }
        .sidebar-version-info .value.highlight {
            color: var(--secondary);
            font-weight: 700;
        }
        .sidebar-cta {
            text-align: center;
            padding: 28px 20px;
            background-color: var(--primary);
            color: #F6F2EA;
            border-radius: var(--radius-card);
        }
        .sidebar-cta h3 {
            color: #F6F2EA;
            font-size: 1.2rem;
            margin-bottom: 12px;
            border-bottom: none;
            padding-bottom: 0;
        }
        .sidebar-cta p {
            font-size: 0.9rem;
            color: rgba(246,242,234,0.85);
            margin-bottom: 20px;
        }

        /* Article Tags */
        .article-tags-section {
            padding: 0 0 40px;
        }
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .article-tags a {
            display: inline-block;
            padding: 6px 16px;
            background-color: var(--bg-alt);
            color: var(--text-secondary);
            border-radius: var(--radius-tag);
            font-size: 0.85rem;
            transition: all var(--transition);
            border: 1px solid var(--border);
        }
        .article-tags a:hover {
            background-color: var(--secondary);
            color: var(--primary);
            border-color: var(--secondary);
        }

        /* Article Nav */
        .article-nav-section {
            padding: 0 0 48px;
        }
        .article-nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
        }
        .article-nav a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 20px;
            background-color: #fff;
            border-radius: var(--radius-btn);
            border: 1px solid var(--border);
            color: var(--text-secondary);
            font-size: 0.95rem;
            transition: all var(--transition);
        }
        .article-nav a:hover {
            border-color: var(--secondary);
            color: var(--primary);
            box-shadow: var(--shadow-card);
        }

        /* Related Posts */
        .related-posts {
            padding: 48px 0;
            background-color: var(--bg-alt);
        }
        .related-posts .section-title {
            font-size: 1.6rem;
            color: var(--primary);
            margin-bottom: 32px;
            font-weight: 700;
            text-align: center;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background-color: #fff;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--secondary);
        }
        .related-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .related-card-body {
            padding: 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .related-card .card-tag {
            font-size: 0.78rem;
            color: var(--accent);
            font-weight: 600;
            margin-bottom: 8px;
        }
        .related-card h4 {
            font-size: 1.05rem;
            color: var(--primary);
            margin-bottom: 10px;
            font-weight: 600;
            line-height: 1.5;
        }
        .related-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 16px;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-link {
            font-size: 0.92rem;
            color: var(--secondary);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .related-card .card-link:hover {
            color: var(--primary);
        }

        /* Download CTA */
        .article-cta {
            background-color: var(--primary);
            background-image: linear-gradient(rgba(20,51,44,0.92), rgba(20,51,44,0.92)), url('/assets/images/d72c1725c9baee76.webp');
            background-size: cover;
            background-position: center;
            padding: 72px 0;
            color: #F6F2EA;
            text-align: center;
        }
        .article-cta h2 {
            font-size: 2rem;
            color: #F6F2EA;
            margin-bottom: 16px;
            font-weight: 700;
        }
        .article-cta p {
            font-size: 1.1rem;
            color: rgba(246,242,234,0.85);
            margin-bottom: 32px;
            max-width: 640px;
            margin-left: auto;
            margin-right: auto;
        }
        .article-cta .cta-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* Disclaimer */
        .article-disclaimer {
            padding: 40px 0;
            background-color: var(--bg);
        }
        .disclaimer-box {
            background-color: #fff;
            border: 1px solid var(--border);
            border-left: 4px solid var(--accent);
            border-radius: 12px;
            padding: 24px 28px;
            font-size: 0.92rem;
            color: var(--text-secondary);
        }
        .disclaimer-box strong {
            color: var(--accent);
        }

        /* Footer */
        .site-footer {
            background-color: var(--primary-dark);
            color: rgba(246,242,234,0.8);
            padding: 64px 0 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            margin-bottom: 48px;
        }
        .footer-col h4 {
            color: #F6F2EA;
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul a {
            color: rgba(246,242,234,0.75);
            font-size: 0.92rem;
            transition: color var(--transition);
        }
        .footer-col ul a:hover {
            color: var(--secondary-light);
        }
        .footer-bottom {
            border-top: 1px solid rgba(246,242,234,0.15);
            padding-top: 24px;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(246,242,234,0.6);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr;
            }
            .article-sidebar {
                flex-direction: row;
                flex-wrap: wrap;
            }
            .sidebar-card {
                flex: 1 1 300px;
            }
            .sidebar-cta {
                flex: 1 1 300px;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .article-body {
                padding: 36px 32px;
            }
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .header-inner .btn-primary {
                display: none;
