/* roulang page: index */
:root {
            --color-bg-dark: #0B0D10;
            --color-bg-deep: #15181E;
            --color-surface: #1A1E26;
            --color-surface-light: #242A35;
            --color-border: rgba(255, 255, 255, 0.08);
            --color-border-hover: rgba(124, 58, 237, 0.55);
            --color-accent: #7C3AED;
            --color-accent-bright: #A78BFA;
            --color-accent-glow: rgba(124, 58, 237, 0.35);
            --color-accent-green: #00E5A0;
            --color-accent-gold: #D4AF37;
            --color-text-primary: #F5F7FA;
            --color-text-secondary: #C0C4CC;
            --color-text-muted: #8E96A3;
            --color-text-on-accent: #FFFFFF;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.25);
            --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.4);
            --space-section: 80px;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Inter', 'Roboto', system-ui, -apple-system, sans-serif;
        }

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

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

        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg-dark);
            color: var(--color-text-primary);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

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

        button,
        input {
            font-family: inherit;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: rgba(11, 13, 16, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border);
            transition: background-color var(--transition-base);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            gap: 16px;
        }

        .nav-group {
            display: flex;
            align-items: center;
            gap: 20px;
            flex: 1;
        }

        .nav-group-left {
            justify-content: flex-start;
        }

        .nav-group-right {
            justify-content: flex-end;
        }

        .nav-logo {
            font-size: 1.5rem;
            font-weight: 800;
            letter-spacing: 0.02em;
            white-space: nowrap;
            color: var(--color-text-primary);
            transition: color var(--transition-base);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-logo .logo-icon {
            width: 34px;
            height: 34px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--color-accent), #5B21B6);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            color: #fff;
            flex-shrink: 0;
        }

        .nav-link {
            color: var(--color-text-secondary);
            font-size: 0.95rem;
            font-weight: 500;
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            white-space: nowrap;
            position: relative;
            transition: color var(--transition-base), background-color var(--transition-base);
        }

        .nav-link::after {
            content: '';
            position: absolute;
            left: 12px;
            right: 12px;
            bottom: 4px;
            height: 1px;
            background-color: var(--color-accent);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition-base);
        }

        .nav-link:hover {
            color: var(--color-text-primary);
            background-color: rgba(255, 255, 255, 0.04);
        }

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

        .nav-link.active {
            color: var(--color-accent-bright);
            background-color: rgba(124, 58, 237, 0.12);
        }

        .nav-cta {
            background-color: var(--color-accent);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            padding: 8px 16px;
            border-radius: 9999px;
            transition: background-color var(--transition-base), transform var(--transition-base);
        }

        .nav-cta:hover {
            background-color: #6D28D9;
            transform: translateY(-1px);
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--color-border);
            color: var(--color-text-primary);
            font-size: 1.3rem;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: border-color var(--transition-base), background-color var(--transition-base);
            align-items: center;
            justify-content: center;
        }

        .nav-toggle:hover {
            border-color: var(--color-border-hover);
            background-color: rgba(255, 255, 255, 0.04);
        }

        /* Sections */
        .section {
            padding: var(--space-section) 0;
            position: relative;
        }

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

        .section-light {
            background-color: #f6f7f9;
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.12em;
            text-transform: uppercase;
            color: var(--color-accent-bright);
            margin-bottom: 12px;
        }

        .section-title {
            font-size: clamp(1.8rem, 4vw, 2.6rem);
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: 0.01em;
            margin-bottom: 16px;
            color: var(--color-text-primary);
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--color-text-secondary);
            max-width: 720px;
            line-height: 1.8;
            margin-bottom: 32px;
        }

        .section-title.light,
        .section-subtitle.light {
            color: #1A1E26;
        }

        .section-subtitle.light {
            color: #4A5260;
        }

        /* Hero */
        .hero {
            position: relative;
            padding: 80px 0 100px;
            background: linear-gradient(180deg, #0B0D10 0%, #15181E 100%);
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -240px;
            right: -160px;
            width: 560px;
            height: 560px;
            background: radial-gradient(circle, rgba(124, 58, 237, 0.28) 0%, transparent 70%);
            pointer-events: none;
            border-radius: 50%;
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: -200px;
            left: -120px;
            width: 480px;
            height: 480px;
            background: radial-gradient(circle, rgba(0, 229, 160, 0.16) 0%, transparent 70%);
            pointer-events: none;
            border-radius: 50%;
        }

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

        .hero-bento {
            display: grid;
            grid-template-columns: 1.4fr 1fr;
            gap: 24px;
            align-items: stretch;
        }

        .hero-main {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-xl);
            padding: 42px 40px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            box-shadow: var(--shadow-soft);
        }

        .hero-title {
            font-size: clamp(2.2rem, 5vw, 3.4rem);
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: 0.02em;
            margin-bottom: 18px;
            color: var(--color-text-primary);
        }

        .hero-title .highlight {
            color: var(--color-accent-bright);
        }

        .hero-desc {
            font-size: 1.1rem;
            color: var(--color-text-secondary);
            line-height: 1.8;
            margin-bottom: 28px;
            max-width: 620px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
        }

        .hero-bento-side {
            display: grid;
            grid-template-rows: 1fr 1fr;
            gap: 20px;
        }

        .hero-mini-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 24px 26px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            transition: border-color var(--transition-base), transform var(--transition-base);
        }

        .hero-mini-card:hover {
            border-color: var(--color-border-hover);
            transform: translateY(-4px);
        }

        .hero-mini-card .mini-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            background: rgba(124, 58, 237, 0.18);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--color-accent-bright);
            margin-bottom: 12px;
        }

        .hero-mini-card .mini-icon.green {
            background: rgba(0, 229, 160, 0.12);
            color: var(--color-accent-green);
        }

        .hero-mini-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--color-text-primary);
        }

        .hero-mini-card p {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            line-height: 1.6;
        }

        .hero-cta-strip {
            margin-top: 24px;
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }

        .hero-cta-strip p {
            font-size: 1rem;
            color: var(--color-text-secondary);
            margin: 0;
        }

        .hero-cta-strip p strong {
            color: var(--color-text-primary);
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 22px;
            border-radius: 9999px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-base);
            cursor: pointer;
            border: none;
            text-align: center;
            white-space: nowrap;
        }

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

        .btn-primary:hover {
            background-color: #6D28D9;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(124, 58, 237, 0.35);
        }

        .btn-primary:active {
            transform: translateY(0);
        }

        .btn-outline {
            background: transparent;
            border: 1px solid var(--color-text-secondary);
            color: var(--color-text-primary);
        }

        .btn-outline:hover {
            border-color: var(--color-accent-bright);
            color: var(--color-accent-bright);
            background-color: rgba(124, 58, 237, 0.08);
        }

        .btn-outline:active {
            transform: translateY(0);
        }

        .btn-light {
            background-color: #fff;
            color: #0B0D10;
        }

        .btn-light:hover {
            background-color: #E8E8EC;
            transform: translateY(-2px);
        }

        /* Cards */
        .card-grid {
            display: grid;
            gap: 20px;
        }

        .card-grid-3 {
            grid-template-columns: repeat(3, 1fr);
        }

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

        .card-grid-4 {
            grid-template-columns: repeat(4, 1fr);
        }

        .card {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 28px 26px;
            transition: border-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
            height: 100%;
        }

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

        .card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-sm);
            background: rgba(124, 58, 237, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--color-accent-bright);
            margin-bottom: 16px;
        }

        .card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--color-text-primary);
            line-height: 1.4;
        }

        .card p {
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
        }

        /* Steps */
        .steps-list {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }

        .step-item {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 26px 22px;
            position: relative;
            transition: border-color var(--transition-base), transform var(--transition-base);
        }

        .step-item:hover {
            border-color: var(--color-border-hover);
            transform: translateY(-4px);
        }

        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--color-accent);
            color: #fff;
            font-weight: 800;
            font-size: 1.2rem;
            margin-bottom: 14px;
        }

        .step-item h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--color-text-primary);
        }

        .step-item p {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            line-height: 1.6;
        }

        /* Stats */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }

        .stat-card {
            text-align: center;
            padding: 32px 20px;
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            transition: border-color var(--transition-base), transform var(--transition-base);
        }

        .stat-card:hover {
            border-color: var(--color-border-hover);
            transform: translateY(-4px);
        }

        .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--color-accent-bright);
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }

        .stat-number .counter-unit {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-text-secondary);
            margin-left: 4px;
        }

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

        /* Testimonials */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .testimonial-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 28px 26px;
            display: flex;
            flex-direction: column;
            gap: 14px;
            transition: border-color var(--transition-base), transform var(--transition-base);
        }

        .testimonial-card:hover {
            border-color: var(--color-border-hover);
            transform: translateY(-4px);
        }

        .testimonial-card .quote {
            font-size: 1rem;
            color: var(--color-text-secondary);
            line-height: 1.8;
            flex: 1;
        }

        .testimonial-card .author {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.9rem;
            color: var(--color-text-muted);
        }

        .testimonial-card .author .avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(124, 58, 237, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--color-accent-bright);
        }

        /* Tags */
        .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.8rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 9999px;
            background: rgba(124, 58, 237, 0.15);
            color: var(--color-accent-bright);
            border: 1px solid rgba(124, 58, 237, 0.25);
            white-space: nowrap;
        }

        .tag-green {
            background: rgba(0, 229, 160, 0.12);
            color: var(--color-accent-green);
            border-color: rgba(0, 229, 160, 0.25);
        }

        .tag-gold {
            background: rgba(212, 175, 55, 0.12);
            color: var(--color-accent-gold);
            border-color: rgba(212, 175, 55, 0.25);
        }

        /* News list */
        .news-list {
            display: grid;
            gap: 14px;
        }

        .news-item {
            display: grid;
            grid-template-columns: 140px 1fr auto;
            gap: 20px;
            align-items: center;
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 22px 24px;
            transition: border-color var(--transition-base), transform var(--transition-base);
        }

        .news-item:hover {
            border-color: var(--color-border-hover);
            transform: translateY(-2px);
        }

        .news-item .news-date {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-accent-bright);
        }

        .news-item .news-content h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-text-primary);
            margin-bottom: 6px;
        }

        .news-item .news-content p {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            line-height: 1.6;
        }

        .news-item .btn {
            font-size: 0.85rem;
            padding: 8px 16px;
        }

        /* FAQ */
        .faq-grid {
            display: grid;
            gap: 12px;
        }

        .faq-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            transition: border-color var(--transition-base);
        }

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

        .faq-question {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-text-primary);
            margin-bottom: 10px;
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }

        .faq-question .faq-icon {
            color: var(--color-accent-bright);
            flex-shrink: 0;
            margin-top: 3px;
        }

        .faq-answer {
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            line-height: 1.8;
            padding-left: 28px;
        }

        /* CTA section */
        .cta-section {
            background: linear-gradient(135deg, #15181E 0%, #1A1E26 60%, #15181E 100%);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 60px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -160px;
            left: 50%;
            transform: translateX(-50%);
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(124, 58, 237, 0.2) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: clamp(1.8rem, 4vw, 2.4rem);
            font-weight: 800;
            margin-bottom: 16px;
            position: relative;
        }

        .cta-section p {
            font-size: 1.05rem;
            color: var(--color-text-secondary);
            max-width: 640px;
            margin: 0 auto 30px;
            line-height: 1.8;
            position: relative;
        }

        /* Footer */
        .site-footer {
            background: #0A0C0F;
            border-top: 1px solid var(--color-border);
            padding: 48px 0 24px;
            color: var(--color-text-secondary);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 36px;
        }

        .footer-brand {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--color-text-primary);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-brand .logo-icon {
            width: 30px;
            height: 30px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--color-accent), #5B21B6);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            color: #fff;
        }

        .footer-desc {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            line-height: 1.7;
            margin-bottom: 18px;
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-text-primary);
            margin-bottom: 16px;
        }

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

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

        .footer-col ul li a {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            transition: color var(--transition-base);
        }

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

        .footer-bottom {
            border-top: 1px solid var(--color-border);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 0.85rem;
            color: var(--color-text-muted);
        }

        .footer-bottom a {
            color: var(--color-text-secondary);
            text-decoration: underline;
            text-underline-offset: 2px;
        }

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

        /* Bento image */
        .bento-image {
            width: 100%;
            height: 100%;
            min-height: 280px;
            border-radius: var(--radius-lg);
            object-fit: cover;
            border: 1px solid var(--color-border);
        }

        /* Animations */
        .fade-in {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }

        .fade-in.visible {
            opacity: 1;
            transform: translateY(0);
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
                scroll-behavior: auto !important;
            }
            .fade-in {
                opacity: 1;
                transform: none;
            }
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-bento {
                grid-template-columns: 1fr;
            }
            .hero-bento-side {
                grid-template-columns: 1fr 1fr;
                grid-template-rows: auto;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-list {
                grid-template-columns: repeat(2, 1fr);
            }
            .testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .card-grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .card-grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            :root {
                --space-section: 48px;
            }
            .nav-group {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-inner {
                flex-wrap: wrap;
            }
            .nav-logo {
                font-size: 1.2rem;
            }
            .mobile-menu {
                display: none;
                width: 100%;
                flex-direction: column;
                background: var(--color-bg-dark);
                border-top: 1px solid var(--color-border);
                padding: 12px 0;
            }
            .mobile-menu.open {
                display: flex;
            }
            .mobile-menu .nav-link {
                display: block;
                padding: 12px 0;
                font-size: 1rem;
            }
            .mobile-menu .nav-cta {
                align-self: flex-start;
                margin-top: 8px;
            }
            .hero-bento-side {
                grid-template-columns: 1fr;
            }
            .hero-main {
                padding: 28px 22px;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-desc {
                font-size: 1rem;
            }
            .card-grid-3,
            .card-grid-2,
            .card-grid-4,
            .steps-list,
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .news-item {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .cta-section {
                padding: 32px 22px;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.6rem;
            }
            .hero-desc {
                font-size: 0.95rem;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .btn {
                width: 100%;
            }
            .hero-cta-strip {
                flex-direction: column;
                text-align: center;
            }
        }

/* roulang page: category3 */
:root {
        --color-bg-dark: #0B0D10;
        --color-bg-deep: #15181E;
        --color-surface: #1A1E26;
        --color-surface-light: #242A35;
        --color-border: rgba(255, 255, 255, 0.08);
        --color-border-hover: rgba(124, 58, 237, 0.55);
        --color-accent: #7C3AED;
        --color-accent-bright: #A78BFA;
        --color-accent-glow: rgba(124, 58, 237, 0.35);
        --color-accent-green: #00E5A0;
        --color-accent-gold: #D4AF37;
        --color-text-primary: #F5F7FA;
        --color-text-secondary: #C0C4CC;
        --color-text-muted: #8E96A3;
        --color-text-on-accent: #FFFFFF;
        --radius-sm: 8px;
        --radius-md: 12px;
        --radius-lg: 16px;
        --radius-xl: 20px;
        --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.25);
        --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.4);
        --space-section: 80px;
        --transition-fast: 0.2s ease;
        --transition-base: 0.3s ease;
        --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Inter', 'Roboto', system-ui, -apple-system, sans-serif;
    }

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

    body {
        font-family: var(--font-sans);
        background-color: var(--color-bg-dark);
        color: var(--color-text-primary);
        line-height: 1.7;
        font-size: 16px;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
        overflow-x: hidden;
        margin: 0;
    }

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

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

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

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

    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 20px;
    }

    /* Header / Navigation */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 100;
        background-color: rgba(11, 13, 16, 0.92);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        border-bottom: 1px solid var(--color-border);
        transition: background-color var(--transition-base);
    }

    .nav-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        min-height: 68px;
        gap: 16px;
    }

    .nav-group {
        display: flex;
        align-items: center;
        gap: 20px;
        flex: 1;
    }

    .nav-group-left {
        justify-content: flex-start;
    }

    .nav-group-right {
        justify-content: flex-end;
    }

    .nav-logo {
        font-size: 1.5rem;
        font-weight: 800;
        letter-spacing: 0.02em;
        white-space: nowrap;
        color: var(--color-text-primary);
        transition: color var(--transition-base);
        display: flex;
        align-items: center;
        gap: 8px;
    }

    .nav-logo .logo-icon {
        width: 34px;
        height: 34px;
        border-radius: var(--radius-sm);
        background: linear-gradient(135deg, var(--color-accent), #5B21B6);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        font-size: 17px;
        color: #fff;
        flex-shrink: 0;
    }

    .nav-link {
        color: var(--color-text-secondary);
        font-size: 0.95rem;
        font-weight: 500;
        padding: 8px 12px;
        border-radius: var(--radius-sm);
        white-space: nowrap;
        position: relative;
        transition: color var(--transition-base), background-color var(--transition-base);
    }

    .nav-link::after {
        content: '';
        position: absolute;
        left: 12px;
        right: 12px;
        bottom: 4px;
        height: 1px;
        background-color: var(--color-accent);
        transform: scaleX(0);
        transform-origin: left;
        transition: transform var(--transition-base);
    }

    .nav-link:hover {
        color: var(--color-text-primary);
        background-color: rgba(255, 255, 255, 0.04);
    }

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

    .nav-link.active {
        color: var(--color-accent-bright);
        background-color: rgba(124, 58, 237, 0.12);
    }

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

    .nav-cta {
        background-color: var(--color-accent);
        color: #fff;
        font-weight: 600;
        font-size: 0.9rem;
        padding: 8px 16px;
        border-radius: 9999px;
        transition: background-color var(--transition-base), transform var(--transition-base);
        white-space: nowrap;
        display: inline-block;
    }

    .nav-cta:hover {
        background-color: #6D28D9;
        transform: translateY(-1px);
    }

    .nav-toggle {
        display: none;
        background: transparent;
        border: 1px solid var(--color-border);
        color: var(--color-text-primary);
        font-size: 1.3rem;
        width: 44px;
        height: 44px;
        border-radius: var(--radius-sm);
        cursor: pointer;
        transition: border-color var(--transition-base), background-color var(--transition-base);
    }

    .nav-toggle:hover {
        border-color: var(--color-accent);
        background-color: rgba(255, 255, 255, 0.04);
    }