            }
            .article-header h1 {
                font-size: 1.5rem;
            }
            .article-cover img {
                height: 240px;
            }
            .article-body {
                padding: 24px 20px;
            }
            .article-content {
                font-size: 0.98rem;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .article-cta h2 {
                font-size: 1.5rem;
            }
            .breadcrumb .current {
                max-width: 180px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .logo {
                font-size: 1.1rem;
            }
            .article-header {
                padding: 32px 0 20px;
            }
            .article-header h1 {
                font-size: 1.3rem;
            }
            .article-meta {
                gap: 12px;
                font-size: 0.82rem;
            }
            .article-body {
                padding: 20px 16px;
                border-radius: 12px;
            }
            .article-content h2 {
                font-size: 1.25rem;
            }
            .article-content h3 {
                font-size: 1.1rem;
            }
            .related-posts .section-title {
                font-size: 1.3rem;
            }
            .article-cta {
                padding: 48px 0;
            }
            .article-cta h2 {
                font-size: 1.3rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .article-nav {
                flex-direction: column;
                align-items: stretch;
            }
            .article-nav a {
                justify-content: center;
            }
            .article-sidebar {
                flex-direction: column;
            }
            .sidebar-card,
            .sidebar-cta {
                flex: 1 1 auto;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #14332C;
            --primary-dark: #0E2420;
            --secondary: #C49A5A;
            --secondary-light: #D9B87C;
            --bg: #F6F2EA;
            --bg-alt: #E8EFEA;
            --accent: #C45B3A;
            --text: #1F2A26;
            --text-secondary: #5B6B64;
            --text-muted: #8A9892;
            --border: #E4DCCE;
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-tag: 999px;
            --shadow-card: 0 6px 18px rgba(20,51,44,0.06);
            --shadow-hover: 0 12px 28px rgba(20,51,44,0.12);
            --transition: 0.2s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "Noto Sans SC", "思源黑体", "PingFang SC", "Microsoft YaHei", sans-serif;
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--secondary);
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .site-header {
            background-color: var(--primary);
            color: #F6F2EA;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0,0,0,0.12);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .logo {
            font-size: 1.4rem;
            font-weight: 700;
            letter-spacing: 0.5px;
            white-space: nowrap;
            color: #F6F2EA;
        }
        .logo:hover {
            color: var(--secondary-light);
        }
        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .nav-desktop a {
            color: #F6F2EA;
            font-weight: 500;
            position: relative;
            padding: 6px 0;
            white-space: nowrap;
        }
        .nav-desktop a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--secondary);
            transform: scaleX(0);
            transform-origin: right;
            transition: transform 0.25s;
        }
        .nav-desktop a:hover::after,
        .nav-desktop a.active::after {
            transform: scaleX(1);
            transform-origin: left;
        }
        .nav-desktop a:hover,
        .nav-desktop a.active {
            color: var(--secondary-light);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            border: 2px solid transparent;
            transition: all 0.25s;
        }
        .btn-primary {
            background-color: var(--secondary);
            color: var(--primary);
        }
        .btn-primary:hover {
            background-color: var(--secondary-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(196,154,90,0.35);
            color: var(--primary);
        }
        .btn-outline {
            background: transparent;
            border-color: #F6F2EA;
            color: #F6F2EA;
        }
        .btn-outline:hover {
            border-color: var(--secondary);
            color: var(--secondary-light);
            transform: translateY(-2px);
        }
        .btn-accent {
            background-color: var(--accent);
            color: #F6F2EA;
        }
        .btn-accent:hover {
            background-color: #d06b4a;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(196,91,58,0.3);
            color: #F6F2EA;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #F6F2EA;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .mobile-menu {
            display: none;
            flex-direction: column;
            background-color: var(--primary-dark);
            position: absolute;
            top: 72px;
            left: 0;
            right: 0;
            padding: 16px 24px 24px;
        }
        .mobile-menu.open {
            display: flex;
        }
        .mobile-menu a {
            color: #F6F2EA;
            padding: 12px 0;
            border-bottom: 1px solid rgba(246,242,234,0.1);
        }
        .mobile-menu a:last-child {
            border-bottom: none;
        }
        .mobile-menu .btn {
            margin-top: 16px;
        }
        .mobile-menu a.active {
            color: var(--secondary-light);
        }
        .breadcrumb-bar {
            padding: 32px 0 16px;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 16px;
        }
        .breadcrumb a {
            color: var(--text-secondary);
        }
        .breadcrumb a:hover {
            color: var(--secondary);
        }
        .breadcrumb .sep {
            color: var(--border);
        }
        .breadcrumb .current {
            color: var(--text);