    .mobile-menu {
        display: none;
        flex-direction: column;
        gap: 4px;
        padding: 12px 0 20px;
        background-color: rgba(11, 13, 16, 0.98);
        border-top: 1px solid var(--color-border);
    }

    .mobile-menu .nav-link {
        padding: 12px 16px;
        display: block;
        font-size: 1rem;
    }

    .mobile-menu .nav-cta {
        margin-top: 12px;
        text-align: center;
        display: block;
    }

    /* Section base */
    .section {
        padding: var(--space-section) 0;
    }

    .section-alt {
        background-color: var(--color-bg-deep);
        border-top: 1px solid var(--color-border);
        border-bottom: 1px solid var(--color-border);
    }

    .section-header {
        margin-bottom: 40px;
    }

    .section-title {
        font-size: 2rem;
        font-weight: 700;
        line-height: 1.35;
        margin-bottom: 12px;
        color: var(--color-text-primary);
        letter-spacing: 0.01em;
    }

    .section-subtitle {
        font-size: 1.1rem;
        color: var(--color-text-secondary);
        max-width: 720px;
        line-height: 1.8;
    }

    /* Category hero */
    .category-hero {
        padding: 52px 0 44px;
        background-color: var(--color-bg-deep);
        border-bottom: 1px solid var(--color-border);
        position: relative;
        overflow: hidden;
    }

    .category-hero::after {
        content: '';
        position: absolute;
        top: -60px;
        right: -40px;
        width: 240px;
        height: 240px;
        background: radial-gradient(circle, rgba(124, 58, 237, 0.12), transparent 70%);
        pointer-events: none;
    }

    .breadcrumb {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 0.9rem;
        color: var(--color-text-muted);
        margin-bottom: 18px;
        flex-wrap: wrap;
    }

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

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

    .breadcrumb .separator {
        color: var(--color-text-muted);
        font-size: 0.8rem;
    }

    .breadcrumb .current {
        color: var(--color-accent-bright);
    }

    .category-hero h1 {
        font-size: 2.6rem;
        font-weight: 800;
        line-height: 1.25;
        margin-bottom: 16px;
        letter-spacing: 0.01em;
        max-width: 850px;
        color: var(--color-text-primary);
    }

    .category-hero p {
        font-size: 1.1rem;
        color: var(--color-text-secondary);
        max-width: 720px;
        line-height: 1.8;
        margin-bottom: 0;
    }

    /* Intro section */
    .intro-grid {
        display: grid;
        grid-template-columns: 1.2fr 0.8fr;
        gap: 40px;
        align-items: center;
    }

    .intro-text h2 {
        font-size: 1.8rem;
        font-weight: 700;
        margin-bottom: 16px;
        color: var(--color-text-primary);
    }

    .intro-text p {
        color: var(--color-text-secondary);
        line-height: 1.8;
        margin-bottom: 12px;
    }

    .intro-image {
        border-radius: var(--radius-lg);
        overflow: hidden;
        border: 1px solid var(--color-border);
        box-shadow: var(--shadow-soft);
    }

    .intro-image img {
        width: 100%;
        height: auto;
        display: block;
    }

    /* Data snapshot */
    .data-snapshot-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 16px;
    }

    .data-snapshot-card {
        background-color: var(--color-surface);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-md);
        padding: 24px 20px;
        text-align: center;
        transition: border-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
    }

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

    .data-snapshot-number {
        font-size: 2.4rem;
        font-weight: 800;
        color: var(--color-accent-bright);
        line-height: 1.2;
        margin-bottom: 8px;
    }

    .data-snapshot-label {
        font-size: 0.95rem;
        color: var(--color-text-secondary);
    }

    /* List cards */
    .list-cards {
        display: flex;
        flex-direction: column;
        gap: 24px;
    }

    .list-card {
        display: grid;
        grid-template-columns: 260px 1fr auto;
        gap: 24px;
        background-color: var(--color-surface);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-lg);
        padding: 20px;
        transition: border-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
        align-items: center;
    }

    .list-card:hover {
        border-color: var(--color-border-hover);
        transform: translateX(4px);
        box-shadow: var(--shadow-soft);
    }

    .list-card-image {
        width: 260px;
        height: 160px;
        border-radius: var(--radius-md);
        overflow: hidden;
        flex-shrink: 0;
        background-color: var(--color-surface-light);
    }

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

    .list-card-content {
        min-width: 0;
    }

    .list-card-meta {
        display: flex;
        align-items: center;
        gap: 10px;
        flex-wrap: wrap;
        margin-bottom: 10px;
    }

    .badge {
        display: inline-block;
        padding: 3px 10px;
        border-radius: 9999px;
        font-size: 0.75rem;
        font-weight: 600;
        background-color: rgba(124, 58, 237, 0.15);
        color: var(--color-accent-bright);
        border: 1px solid rgba(124, 58, 237, 0.25);
        white-space: nowrap;
    }

    .badge-gold {
        background-color: rgba(212, 175, 55, 0.12);
        color: var(--color-accent-gold);
        border-color: rgba(212, 175, 55, 0.3);
    }

    .badge-green {
        background-color: rgba(0, 229, 160, 0.1);
        color: var(--color-accent-green);
        border-color: rgba(0, 229, 160, 0.25);
    }

    .list-card-date {
        color: var(--color-text-muted);
        font-size: 0.85rem;
    }

    .list-card-title {
        font-size: 1.25rem;
        font-weight: 700;
        line-height: 1.45;
        margin-bottom: 10px;
        color: var(--color-text-primary);
    }

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

    .list-card-summary {
        color: var(--color-text-secondary);
        line-height: 1.75;
        font-size: 0.95rem;
        margin-bottom: 0;
        display: -webkit-box;
        -webkit-line-clamp: 3;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .list-card-action {
        flex-shrink: 0;
    }

    .btn-read {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 8px 18px;
        border-radius: 9999px;
        background-color: transparent;
        border: 1px solid var(--color-border-hover);
        color: var(--color-accent-bright);
        font-size: 0.85rem;
        font-weight: 600;
        transition: background-color var(--transition-base), color var(--transition-base), border-color var(--transition-base);
        white-space: nowrap;
    }

    .btn-read:hover {
        background-color: var(--color-accent);
        border-color: var(--color-accent);
        color: var(--color-text-on-accent);
    }

    .btn-read i {
        font-size: 0.8rem;
    }

    /* Tags section */
    .tags-wrap {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
    }

    .tag-chip {
        display: inline-block;
        padding: 6px 16px;
        border-radius: 9999px;
        font-size: 0.85rem;
        background-color: var(--color-surface);
        border: 1px solid var(--color-border);
        color: var(--color-text-secondary);
        transition: border-color var(--transition-base), color var(--transition-base), background-color var(--transition-base);
    }

    .tag-chip:hover {
        border-color: var(--color-accent);
        color: var(--color-text-primary);
        background-color: rgba(124, 58, 237, 0.08);
    }

    /* FAQ */
    .faq-item {
        background-color: var(--color-surface);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-md);
        margin-bottom: 12px;
        overflow: hidden;
        transition: border-color var(--transition-base);
    }

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

    .faq-question {
        padding: 18px 20px;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        font-weight: 600;
        font-size: 1rem;
        color: var(--color-text-primary);
        background: transparent;
        border: none;
        width: 100%;
        text-align: left;
        transition: color var(--transition-base);
    }

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

    .faq-question .fa-chevron-down {
        transition: transform var(--transition-base);
        color: var(--color-text-muted);
        font-size: 0.9rem;
        flex-shrink: 0;
    }

    .faq-item.open .faq-question .fa-chevron-down {
        transform: rotate(180deg);
        color: var(--color-accent-bright);
    }

    .faq-answer {
        padding: 0 20px 18px;
        color: var(--color-text-secondary);
        line-height: 1.8;
        font-size: 0.95rem;
    }

    /* CTA section */
    .cta-section {
        background: linear-gradient(135deg, #1A0E2E 0%, #0B0D10 55%, #15181E 100%);
        border-top: 1px solid var(--color-border);
        border-bottom: 1px solid var(--color-border);
        padding: 64px 0;
        position: relative;
        overflow: hidden;
    }

    .cta-section::before {
        content: '';
        position: absolute;
        top: -80px;
        left: 20%;
        width: 400px;
        height: 200px;
        background: radial-gradient(circle, rgba(124, 58, 237, 0.2), transparent 70%);
        pointer-events: none;
    }

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

    .cta-title {
        font-size: 2.2rem;
        font-weight: 800;
        margin-bottom: 14px;
        color: var(--color-text-primary);
    }

    .cta-subtitle {
        font-size: 1.05rem;
        color: var(--color-text-secondary);
        margin-bottom: 28px;
        line-height: 1.8;
    }

    .subscribe-form {
        display: flex;
        gap: 12px;
        justify-content: center;
        flex-wrap: wrap;
    }

    .subscribe-form input {
        flex: 1;
        min-width: 240px;
        padding: 12px 18px;
        border-radius: 9999px;
        border: 1px solid var(--color-border);
        background-color: var(--color-surface);
        color: var(--color-text-primary);
        font-size: 0.95rem;
        transition: border-color var(--transition-base), box-shadow var(--transition-base);
    }

    .subscribe-form input::placeholder {
        color: var(--color-text-muted);
    }

    .subscribe-form input:focus {
        border-color: var(--color-accent);
        box-shadow: 0 0 0 2px var(--color-accent-glow);
        outline: none;
    }

    .btn-primary {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        padding: 12px 28px;
        border-radius: 9999px;
        background-color: var(--color-accent);
        color: var(--color-text-on-accent);
        font-weight: 600;
        font-size: 0.95rem;
        border: none;
        cursor: pointer;
        transition: background-color var(--transition-base), transform var(--transition-base);
        white-space: nowrap;
    }

    .btn-primary:hover {
        background-color: #6D28D9;
        transform: translateY(-1px);
    }

    /* Editor picks */
    .editor-picks-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }

    .editor-card {
        background-color: var(--color-surface);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-lg);
        overflow: hidden;
        transition: border-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
        display: flex;
        flex-direction: column;
    }

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

    .editor-card-img {
        height: 180px;
        background-color: var(--color-surface-light);
        overflow: hidden;
    }

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

    .editor-card-body {
        padding: 18px 20px;
        flex: 1;
    }

    .editor-card-meta {
        display: flex;
        gap: 12px;
        align-items: center;
        margin-bottom: 8px;
        font-size: 0.8rem;
        color: var(--color-text-muted);
    }

    .editor-card-title {
        font-size: 1.15rem;
        font-weight: 700;
        margin-bottom: 8px;
        color: var(--color-text-primary);
    }

    .editor-card-summary {
        font-size: 0.9rem;
        color: var(--color-text-secondary);
        line-height: 1.7;
        margin-bottom: 12px;
    }

    /* Footer */
    .site-footer {
        background-color: var(--color-bg-deep);
        color: var(--color-text-secondary);
        border-top: 1px solid var(--color-border);
        padding: 48px 0 24px;
        margin-top: 0;
    }

    .footer-grid {
        display: grid;
        grid-template-columns: 1.8fr 1fr 1fr 1fr;
        gap: 40px;
        margin-bottom: 32px;
    }

    .footer-brand {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 1.4rem;
        font-weight: 800;
        color: var(--color-text-primary);
        margin-bottom: 14px;
    }

    .footer-brand .logo-icon {
        width: 32px;
        height: 32px;
        border-radius: var(--radius-sm);
        background: linear-gradient(135deg, var(--color-accent), #5B21B6);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        font-size: 16px;
        color: #fff;
    }

    .footer-desc {
        font-size: 0.9rem;
        color: var(--color-text-muted);
        line-height: 1.8;
        margin-bottom: 12px;
    }

    .footer-col h4 {
        font-size: 1rem;
        font-weight: 700;
        color: var(--color-text-primary);
        margin-bottom: 16px;
    }

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

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

    .footer-col ul li a {
        color: var(--color-text-secondary);
        font-size: 0.9rem;
        transition: color var(--transition-base);
    }

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

    .footer-bottom {
        border-top: 1px solid var(--color-border);
        padding-top: 20px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        flex-wrap: wrap;
        gap: 12px;
        font-size: 0.85rem;
        color: var(--color-text-muted);
    }

    .footer-bottom a {
        color: var(--color-text-secondary);
        transition: color var(--transition-base);
    }

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

    /* Responsive */
    @media (max-width: 1024px) {
        :root {
            --space-section: 56px;
        }

        .nav-group {
            gap: 10px;
        }

        .nav-group-left {
            justify-content: flex-start;
        }

        .nav-group-right {
            justify-content: flex-end;
        }

        .nav-link {
            font-size: 0.85rem;
            padding: 6px 8px;
        }

        .nav-logo {
            font-size: 1.3rem;
        }

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

        .data-snapshot-grid {
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
        }

        .list-card {
            grid-template-columns: 200px 1fr;
            grid-template-areas: 'image content' 'image action';
            gap: 16px;
            padding: 16px;
        }

        .list-card-image {
            grid-area: image;
            width: 200px;
            height: 130px;
        }

        .list-card-content {
            grid-area: content;
        }

        .list-card-action {
            grid-area: action;
            align-self: end;
        }

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

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

    @media (max-width: 768px) {
        :root {
            --space-section: 40px;
        }

        .nav-inner {
            min-height: 60px;
        }

        .nav-group {
            display: none;
        }

        .nav-logo {
            font-size: 1.2rem;
        }

        .nav-toggle {
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

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

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

        .category-hero h1 {
            font-size: 2rem;
        }

        .section-title {
            font-size: 1.6rem;
        }

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

        .data-snapshot-number {
            font-size: 1.8rem;
        }

        .list-card {
            grid-template-columns: 1fr;
            grid-template-areas: 'image' 'content' 'action';
            gap: 14px;
            padding: 14px;
        }

        .list-card-image {
            width: 100%;
            height: 180px;
        }

        .list-card-action {
            align-self: start;
        }

        .cta-title {
            font-size: 1.7rem;
        }

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

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

        .btn-primary {
            width: 100%;
            justify-content: center;
        }

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

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

    @media (max-width: 520px) {
        .category-hero h1 {
            font-size: 1.7rem;
        }

        .section-title {
            font-size: 1.4rem;
        }

        .list-card-title {
            font-size: 1.05rem;
        }

        .data-snapshot-card {
            padding: 16px 12px;
        }

        .data-snapshot-number {
            font-size: 1.5rem;
        }
    }

    /* Reduced motion */
    @media (prefers-reduced-motion: reduce) {
        html {
            scroll-behavior: auto;
        }

        *,
        *::before,
        *::after {
            animation-duration: 0.01ms !important;
            animation-iteration-count: 1 !important;
            transition-duration: 0.01ms !important;
        }
    }

/* roulang page: category2 */
:root {
            --color-bg-dark: #0B0D10;
            --color-bg-deep: #15181E;
            --color-surface: #1A1E26;
            --color-surface-light: #242A35;
            --color-border: rgba(255, 255, 255, 0.08);
            --color-border-hover: rgba(124, 58, 237, 0.55);
            --color-accent: #7C3AED;
            --color-accent-bright: #A78BFA;
            --color-accent-glow: rgba(124, 58, 237, 0.35);
            --color-accent-green: #00E5A0;
            --color-accent-gold: #D4AF37;
            --color-text-primary: #F5F7FA;
            --color-text-secondary: #C0C4CC;
            --color-text-muted: #8E96A3;
            --color-text-on-accent: #FFFFFF;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.25);
            --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.4);
            --space-section: 80px;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Inter', 'Roboto', system-ui, -apple-system, sans-serif;
        }

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

        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg-dark);
            color: var(--color-text-primary);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

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

        button,
        input {
            font-family: inherit;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: rgba(11, 13, 16, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border);
            transition: background-color var(--transition-base);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            gap: 16px;
        }

        .nav-group {
            display: flex;
            align-items: center;
            gap: 20px;
            flex: 1;
        }

        .nav-group-left {
            justify-content: flex-start;
        }

        .nav-group-right {
            justify-content: flex-end;
        }

        .nav-logo {
            font-size: 1.5rem;
            font-weight: 800;
            letter-spacing: 0.02em;
            white-space: nowrap;
            color: var(--color-text-primary);
            transition: color var(--transition-base);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-logo .logo-icon {
            width: 34px;
            height: 34px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--color-accent), #5B21B6);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            color: #fff;
            flex-shrink: 0;
        }

        .nav-link {
            color: var(--color-text-secondary);
            font-size: 0.95rem;
            font-weight: 500;
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            white-space: nowrap;
            position: relative;
            transition: color var(--transition-base), background-color var(--transition-base);
        }

        .nav-link::after {
            content: '';
            position: absolute;
            left: 12px;
            right: 12px;
            bottom: 4px;
            height: 1px;
            background-color: var(--color-accent);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition-base);
        }

        .nav-link:hover {
            color: var(--color-text-primary);
            background-color: rgba(255, 255, 255, 0.04);
        }

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

        .nav-link.active {
            color: var(--color-accent-bright);
            background-color: rgba(124, 58, 237, 0.12);
        }

        .nav-cta {
            background-color: var(--color-accent);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            padding: 8px 16px;
            border-radius: 9999px;
            transition: background-color var(--transition-base), transform var(--transition-base);
        }

        .nav-cta:hover {
            background-color: #6D28D9;
            transform: translateY(-1px);
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--color-border);
            color: var(--color-text-primary);
            font-size: 1.3rem;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: border-color var(--transition-base), background-color var(--transition-base);
        }

        .nav-toggle:hover {
            border-color: var(--color-border-hover);
            background-color: rgba(255, 255, 255, 0.04);
        }

        .mobile-menu {
            display: none;
            padding: 12px 0 20px;
            border-top: 1px solid var(--color-border);
            flex-direction: column;
            gap: 4px;
            align-items: flex-start;
        }

        .mobile-menu .nav-link,
        .mobile-menu .nav-cta {
            display: block;
            width: 100%;
            padding: 10px 12px;
            border-radius: var(--radius-sm);
        }

        .mobile-menu .nav-cta {
            text-align: center;
            border-radius: var(--radius-sm);
            margin-top: 8px;
        }