            font-weight: 600;
        }
        .category-header {
            padding: 32px 0 48px;
        }
        .category-header h1 {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 16px;
            line-height: 1.4;
        }
        .category-header .subtitle {
            font-size: 1.15rem;
            color: var(--text-secondary);
            max-width: 768px;
            line-height: 1.8;
        }
        .section {
            padding: 64px 0;
        }
        .section-alt {
            background-color: var(--bg-alt);
        }
        .section-title {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
            line-height: 1.4;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 720px;
            margin-bottom: 32px;
            line-height: 1.8;
        }
        .version-card {
            background: #FFFFFF;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px 28px;
            margin-bottom: 20px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            display: flex;
            gap: 20px;
            align-items: flex-start;
        }
        .version-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--secondary);
            transform: translateY(-2px);
        }
        .version-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background-color: var(--primary);
            color: var(--secondary-light);
            font-family: "SF Mono", "Consolas", "Courier New", monospace;
            font-weight: 700;
            font-size: 1.05rem;
            padding: 8px 18px;
            border-radius: var(--radius-tag);
            white-space: nowrap;
            min-width: 100px;
            flex-shrink: 0;
        }
        .version-body {
            flex: 1;
        }
        .version-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 10px;
        }
        .version-date {
            font-family: "SF Mono", "Consolas", "Courier New", monospace;
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .version-type {
            display: inline-block;
            padding: 4px 14px;
            border-radius: var(--radius-tag);
            font-size: 0.8rem;
            font-weight: 600;
        }
        .type-feature {
            background-color: #E8EFEA;
            color: var(--primary);
        }
        .type-optimize {
            background-color: #FDF3E7;
            color: #A87C3D;
        }
        .type-security {
            background-color: #FBE9E5;
            color: var(--accent);
        }
        .type-experience {
            background-color: #EEF2F5;
            color: #4A6572;
        }
        .version-summary {
            color: var(--text-secondary);
            font-size: 0.98rem;
            line-height: 1.75;
            margin: 0;
        }
        .filter-bar {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 32px;
        }
        .filter-tag {
            display: inline-flex;
            align-items: center;
            padding: 8px 20px;
            border-radius: var(--radius-tag);
            background: #FFFFFF;
            border: 1px solid var(--border);
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all var(--transition);
        }
        .filter-tag:hover {
            border-color: var(--secondary);
            color: var(--secondary);
        }
        .filter-tag.active {
            background: var(--primary);
            color: #F6F2EA;
            border-color: var(--primary);
        }
        .feature-highlight {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .feature-highlight .text-stack h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 14px;
        }
        .feature-highlight .text-stack p {
            color: var(--text-secondary);
            line-height: 1.85;
            margin-bottom: 12px;
        }
        .feature-highlight .text-stack ul {
            padding-left: 20px;
            color: var(--text-secondary);
            line-height: 1.85;
        }
        .feature-highlight .text-stack ul li {
            margin-bottom: 6px;
        }
        .feature-image {
            background-color: var(--bg-alt);
            border-radius: var(--radius-card);
            min-height: 260px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .feature-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-card);
        }
        .timeline {
            position: relative;
            padding-left: 32px;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 10px;
            top: 6px;
            bottom: 6px;
            width: 2px;
            background: var(--border);
        }
        .timeline-year {
            position: relative;
            margin-bottom: 28px;
        }
        .timeline-year::before {
            content: '';
            position: absolute;
            left: -28px;
            top: 10px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--secondary);
            border: 3px solid var(--bg);
            box-shadow: 0 0 0 2px var(--secondary);
        }
        .timeline-year .year-label {
            display: inline-block;
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
            font-family: "SF Mono", "Consolas", "Courier New", monospace;
        }
        .timeline-entry {
            background: #FFFFFF;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 18px 22px;
            margin-bottom: 12px;
            box-shadow: var(--shadow-card);
        }
        .timeline-entry .t-version {
            font-weight: 700;
            color: var(--primary);
            font-family: "SF Mono", "Consolas", "Courier New", monospace;
            margin-right: 12px;
        }
        .timeline-entry .t-desc {
            color: var(--text-secondary);
            font-size: 0.95rem;
            display: inline;
        }
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .news-card {
            background: #FFFFFF;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            gap: 10px;
            color: var(--text);
        }
        .news-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--secondary);