        /* Breadcrumb */
        .breadcrumb-row {
            background-color: rgba(255, 255, 255, 0.02);
            border-bottom: 1px solid var(--color-border);
            padding: 12px 0;
            font-size: 0.85rem;
            color: var(--color-text-muted);
        }

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

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

        .breadcrumb-row .sep {
            margin: 0 8px;
            color: var(--color-text-muted);
        }

        /* Category Hero */
        .category-hero {
            padding: 48px 0;
            background: radial-gradient(ellipse at 20% 20%, rgba(124, 58, 237, 0.12), transparent 55%),
                        radial-gradient(ellipse at 80% 70%, rgba(0, 229, 160, 0.06), transparent 55%),
                        var(--color-bg-dark);
            border-bottom: 1px solid var(--color-border);
        }

        .category-hero h1 {
            font-size: clamp(2rem, 4vw, 2.8rem);
            font-weight: 800;
            letter-spacing: -0.01em;
            margin-bottom: 16px;
            line-height: 1.25;
            color: var(--color-text-primary);
        }

        .category-hero .cat-desc {
            font-size: 1.05rem;
            color: var(--color-text-secondary);
            max-width: 720px;
            line-height: 1.85;
        }

        .cat-hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 20px;
        }

        .cat-hero-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            color: var(--color-text-muted);
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: 9999px;
            padding: 6px 14px;
        }

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

        /* Section base */
        .section-block {
            padding: var(--space-section) 0;
        }

        .section-block.alt {
            background-color: var(--color-bg-deep);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }

        .section-head {
            margin-bottom: 32px;
        }

        .section-head h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 700;
            letter-spacing: -0.01em;
            margin-bottom: 12px;
            color: var(--color-text-primary);
            line-height: 1.3;
        }

        .section-head p {
            color: var(--color-text-secondary);
            font-size: 1rem;
            max-width: 680px;
            line-height: 1.8;
        }

        .section-head .accent-line {
            display: inline-block;
            width: 40px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 2px;
            margin-bottom: 16px;
        }

        .section-head .accent-line.green {
            background: var(--color-accent-green);
        }

        /* Method / Steps */
        .method-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .method-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 24px;
            transition: border-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
        }

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

        .method-card .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--color-accent-glow);
            color: var(--color-accent-bright);
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 12px;
        }

        .method-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--color-text-primary);
        }

        .method-card p {
            color: var(--color-text-secondary);
            font-size: 0.9rem;
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* Content list cards */
        .content-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .content-card {
            display: flex;
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
        }

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

        .content-card .card-img {
            flex: 0 0 220px;
            min-height: 180px;
            position: relative;
            overflow: hidden;
        }

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

        .content-card .card-body {
            flex: 1;
            padding: 22px 24px;
            display: flex;
            flex-direction: column;
        }

        .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 10px;
        }

        .card-tag {
            font-size: 0.72rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 9999px;
            background: rgba(124, 58, 237, 0.15);
            color: var(--color-accent-bright);
            border: 1px solid rgba(124, 58, 237, 0.25);
            letter-spacing: 0.03em;
        }

        .card-tag.green {
            background: rgba(0, 229, 160, 0.12);
            color: var(--color-accent-green);
            border-color: rgba(0, 229, 160, 0.25);
        }

        .card-tag.gold {
            background: rgba(212, 175, 55, 0.12);
            color: var(--color-accent-gold);
            border-color: rgba(212, 175, 55, 0.25);
        }

        .content-card h3 {
            font-size: 1.18rem;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.35;
            color: var(--color-text-primary);
        }

        .content-card h3 a {
            transition: color var(--transition-base);
        }

        .content-card h3 a:hover {
            color: var(--color-accent-bright);
        }

        .content-card .card-excerpt {
            color: var(--color-text-secondary);
            font-size: 0.9rem;
            line-height: 1.7;
            margin-bottom: 12px;
            flex: 1;
        }

        .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.82rem;
            color: var(--color-text-muted);
        }

        .card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .card-read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-accent-bright);
            transition: color var(--transition-base), gap var(--transition-base);
            margin-top: 10px;
        }

        .card-read-more:hover {
            color: var(--color-accent-green);
            gap: 10px;
        }

        /* Tag cloud */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .tag-cloud a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: 9999px;
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            transition: border-color var(--transition-base), color var(--transition-base), background-color var(--transition-base);
        }

        .tag-cloud a:hover {
            border-color: var(--color-border-hover);
            color: var(--color-accent-bright);
            background-color: rgba(124, 58, 237, 0.08);
        }

        .tag-cloud a i {
            font-size: 0.7rem;
            color: var(--color-text-muted);
        }

        /* Data snapshot */
        .data-snapshot-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .data-snapshot-item {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 24px;
            text-align: center;
            transition: border-color var(--transition-base), transform var(--transition-base);
        }

        .data-snapshot-item:hover {
            border-color: var(--color-border-hover);
            transform: translateY(-2px);
        }

        .data-snapshot-item .snap-num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--color-accent-green);
            letter-spacing: -0.02em;
            line-height: 1.2;
            margin-bottom: 6px;
        }

        .data-snapshot-item .snap-label {
            color: var(--color-text-secondary);
            font-size: 0.85rem;
            font-weight: 500;
        }

        .data-snapshot-item .snap-sub {
            color: var(--color-text-muted);
            font-size: 0.75rem;
            margin-top: 4px;
        }

        /* Editor picks */
        .editor-picks {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .editor-pick-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 20px;
            transition: border-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
        }

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

        .editor-pick-card .pick-label {
            font-size: 0.72rem;
            font-weight: 700;
            color: var(--color-accent-green);
            text-transform: uppercase;
            letter-spacing: 0.08em;
            margin-bottom: 8px;
            display: block;
        }

        .editor-pick-card h4 {
            font-size: 1rem;
            font-weight: 700;
            line-height: 1.45;
            margin-bottom: 8px;
            color: var(--color-text-primary);
        }

        .editor-pick-card p {
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 840px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border-color var(--transition-base);
        }

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            cursor: pointer;
            font-weight: 700;
            font-size: 1rem;
            color: var(--color-text-primary);
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            transition: background-color var(--transition-base);
        }

        .faq-question:hover {
            background-color: rgba(255, 255, 255, 0.03);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(124, 58, 237, 0.15);
            color: var(--color-accent-bright);
            font-size: 0.8rem;
            transition: transform var(--transition-base);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base), padding var(--transition-base);
            padding: 0 22px;
            color: var(--color-text-secondary);
            font-size: 0.92rem;
            line-height: 1.75;
        }

        .faq-item.active .faq-answer {
            max-height: 400px;
            padding: 0 22px 20px;
        }

        /* Subscribe CTA */
        .subscribe-section {
            padding: 60px 0;
            background: linear-gradient(135deg, rgba(124, 58, 237, 0.18), rgba(0, 0, 0, 0.6)),
                        var(--color-bg-deep);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
            text-align: center;
        }

        .subscribe-section h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 800;
            margin-bottom: 12px;
            color: var(--color-text-primary);
        }

        .subscribe-section p {
            color: var(--color-text-secondary);
            max-width: 520px;
            margin: 0 auto 28px;
            font-size: 1rem;
        }

        .subscribe-form {
            display: flex;
            gap: 12px;
            max-width: 480px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }

        .subscribe-form input {
            flex: 1;
            min-width: 240px;
            padding: 12px 18px;
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            color: var(--color-text-primary);
            font-size: 0.95rem;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }

        .subscribe-form input::placeholder {
            color: var(--color-text-muted);
        }

        .subscribe-form input:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.2);
        }

        .subscribe-form button {
            padding: 12px 28px;
            background: var(--color-accent);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background-color var(--transition-base), transform var(--transition-base);
        }

        .subscribe-form button:hover {
            background: #6D28D9;
            transform: translateY(-1px);
        }

        .subscribe-form button:active {
            transform: scale(0.98);
        }

        /* Footer */
        .site-footer {
            background-color: var(--color-bg-deep);
            border-top: 1px solid var(--color-border);
            padding: 48px 0 24px;
        }

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

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--color-text-primary);
            margin-bottom: 12px;
        }

        .footer-brand .logo-icon {
            width: 30px;
            height: 30px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--color-accent), #5B21B6);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: #fff;
        }

        .footer-desc {
            color: var(--color-text-muted);
            font-size: 0.85rem;
            line-height: 1.7;
            max-width: 320px;
            margin-bottom: 8px;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--color-text-primary);
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

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

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

        .footer-col ul li a {
            color: var(--color-text-muted);
            font-size: 0.85rem;
            transition: color var(--transition-base);
        }

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid var(--color-border);
            font-size: 0.8rem;
            color: var(--color-text-muted);
        }

        .footer-bottom a {
            color: var(--color-text-muted);
            transition: color var(--transition-base);
        }