            transform: translateY(-2px);
            color: var(--text);
        }
        .news-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.6;
            margin: 0;
        }
        .news-card p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
            flex: 1;
        }
        .news-card .news-meta {
            display: flex;
            gap: 16px;
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        .news-card .news-cat {
            color: var(--secondary);
            font-weight: 600;
        }
        .empty-news {
            background: #FFFFFF;
            border: 1px dashed var(--border);
            border-radius: var(--radius-card);
            padding: 40px 24px;
            text-align: center;
            color: var(--text-muted);
        }
        .subscribe-box {
            background: var(--primary);
            border-radius: var(--radius-card);
            padding: 48px 40px;
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 36px;
            align-items: center;
        }
        .subscribe-box .left h3 {
            color: #F6F2EA;
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .subscribe-box .left p {
            color: rgba(246,242,234,0.85);
            font-size: 1rem;
            margin: 0;
            line-height: 1.8;
        }
        .subscribe-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .subscribe-form input {
            flex: 1;
            min-width: 200px;
            padding: 14px 20px;
            border-radius: var(--radius-btn);
            border: 2px solid transparent;
            background: #F6F2EA;
            font-size: 1rem;
            outline: none;
            transition: all var(--transition);
        }
        .subscribe-form input:focus {
            border-color: var(--secondary);
            box-shadow: 0 0 0 3px rgba(196,154,90,0.25);
        }
        .cta-section {
            background-color: var(--primary-dark);
            background-image: linear-gradient(rgba(20,51,44,0.88), rgba(20,51,44,0.88)), url('/assets/images/d72c1725c9baee76.webp');
            background-size: cover;
            background-position: center;
            color: #F6F2EA;
            padding: 80px 0;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .cta-section p {
            color: rgba(246,242,234,0.85);
            font-size: 1.15rem;
            max-width: 640px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }
        .site-footer {
            background-color: var(--primary);
            color: #F6F2EA;
            padding: 64px 0 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            margin-bottom: 40px;
        }
        .footer-col h4 {
            color: var(--secondary-light);
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 18px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: rgba(246,242,234,0.75);
            font-size: 0.93rem;
        }
        .footer-col ul li a:hover {
            color: var(--secondary-light);
        }
        .footer-bottom {
            border-top: 1px solid rgba(246,242,234,0.1);
            padding-top: 24px;
            text-align: center;
        }
        .footer-bottom p {
            font-size: 0.85rem;
            color: rgba(246,242,234,0.55);
            margin: 0;
        }
        @media (max-width: 1024px) {
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-highlight {
                grid-template-columns: 1fr;
            }
            .subscribe-box {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .header-inner {
                height: 64px;
            }
            .mobile-menu {
                top: 64px;
            }
            .category-header h1 {
                font-size: 1.7rem;
            }
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .version-card {
                flex-direction: column;
                gap: 12px;
                padding: 20px;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .subscribe-form {
                flex-direction: column;
            }
            .filter-bar {
                gap: 8px;
            }
            .filter-tag {
                padding: 6px 14px;
                font-size: 0.82rem;
            }
            .version-badge {
                min-width: 84px;
                font-size: 0.9rem;
                padding: 6px 12px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #14332C;
            --primary-dark: #0E2420;
            --secondary: #C49A5A;
            --secondary-light: #D9B87C;
            --bg: #F6F2EA;
            --bg-alt: #E8EFEA;
            --accent: #C45B3A;
            --text: #1F2A26;
            --text-secondary: #5B6B64;
            --text-muted: #8A9892;
            --border: #E4DCCE;
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-tag: 999px;
            --shadow-card: 0 6px 18px rgba(20,51,44,0.06);
            --shadow-hover: 0 12px 28px rgba(20,51,44,0.12);
            --transition: 0.2s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "Noto Sans SC", "思源黑体", "PingFang SC", "Microsoft YaHei", sans-serif;
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--secondary);
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        /* Header */
        .site-header {
            background-color: var(--primary);
            color: #F6F2EA;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0,0,0,0.12);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .logo {
            font-size: 1.4rem;
            font-weight: 700;
            letter-spacing: 0.5px;
            white-space: nowrap;
            color: #F6F2EA;
        }
        .logo:hover {
            color: var(--secondary-light);
        }
        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .nav-desktop a {
            color: #F6F2EA;
            font-weight: 500;
            position: relative;
            padding: 6px 0;
            white-space: nowrap;
        }
        .nav-desktop a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--secondary);
            transform: scaleX(0);
            transform-origin: right;