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

        /* Responsive */
        @media (max-width: 1024px) {
            .nav-group {
                gap: 10px;
            }
            .nav-link {
                font-size: 0.85rem;
                padding: 6px 8px;
            }
            .data-snapshot-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .editor-picks {
                grid-template-columns: repeat(2, 1fr);
            }
            .content-card .card-img {
                flex: 0 0 160px;
                min-height: 140px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --space-section: 48px;
            }
            .nav-group {
                display: none;
            }
            .nav-toggle {
                display: inline-flex;
                align-items: center;
                justify-content: center;
            }
            .nav-inner {
                justify-content: space-between;
            }
            .nav-logo {
                font-size: 1.25rem;
            }
            .nav-logo .logo-icon {
                width: 28px;
                height: 28px;
                font-size: 13px;
            }
            .mobile-menu {
                display: none;
            }
            .mobile-menu.open {
                display: flex;
            }
            .category-hero {
                padding: 32px 0;
            }
            .category-hero h1 {
                font-size: 1.7rem;
            }
            .method-grid {
                grid-template-columns: 1fr;
            }
            .content-card {
                flex-direction: column;
            }
            .content-card .card-img {
                flex: none;
                min-height: 180px;
                width: 100%;
            }
            .content-card .card-body {
                padding: 16px 18px;
            }
            .editor-picks {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-brand {
                font-size: 1rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .subscribe-section {
                padding: 40px 0;
            }
            .data-snapshot-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .data-snapshot-item {
                padding: 16px;
            }
            .data-snapshot-item .snap-num {
                font-size: 1.6rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .section-head h2 {
                font-size: 1.4rem;
            }
            .category-hero h1 {
                font-size: 1.5rem;
            }
            .category-hero .cat-desc {
                font-size: 0.9rem;
            }
            .cat-hero-meta {
                gap: 8px;
            }
            .cat-hero-meta span {
                font-size: 0.75rem;
                padding: 4px 10px;
            }
            .content-card .card-img {
                min-height: 150px;
            }
            .content-card h3 {
                font-size: 1.02rem;
            }
            .content-card .card-excerpt {
                font-size: 0.83rem;
            }
            .card-meta {
                font-size: 0.72rem;
                flex-wrap: wrap;
                gap: 8px;
            }
            .tag-cloud a {
                font-size: 0.75rem;
                padding: 6px 12px;
            }
            .data-snapshot-grid {
                grid-template-columns: 1fr;
            }
            .faq-question {
                font-size: 0.9rem;
                padding: 14px 16px;
            }
            .faq-answer {
                font-size: 0.85rem;
                padding: 0 16px;
            }
            .faq-item.active .faq-answer {
                padding: 0 16px 16px;
            }
            .subscribe-form {
                flex-direction: column;
            }
            .subscribe-form input {
                min-width: 100%;
            }
            .subscribe-form button {
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

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

/* roulang page: category1 */
:root {
            --color-bg-dark: #0B0D10;
            --color-bg-deep: #15181E;
            --color-surface: #1A1E26;
            --color-surface-light: #242A35;
            --color-border: rgba(255, 255, 255, 0.08);
            --color-border-hover: rgba(124, 58, 237, 0.55);
            --color-accent: #7C3AED;
            --color-accent-bright: #A78BFA;
            --color-accent-glow: rgba(124, 58, 237, 0.35);
            --color-accent-green: #00E5A0;
            --color-accent-gold: #D4AF37;
            --color-text-primary: #F5F7FA;
            --color-text-secondary: #C0C4CC;
            --color-text-muted: #8E96A3;
            --color-text-on-accent: #FFFFFF;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.25);
            --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.4);
            --space-section: 80px;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Inter', 'Roboto', system-ui, -apple-system, sans-serif;
        }

        @media (max-width: 640px) {
            :root {
                --space-section: 48px;
            }
        }

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

        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg-dark);
            color: var(--color-text-primary);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

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

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

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

        button,
        input {
            font-family: inherit;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: rgba(11, 13, 16, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border);
            transition: background-color var(--transition-base);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            gap: 16px;
        }

        .nav-group {
            display: flex;
            align-items: center;
            gap: 20px;
            flex: 1;
        }

        .nav-group-left {
            justify-content: flex-start;
        }

        .nav-group-right {
            justify-content: flex-end;
        }

        .nav-logo {
            font-size: 1.5rem;
            font-weight: 800;
            letter-spacing: 0.02em;
            white-space: nowrap;
            color: var(--color-text-primary);
            transition: color var(--transition-base);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-logo .logo-icon {
            width: 34px;
            height: 34px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--color-accent), #5B21B6);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            color: #fff;
            flex-shrink: 0;
        }

        .nav-link {
            color: var(--color-text-secondary);
            font-size: 0.95rem;
            font-weight: 500;
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            white-space: nowrap;
            position: relative;
            transition: color var(--transition-base), background-color var(--transition-base);
        }

        .nav-link::after {
            content: '';
            position: absolute;
            left: 12px;
            right: 12px;
            bottom: 4px;
            height: 1px;
            background-color: var(--color-accent);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition-base);
        }

        .nav-link:hover {
            color: var(--color-text-primary);
            background-color: rgba(255, 255, 255, 0.04);
        }

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

        .nav-link.active {
            color: var(--color-accent-bright);
            background-color: rgba(124, 58, 237, 0.12);
        }

        .nav-cta {
            background-color: var(--color-accent);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            padding: 8px 16px;
            border-radius: 9999px;
            transition: background-color var(--transition-base), transform var(--transition-base);
            white-space: nowrap;
        }

        .nav-cta:hover {
            background-color: #6D28D9;
            transform: translateY(-1px);
            color: #fff;
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--color-border);
            color: var(--color-text-primary);
            font-size: 1.3rem;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: border-color var(--transition-base), background-color var(--transition-base);
        }

        .nav-toggle:hover {
            border-color: var(--color-accent);
            background-color: rgba(124, 58, 237, 0.1);
        }

        .mobile-menu {
            display: none;
            padding: 16px 0;
            flex-direction: column;
            gap: 4px;
            background-color: rgba(11, 13, 16, 0.98);
            border-top: 1px solid var(--color-border);
        }

        .mobile-menu .nav-link,
        .mobile-menu .nav-cta {
            display: block;
            text-align: left;
            padding: 10px 16px;
            border-radius: var(--radius-sm);
        }

        .mobile-menu .nav-cta {
            text-align: center;
            border-radius: 9999px;
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--color-text-muted);
            margin-bottom: 12px;
            flex-wrap: wrap;
        }

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

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

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

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

        /* Category Hero */
        .category-hero {
            padding: 56px 0 40px;
            background-color: var(--color-bg-dark);
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--color-border);
        }

        .category-hero::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(0, 229, 160, 0.08), transparent 65%);
            pointer-events: none;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            bottom: -100px;
            left: -60px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(124, 58, 237, 0.12), transparent 65%);
            pointer-events: none;
        }

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

        .category-hero h1 {
            font-size: 2.75rem;
            font-weight: 800;
            letter-spacing: 0.01em;
            margin: 0 0 16px;
            color: var(--color-text-primary);
            line-height: 1.3;
        }

        .category-hero .hero-desc {
            font-size: 1.1rem;
            color: var(--color-text-secondary);
            max-width: 720px;
            margin: 0;
            line-height: 1.8;
        }

        .category-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background-color: rgba(0, 229, 160, 0.1);
            color: var(--color-accent-green);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 9999px;
            margin-bottom: 16px;
            border: 1px solid rgba(0, 229, 160, 0.25);
        }

        /* Section common */
        .section {
            padding: var(--space-section) 0;
        }

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

        .section-header {
            margin-bottom: 40px;
        }

        .section-header h2 {
            font-size: 2rem;
            font-weight: 700;
            margin: 0 0 12px;
            color: var(--color-text-primary);
            line-height: 1.4;
        }

        .section-header .section-sub {
            color: var(--color-text-muted);
            font-size: 1rem;
            max-width: 640px;
            margin: 0;
        }

        .section-header .section-accent {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-accent-green);
            margin-bottom: 8px;
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }

        /* Stats Snapshot */
        .stats-snapshot {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 24px;
            text-align: center;
            transition: border-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
        }

        .stat-card:hover {
            border-color: rgba(0, 229, 160, 0.4);
            transform: translateY(-2px);
            box-shadow: var(--shadow-soft);
        }

        .stat-number {
            font-size: 2.25rem;
            font-weight: 800;
            color: var(--color-accent-green);
            line-height: 1.2;
            margin-bottom: 4px;
            letter-spacing: 0.01em;
        }

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

        /* Tags */
        .tags-row {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag-pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 9999px;
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            color: var(--color-text-secondary);
            font-size: 0.85rem;
            font-weight: 500;
            transition: border-color var(--transition-base), color var(--transition-base), background-color var(--transition-base);
            cursor: pointer;
        }

        .tag-pill:hover {
            border-color: var(--color-accent);
            color: var(--color-accent-bright);
            background-color: rgba(124, 58, 237, 0.08);
        }

        .tag-pill .tag-count {
            color: var(--color-text-muted);
            font-size: 0.75rem;
            font-weight: 400;
        }

        /* Content Cards List - alternating layout */
        .content-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .content-card {
            display: grid;
            grid-template-columns: 300px 1fr;
            gap: 24px;
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: border-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
        }

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

        .content-card.card-reverse {
            grid-template-columns: 1fr 300px;
        }