            transition: transform 0.25s;
        }
        .nav-desktop a:hover::after,
        .nav-desktop a.active::after {
            transform: scaleX(1);
            transform-origin: left;
        }
        .nav-desktop a:hover,
        .nav-desktop a.active {
            color: var(--secondary-light);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            border: 2px solid transparent;
            transition: all 0.25s;
        }
        .btn-primary {
            background-color: var(--secondary);
            color: var(--primary);
        }
        .btn-primary:hover {
            background-color: var(--secondary-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(196,154,90,0.35);
        }
        .btn-outline {
            background: transparent;
            border-color: var(--primary);
            color: var(--primary);
        }
        .btn-outline:hover {
            border-color: var(--secondary);
            color: var(--secondary);
            transform: translateY(-2px);
        }
        .btn-outline-light {
            background: transparent;
            border-color: #F6F2EA;
            color: #F6F2EA;
        }
        .btn-outline-light:hover {
            border-color: var(--secondary);
            color: var(--secondary-light);
            transform: translateY(-2px);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #F6F2EA;
            font-size: 1.8rem;
            cursor: pointer;
        }
        /* Mobile nav */
        .mobile-menu {
            display: none;
            flex-direction: column;
            background-color: var(--primary-dark);
            position: absolute;
            top: 72px;
            left: 0;
            right: 0;
            padding: 16px 24px 24px;
            z-index: 999;
        }
        .mobile-menu.open {
            display: flex;
        }
        .mobile-menu a {
            color: #F6F2EA;
            padding: 12px 0;
            border-bottom: 1px solid rgba(246,242,234,0.1);
        }
        .mobile-menu a:last-child {
            border-bottom: none;
        }
        .mobile-menu .btn {
            margin-top: 16px;
        }
        /* Page header */
        .page-header {
            background-color: var(--bg-alt);
            padding: 48px 0;
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 12px;
        }
        .page-header h1 {
            font-size: 2.2rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--primary);
        }
        .page-header .lead {
            font-size: 1.15rem;
            color: var(--text-secondary);
            max-width: 800px;
        }
        /* Sections */
        .section {
            padding: 72px 0;
        }
        .section-alt {
            background-color: var(--bg-alt);
        }
        .section-title {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 32px;
            text-align: center;
        }
        /* Download card */
        .download-main .download-card {
            background: #fff;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 40px;
            border: 1px solid var(--border);
        }
        .download-card h2 {
            color: var(--primary);
            font-size: 1.6rem;
            margin-bottom: 24px;
        }
        .version-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 20px;
            margin-bottom: 24px;
        }
        .version-meta span {
            background: var(--bg-alt);
            color: var(--text-secondary);
            padding: 6px 14px;
            border-radius: var(--radius-tag);
            font-size: 0.9rem;
        }
        .badge-version {
            background: var(--secondary) !important;
            color: var(--primary) !important;
            font-weight: 700;
        }
        .security-info h3 {
            font-size: 1.2rem;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .security-info ul {
            list-style: none;
            padding: 0;
        }
        .security-info li {
            padding: 6px 0;
            color: var(--text-secondary);
            position: relative;
            padding-left: 24px;
        }
        .security-info li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--secondary);
            font-weight: 700;
        }
        .download-actions {
            margin-top: 28px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }
        .qr-box {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            padding: 16px;
            display: inline-block;
            box-shadow: var(--shadow-card);
        }
        .qr-box img {
            width: 180px;
            height: 180px;
            object-fit: cover;
            border-radius: 8px;
        }
        .qr-box p {
            margin-top: 8px;
            margin-bottom: 0;
            color: var(--text-muted);
            font-size: 0.85rem;
        }
        /* Steps */
        .steps-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 24px;
        }
        .step-item {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 28px 20px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            text-align: center;
        }
        .step-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: var(--secondary);
        }
        .step-number {
            font-size: 2rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 12px;
            font-family: monospace;
        }
        .step-item h3 {
            font-size: 1.1rem;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .step-item p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            margin-bottom: 0;
        }
        /* Adapt cards */
        .adapt-card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            padding: 28px;
            height: 100%;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
        }
        .adapt-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .adapt-card h3 {
            color: var(--primary);
            font-size: 1.2rem;
            margin-bottom: 12px;
        }
        .adapt-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
        }