        .content-card .card-image {
            position: relative;
            height: 100%;
            min-height: 200px;
            overflow: hidden;
        }

        .content-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

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

        .content-card .card-image .card-tag-overlay {
            position: absolute;
            top: 12px;
            left: 12px;
            background-color: rgba(11, 13, 16, 0.85);
            backdrop-filter: blur(4px);
            color: var(--color-text-primary);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 9999px;
            border: 1px solid var(--color-border);
        }

        .content-card .card-body {
            padding: 22px 20px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: 10px;
        }

        .content-card .card-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.8rem;
            color: var(--color-text-muted);
            flex-wrap: wrap;
        }

        .content-card .card-meta .meta-tag {
            background-color: rgba(124, 58, 237, 0.15);
            color: var(--color-accent-bright);
            padding: 2px 10px;
            border-radius: 9999px;
            font-weight: 500;
            border: 1px solid rgba(124, 58, 237, 0.3);
        }

        .content-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin: 0;
            line-height: 1.5;
            color: var(--color-text-primary);
        }

        .content-card h3 a {
            color: inherit;
            transition: color var(--transition-base);
        }

        .content-card h3 a:hover {
            color: var(--color-accent-bright);
        }

        .content-card .card-excerpt {
            font-size: 0.92rem;
            color: var(--color-text-secondary);
            line-height: 1.75;
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .content-card .card-link {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-accent-bright);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition-base), color var(--transition-base);
        }

        .content-card .card-link:hover {
            color: var(--color-text-primary);
            gap: 10px;
        }

        /* Focus matches */
        .focus-matches {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .focus-match-card {
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 20px;
            transition: border-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
        }

        .focus-match-card:hover {
            border-color: var(--color-accent);
            transform: translateY(-3px);
            box-shadow: var(--shadow-soft);
        }

        .focus-match-card .match-date {
            font-size: 0.8rem;
            color: var(--color-accent-green);
            font-weight: 600;
            margin-bottom: 8px;
        }

        .focus-match-card .match-teams {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-text-primary);
            margin-bottom: 6px;
            line-height: 1.4;
        }

        .focus-match-card .match-info {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .focus-match-card .heat-indicator {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            color: var(--color-accent-gold);
            font-weight: 600;
        }

        /* Related topics */
        .related-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .related-topic-card {
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 18px 16px;
            transition: border-color var(--transition-base), transform var(--transition-base);
            text-align: left;
        }

        .related-topic-card:hover {
            border-color: var(--color-border-hover);
            transform: translateY(-2px);
        }

        .related-topic-card .topic-icon {
            font-size: 1.3rem;
            color: var(--color-accent-bright);
            margin-bottom: 8px;
            display: inline-block;
        }

        .related-topic-card h4 {
            font-size: 0.95rem;
            font-weight: 600;
            margin: 0 0 4px;
            color: var(--color-text-primary);
        }

        .related-topic-card p {
            font-size: 0.82rem;
            color: var(--color-text-muted);
            margin: 0;
            line-height: 1.5;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border-color var(--transition-base);
        }

        .faq-item:hover {
            border-color: rgba(124, 58, 237, 0.35);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 20px;
            cursor: pointer;
            font-weight: 600;
            color: var(--color-text-primary);
            font-size: 1rem;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            transition: background-color var(--transition-base);
        }

        .faq-question:hover {
            background-color: rgba(255, 255, 255, 0.04);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            transition: transform var(--transition-base);
            color: var(--color-accent-bright);
            font-size: 1rem;
        }

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

        .faq-answer {
            padding: 0 20px 18px;
            color: var(--color-text-secondary);
            font-size: 0.92rem;
            line-height: 1.8;
            display: none;
        }

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

        /* CTA Section */
        .cta-section {
            padding: 72px 0;
            background-color: var(--color-bg-deep);
            position: relative;
            overflow: hidden;
            border-top: 1px solid var(--color-border);
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60%;
            left: 50%;
            transform: translateX(-50%);
            width: 700px;
            height: 700px;
            background: radial-gradient(circle, rgba(124, 58, 237, 0.12), transparent 65%);
            pointer-events: none;
        }

        .cta-inner {
            text-align: center;
            position: relative;
            z-index: 1;
        }

        .cta-inner h2 {
            font-size: 2.25rem;
            font-weight: 800;
            margin: 0 0 14px;
            color: var(--color-text-primary);
        }

        .cta-inner p {
            font-size: 1.05rem;
            color: var(--color-text-secondary);
            max-width: 560px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }

        .cta-buttons {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 600;
            font-size: 0.95rem;
            padding: 12px 24px;
            border-radius: 9999px;
            transition: all var(--transition-base);
            cursor: pointer;
            border: none;
            text-decoration: none;
        }

        .btn-primary {
            background-color: var(--color-accent);
            color: var(--color-text-on-accent);
        }

        .btn-primary:hover {
            background-color: #6D28D9;
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(124, 58, 237, 0.4);
            color: #fff;
        }

        .btn-secondary {
            background-color: transparent;
            color: var(--color-text-primary);
            border: 1px solid var(--color-border);
        }

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

        .btn:active {
            transform: scale(0.97);
        }

        /* Footer */
        .site-footer {
            background-color: var(--color-bg-dark);
            border-top: 1px solid var(--color-border);
            padding: 56px 0 24px;
        }

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

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--color-text-primary);
            margin-bottom: 12px;
        }

        .footer-brand .logo-icon {
            width: 30px;
            height: 30px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--color-accent), #5B21B6);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            color: #fff;
        }

        .footer-desc {
            color: var(--color-text-muted);
            font-size: 0.88rem;
            line-height: 1.75;
            margin: 0 0 8px;
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-text-primary);
            margin: 0 0 12px;
            letter-spacing: 0.03em;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul a {
            color: var(--color-text-muted);
            font-size: 0.88rem;
            transition: color var(--transition-base), padding-left var(--transition-base);
        }

        .footer-col ul a:hover {
            color: var(--color-accent-bright);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid var(--color-border);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--color-text-muted);
        }

        .footer-bottom a {
            color: var(--color-text-muted);
            transition: color var(--transition-base);
        }

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

        /* Animation */
        .fade-in-up {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }

        .fade-in-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

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

            .fade-in-up {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .nav-group {
                gap: 10px;
            }

            .nav-link {
                padding: 8px 8px;
                font-size: 0.85rem;
            }

            .content-card {
                grid-template-columns: 240px 1fr;
                gap: 16px;
            }

            .content-card.card-reverse {
                grid-template-columns: 1fr 240px;
            }

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

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

            .stats-snapshot {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .category-hero h1 {
                font-size: 2.25rem;
            }
        }

        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }

            .nav-group-left,
            .nav-group-right {
                display: none;
            }

            .nav-inner {
                justify-content: space-between;
            }

            .mobile-menu {
                display: flex;
            }

            .mobile-menu .nav-link.active {
                background-color: rgba(124, 58, 237, 0.12);
            }

            .content-card,
            .content-card.card-reverse {
                grid-template-columns: 1fr;
            }

            .content-card .card-image {
                min-height: 180px;
                height: auto;
                aspect-ratio: 16/9;
            }

            .focus-matches {
                grid-template-columns: 1fr;
            }

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

            .category-hero {
                padding: 40px 0 32px;
            }

            .category-hero h1 {
                font-size: 2rem;
            }

            .section {
                padding: var(--space-section) 0;
            }

            .cta-inner h2 {
                font-size: 1.75rem;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

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

            .stats-snapshot {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

            .stat-number {
                font-size: 1.7rem;
            }

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

            .category-hero h1 {
                font-size: 1.6rem;
            }

            .category-hero .hero-desc {
                font-size: 0.95rem;
            }

            .cta-buttons {
                flex-direction: column;
                width: 100%;
            }

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

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

            .content-card h3 {
                font-size: 1.1rem;
            }
        }

/* roulang page: category4 */
:root {
            --color-bg-dark: #0B0D10;
            --color-bg-deep: #15181E;
            --color-surface: #1A1E26;
            --color-surface-light: #242A35;
            --color-border: rgba(255, 255, 255, 0.08);
            --color-border-hover: rgba(124, 58, 237, 0.55);
            --color-accent: #7C3AED;
            --color-accent-bright: #A78BFA;
            --color-accent-glow: rgba(124, 58, 237, 0.35);
            --color-accent-green: #00E5A0;
            --color-accent-gold: #D4AF37;
            --color-text-primary: #F5F7FA;
            --color-text-secondary: #C0C4CC;
            --color-text-muted: #8E96A3;
            --color-text-on-accent: #FFFFFF;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.25);
            --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.4);
            --space-section: 80px;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Inter', 'Roboto', system-ui, -apple-system, sans-serif;
        }

        @media (max-width: 640px) {
            :root {
                --space-section: 48px;
            }
        }

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

        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg-dark);
            color: var(--color-text-primary);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

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

        button,
        input {
            font-family: inherit;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: rgba(11, 13, 16, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border);
            transition: background-color var(--transition-base);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            gap: 16px;
        }

        .nav-group {
            display: flex;
            align-items: center;
            gap: 20px;
            flex: 1;
        }