        .badge-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 16px;
        }
        .badge-tag {
            background: var(--bg-alt);
            color: var(--text-secondary);
            padding: 4px 12px;
            border-radius: var(--radius-tag);
            font-size: 0.85rem;
            border: 1px solid var(--border);
        }
        /* Check list */
        .check-list {
            list-style: none;
            padding: 0;
        }
        .check-list li {
            padding: 8px 0 8px 28px;
            position: relative;
            color: var(--text-secondary);
        }
        .check-list li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--accent);
            font-weight: 700;
        }
        .image-placeholder {
            background-color: var(--bg-alt);
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--border);
        }
        .image-placeholder img {
            width: 100%;
            height: 260px;
            object-fit: cover;
        }
        /* Notice grid */
        .notice-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .notice-item {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            padding: 24px;
            box-shadow: var(--shadow-card);
        }
        .notice-item h3 {
            color: var(--primary);
            font-size: 1.1rem;
            margin-bottom: 10px;
        }
        .notice-item p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            margin-bottom: 0;
        }
        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            margin-bottom: 16px;
            box-shadow: var(--shadow-card);
            overflow: hidden;
        }
        .faq-question {
            width: 100%;
            text-align: left;
            background: none;
            border: none;
            padding: 18px 24px;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--primary);
            cursor: pointer;
            position: relative;
            transition: color var(--transition);
        }
        .faq-question::after {
            content: '+';
            position: absolute;
            right: 24px;
            top: 50%;
            transform: translateY(-50%);
            font-size: 1.5rem;
            color: var(--secondary);
        }
        .faq-item.open .faq-question::after {
            content: '−';
        }
        .faq-answer {
            display: none;
            padding: 0 24px 18px;
            color: var(--text-secondary);
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        /* CTA */
        .cta-section {
            background-color: var(--primary);
            background-image: linear-gradient(rgba(20,51,44,0.92), rgba(20,51,44,0.92)), url('/assets/images/d72c1725c9baee76.webp');
            background-size: cover;
            background-position: center;
            color: #F6F2EA;
            text-align: center;
            padding: 72px 0;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .cta-section p {
            color: rgba(246,242,234,0.85);
            margin-bottom: 32px;
            font-size: 1.1rem;
        }
        /* Footer */
        .site-footer {
            background-color: var(--primary-dark);
            color: #F6F2EA;
            padding: 56px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            margin-bottom: 40px;
        }
        .footer-col h4 {
            color: var(--secondary-light);
            font-size: 1.1rem;
            margin-bottom: 16px;
            font-weight: 600;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
        }
        .footer-col li {
            margin-bottom: 10px;
        }
        .footer-col a {
            color: rgba(246,242,234,0.75);
            transition: color var(--transition);
        }
        .footer-col a:hover {
            color: var(--secondary);
        }
        .footer-bottom {
            border-top: 1px solid rgba(246,242,234,0.1);
            padding-top: 20px;
            text-align: center;
            color: rgba(246,242,234,0.6);
            font-size: 0.9rem;
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .steps-row {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                height: 64px;
            }
            .nav-desktop {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .mobile-menu {
                top: 64px;
            }
            .page-header h1 {
                font-size: 1.8rem;
            }
            .section {
                padding: 48px 0;
            }
            .steps-row {
                grid-template-columns: 1fr;
            }
            .notice-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .download-main .download-card {
                padding: 24px;
            }
            .version-meta {
                flex-direction: column;
                gap: 8px;
            }
            .download-actions {
                flex-direction: column;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .logo {
                font-size: 1.1rem;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #14332C;
            --primary-dark: #0E2420;
            --secondary: #C49A5A;
            --secondary-light: #D9B87C;
            --bg: #F6F2EA;
            --bg-alt: #E8EFEA;
            --accent: #C45B3A;
            --text: #1F2A26;
            --text-secondary: #5B6B64;
            --text-muted: #8A9892;
            --border: #E4DCCE;
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-tag: 999px;
            --shadow-card: 0 6px 18px rgba(20,51,44,0.06);
            --shadow-hover: 0 12px 28px rgba(20,51,44,0.12);
            --transition: 0.2s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "Noto Sans SC", "思源黑体", "PingFang SC", "Microsoft YaHei", sans-serif;
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            margin: 0;
            padding: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--secondary);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid rgba(196,154,90,0.6);
            outline-offset: 2px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        /* Header */
        .site-header {
            background-color: var(--primary);
            color: #F6F2EA;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0,0,0,0.12);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .logo {
            font-size: 1.4rem;
            font-weight: 700;
            letter-spacing: 0.5px;
            white-space: nowrap;
            color: #F6F2EA;
        }
        .logo:hover {
            color: var(--secondary-light);
        }
        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .nav-desktop a {
            color: #F6F2EA;
            font-weight: 500;
            position: relative;
            padding: 6px 0;
            white-space: nowrap;
        }
        .nav-desktop a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--secondary);
            transform: scaleX(0);
            transform-origin: right;
            transition: transform 0.25s;
        }
        .nav-desktop a:hover::after,
        .nav-desktop a.active::after {
            transform: scaleX(1);
            transform-origin: left;
        }
        .nav-desktop a:hover,
        .nav-desktop a.active {
            color: var(--secondary-light);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            border: 2px solid transparent;
            transition: all 0.25s;
            text-align: center;
        }
        .btn-primary {
            background-color: var(--secondary);
            color: var(--primary);
        }
        .btn-primary:hover {
            background-color: var(--secondary-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(196,154,90,0.35);
            color: var(--primary);
        }
        .btn-outline {
            background: transparent;
            border-color: #F6F2EA;
            color: #F6F2EA;
        }
        .btn-outline:hover {
            border-color: var(--secondary);
            color: var(--secondary-light);
            transform: translateY(-2px);
        }
        .btn-accent {
            background-color: var(--accent);
            color: #FFFFFF;
        }
        .btn-accent:hover {
            background-color: #B34E30;
            color: #FFFFFF;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(196,91,58,0.3);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #F6F2EA;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0;
        }
        .mobile-menu {
            display: none;
            flex-direction: column;
            background-color: var(--primary-dark);
            position: absolute;
            top: 72px;
            left: 0;
            right: 0;
            padding: 16px 24px 24px;
        }
        .mobile-menu.open {
            display: flex;
        }
        .mobile-menu a {
            color: #F6F2EA;
            padding: 12px 0;
            border-bottom: 1px solid rgba(246,242,234,0.1);
        }
        .mobile-menu a:last-child {
            border-bottom: none;
        }
        .mobile-menu .btn {
            margin-top: 16px;
        }
        /* Breadcrumb */
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.95rem;
            color: rgba(246,242,234,0.7);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }
        .breadcrumb-nav a {
            color: var(--secondary-light);
        }
        .breadcrumb-nav a:hover {
            color: var(--secondary);
        }
        .breadcrumb-nav .sep {
            color: rgba(246,242,234,0.4);
        }
        .breadcrumb-nav .current {
            color: rgba(246,242,234,0.9);
        }
        /* Category Hero */
        .category-hero {
            background-color: var(--primary);
            background-image: linear-gradient(rgba(20,51,44,0.94), rgba(20,51,44,0.94)), url('/assets/images/be85e3f7d6d7daa9.webp');
            background-size: cover;
            background-position: center;
            color: #F6F2EA;
            padding: 56px 0 48px;
        }
        .category-hero h1 {
            font-size: 2rem;
            line-height: 1.4;
            margin-bottom: 16px;
            font-weight: 700;
        }
        .category-hero .hero-desc {
            font-size: 1.05rem;
            color: rgba(246,242,234,0.88);
            max-width: 800px;
            margin-bottom: 0;
        }
        /* Section base */
        section {
            padding: 64px 0;
        }
        .section-alt {
            background-color: var(--bg-alt);
        }
        .section-title {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
            line-height: 1.4;
        }
        .section-sub {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 700px;
            margin-bottom: 40px;
        }
        .section-header {
            margin-bottom: 32px;
        }
        /* Feature cards */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .feature-card {
            background-color: #FFFFFF;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all var(--transition);
        }
        .feature-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--secondary);
            transform: translateY(-3px);
        }
        .feature-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .feature-card-body {
            padding: 20px 22px 24px;
        }
        .feature-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background-color: var(--bg-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 14px;
        }
        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .feature-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
            margin-bottom: 0;
        }
        /* Steps */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .step-item {
            background-color: #FFFFFF;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border);
            padding: 24px 20px;
            position: relative;
            transition: all var(--transition);
        }
        .step-item:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--secondary);
        }
        .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: var(--secondary);
            color: var(--primary);
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 14px;
        }
        .step-item h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .step-item p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.7;
            margin-bottom: 0;
        }
        /* Tag cloud */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .tag-item {
            display: inline-flex;
            align-items: center;
            padding: 10px 20px;
            border-radius: var(--radius-tag);
            background-color: #FFFFFF;
            border: 1px solid var(--border);
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition);
            cursor: default;
        }
        .tag-item:hover {
            border-color: var(--secondary);
            color: var(--primary);
            background-color: #FDFBF7;
        }
        .tag-item.accent {
            background-color: var(--accent);
            color: #FFFFFF;
            border-color: var(--accent);
        }
        .tag-item.accent:hover {
            background-color: #B34E30;
            border-color: #B34E30;
            color: #FFFFFF;
        }
        /* Data strip */
        .data-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .data-item {
            text-align: center;
            padding: 20px 16px;
            background-color: #FFFFFF;
            border-radius: 14px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border);
        }
        .data-number {
            font-size: 2rem;
            font-weight: 700;
            color: var(--secondary);
            font-family: "Courier New", monospace;
            line-height: 1.3;
        }
        .data-label {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin-top: 4px;
        }
        /* Related articles */
        .rel-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .rel-card {
            background-color: #FFFFFF;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border);
            padding: 22px 24px;
            display: block;
            transition: all var(--transition);
        }
        .rel-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--secondary);
            transform: translateY(-2px);
            color: inherit;
        }
        .rel-cat {
            display: inline-block;
            padding: 4px 14px;
            border-radius: var(--radius-tag);
            background-color: var(--bg-alt);
            color: var(--primary);
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 10px;
        }
        .rel-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
            line-height: 1.5;
        }
        .rel-card p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.7;
            margin-bottom: 10px;
        }
        .rel-time {
            color: var(--text-muted);
            font-size: 0.85rem;
        }
        .empty-tip {
            color: var(--text-muted);
            font-size: 1rem;
            text-align: center;
            padding: 32px;
        }
        /* CTA section */
        .cta-section {
            background-color: var(--primary);
            background-image: linear-gradient(rgba(20,51,44,0.92), rgba(20,51,44,0.92)), url('/assets/images/e74238ea3c7d1b1f.webp');
            background-size: cover;
            background-position: center;
            color: #F6F2EA;
            padding: 72px 0;
        }
        .cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }
        .cta-inner h2 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .cta-inner p {
            color: rgba(246,242,234,0.85);
            margin-bottom: 0;
            max-width: 500px;
        }
        /* Help center */
        .help-card {
            background-color: #FFFFFF;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border);
            padding: 28px 30px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
        }
        .help-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 6px;
        }
        .help-card p {
            color: var(--text-secondary);
            margin-bottom: 0;
            max-width: 600px;
        }
        /* Footer */
        .site-footer {
            background-color: var(--primary-dark);
            color: #F6F2EA;
            padding: 48px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-col h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--secondary-light);
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col li {
            margin-bottom: 10px;
        }
        .footer-col a {
            color: rgba(246,242,234,0.75);
            font-size: 0.9rem;
            transition: color var(--transition);
        }
        .footer-col a:hover {
            color: var(--secondary-light);
        }
        .footer-bottom {
            border-top: 1px solid rgba(246,242,234,0.1);
            padding-top: 20px;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(246,242,234,0.6);
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .data-strip {
                grid-template-columns: repeat(2, 1fr);
            }
            .rel-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .header-inner .btn {
                display: none;
            }
            .category-hero {
                padding: 40px 0 36px;
            }
            .category-hero h1 {
                font-size: 1.5rem;
            }
            .category-hero .hero-desc {
                font-size: 0.95rem;
            }
            section {
                padding: 40px 0;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .data-strip {
                grid-template-columns: repeat(2, 1fr);
            }
            .cta-inner {
                flex-direction: column;
                align-items: flex-start;
            }
            .help-card {
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 520px) {
            .hero-actions {
                flex-direction: column;
            }
            .data-strip {
                grid-template-columns: 1fr;
            }
            .container {
                padding: 0 16px;
            }
            .logo {
                font-size: 1.1rem;
            }
        }