        .nav-group-left {
            justify-content: flex-start;
        }

        .nav-group-right {
            justify-content: flex-end;
        }

        .nav-logo {
            font-size: 1.5rem;
            font-weight: 800;
            letter-spacing: 0.02em;
            white-space: nowrap;
            color: var(--color-text-primary);
            transition: color var(--transition-base);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-logo .logo-icon {
            width: 34px;
            height: 34px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--color-accent), #5B21B6);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            color: #fff;
            flex-shrink: 0;
        }

        .nav-link {
            color: var(--color-text-secondary);
            font-size: 0.95rem;
            font-weight: 500;
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            white-space: nowrap;
            position: relative;
            transition: color var(--transition-base), background-color var(--transition-base);
        }

        .nav-link::after {
            content: '';
            position: absolute;
            left: 12px;
            right: 12px;
            bottom: 4px;
            height: 1px;
            background-color: var(--color-accent);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition-base);
        }

        .nav-link:hover {
            color: var(--color-text-primary);
            background-color: rgba(255, 255, 255, 0.04);
        }

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

        .nav-link.active {
            color: var(--color-accent-bright);
            background-color: rgba(124, 58, 237, 0.12);
        }

        .nav-cta {
            background-color: var(--color-accent);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            padding: 8px 16px;
            border-radius: 9999px;
            transition: background-color var(--transition-base), transform var(--transition-base);
        }

        .nav-cta:hover {
            background-color: #6D28D9;
            transform: translateY(-1px);
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--color-border);
            color: var(--color-text-primary);
            font-size: 1.3rem;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: border-color var(--transition-base), background-color var(--transition-base);
        }

        .nav-toggle:hover {
            border-color: var(--color-accent);
            background-color: rgba(124, 58, 237, 0.1);
        }

        .mobile-menu {
            display: none;
            padding: 16px 0 20px;
            border-top: 1px solid var(--color-border);
            flex-direction: column;
            gap: 6px;
        }

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

        .mobile-menu .nav-link {
            display: block;
            padding: 10px 12px;
        }

        /* Breadcrumb */
        .breadcrumb {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            padding: 16px 0 8px;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

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

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

        .breadcrumb .sep {
            color: var(--color-text-muted);
            opacity: 0.6;
        }

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

        /* Category Hero (compact) */
        .category-hero {
            padding: 48px 0 40px;
            background: linear-gradient(135deg, rgba(124, 58, 237, 0.08) 0%, rgba(11, 13, 16, 0) 55%);
            border-bottom: 1px solid var(--color-border);
        }

        .category-hero .hero-eyebrow {
            display: inline-block;
            background-color: rgba(124, 58, 237, 0.15);
            border: 1px solid rgba(124, 58, 237, 0.35);
            color: var(--color-accent-bright);
            font-size: 0.85rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 9999px;
            margin-bottom: 16px;
        }

        .category-hero h1 {
            font-size: 2.75rem;
            font-weight: 800;
            line-height: 1.25;
            color: var(--color-text-primary);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .category-hero .hero-sub {
            font-size: 1.1rem;
            color: var(--color-text-secondary);
            max-width: 680px;
            line-height: 1.8;
            margin-bottom: 0;
        }

        /* Section base */
        .section {
            padding: var(--space-section) 0;
        }

        .section-alt {
            background-color: var(--color-bg-deep);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }

        .section-title {
            font-size: 1.9rem;
            font-weight: 700;
            color: var(--color-text-primary);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .section-lead {
            font-size: 1.05rem;
            color: var(--color-text-secondary);
            max-width: 720px;
            line-height: 1.8;
            margin-bottom: 32px;
        }

        .section-title-group {
            margin-bottom: 40px;
        }

        .section-title-group .title-tag {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--color-accent-gold);
            text-transform: uppercase;
            margin-bottom: 10px;
        }

        /* List cards */
        .status-list {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .status-card {
            display: flex;
            gap: 24px;
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
        }

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

        .status-card .card-img-wrap {
            flex-shrink: 0;
            width: 280px;
            min-height: 200px;
            position: relative;
            overflow: hidden;
        }

        .status-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            top: 0;
            left: 0;
        }

        .status-card .card-body {
            padding: 22px 24px 20px 0;
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .status-card .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 10px;
        }

        .status-card .card-date {
            font-size: 0.85rem;
            color: var(--color-text-muted);
        }

        .status-card .card-tag {
            font-size: 0.75rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 9999px;
            background-color: rgba(212, 175, 55, 0.12);
            border: 1px solid rgba(212, 175, 55, 0.3);
            color: var(--color-accent-gold);
        }

        .status-card .card-tag.violet {
            background-color: rgba(124, 58, 237, 0.12);
            border-color: rgba(124, 58, 237, 0.3);
            color: var(--color-accent-bright);
        }

        .status-card .card-tag.green {
            background-color: rgba(0, 229, 160, 0.1);
            border-color: rgba(0, 229, 160, 0.25);
            color: var(--color-accent-green);
        }

        .status-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--color-text-primary);
            margin-bottom: 8px;
            line-height: 1.45;
        }

        .status-card p {
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            line-height: 1.75;
            margin-bottom: 14px;
        }

        .status-card .read-more {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-accent-bright);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color var(--transition-base), gap var(--transition-base);
        }

        .status-card .read-more:hover {
            color: #fff;
            gap: 10px;
        }

        /* Team status panel */
        .team-status-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
            gap: 16px;
        }

        .team-status-item {
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 20px;
            transition: border-color var(--transition-base), transform var(--transition-base);
        }

        .team-status-item:hover {
            border-color: var(--color-border-hover);
            transform: translateY(-2px);
        }

        .team-status-item .team-name {
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-text-primary);
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .team-status-item .team-status-badge {
            font-size: 0.75rem;
            padding: 2px 8px;
            border-radius: 9999px;
            font-weight: 600;
        }

        .badge-up {
            background-color: rgba(0, 229, 160, 0.12);
            color: var(--color-accent-green);
            border: 1px solid rgba(0, 229, 160, 0.25);
        }

        .badge-watch {
            background-color: rgba(212, 175, 55, 0.12);
            color: var(--color-accent-gold);
            border: 1px solid rgba(212, 175, 55, 0.3);
        }

        .badge-down {
            background-color: rgba(239, 68, 68, 0.12);
            color: #F87171;
            border: 1px solid rgba(239, 68, 68, 0.25);
        }

        .team-status-item .team-detail {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            line-height: 1.6;
        }

        .team-status-item .team-stat {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--color-accent-gold);
            margin: 8px 0 4px;
        }

        .team-status-item .team-stat-label {
            font-size: 0.75rem;
            color: var(--color-text-muted);
        }

        /* Rotation tracker */
        .rotation-tracker {
            display: flex;
            align-items: stretch;
            gap: 0;
            overflow-x: auto;
            padding-bottom: 8px;
        }

        .rotation-step {
            flex: 1;
            min-width: 180px;
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 20px;
            position: relative;
            transition: border-color var(--transition-base);
        }

        .rotation-step:hover {
            border-color: var(--color-border-hover);
        }

        .rotation-step:not(:last-child)::after {
            content: '\f061';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            right: -13px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--color-accent-gold);
            font-size: 0.8rem;
            z-index: 1;
        }

        .rotation-step .step-num {
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--color-accent-gold);
            letter-spacing: 0.08em;
            margin-bottom: 8px;
        }

        .rotation-step .step-title {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--color-text-primary);
            margin-bottom: 6px;
        }

        .rotation-step .step-desc {
            font-size: 0.82rem;
            color: var(--color-text-muted);
            line-height: 1.6;
        }

        /* Data snapshot */
        .data-snapshot-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .data-snap-card {
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            text-align: center;
            transition: border-color var(--transition-base), transform var(--transition-base);
        }

        .data-snap-card:hover {
            border-color: var(--color-border-hover);
            transform: translateY(-2px);
        }

        .data-snap-card .snap-icon {
            font-size: 1.6rem;
            color: var(--color-accent-gold);
            margin-bottom: 10px;
        }

        .data-snap-card .snap-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-text-primary);
            margin-bottom: 4px;
            letter-spacing: -0.01em;
        }

        .data-snap-card .snap-label {
            font-size: 0.82rem;
            color: var(--color-text-muted);
        }

        /* Subscribe CTA */
        .subscribe-cta {
            background: linear-gradient(135deg, rgba(124, 58, 237, 0.18) 0%, rgba(11, 13, 16, 0.9) 60%, rgba(11, 13, 16, 1) 100%);
            border: 1px solid rgba(124, 58, 237, 0.25);
            border-radius: var(--radius-lg);
            padding: 40px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 28px;
            flex-wrap: wrap;
        }

        .subscribe-cta .cta-text h2 {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--color-text-primary);
            margin-bottom: 8px;
        }

        .subscribe-cta .cta-text p {
            color: var(--color-text-secondary);
            margin-bottom: 0;
            font-size: 0.95rem;
        }

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

        .subscribe-form input {
            background-color: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            padding: 10px 16px;
            color: var(--color-text-primary);
            font-size: 0.95rem;
            min-width: 240px;
            transition: border-color var(--transition-base);
        }

        .subscribe-form input::placeholder {
            color: var(--color-text-muted);
        }

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

        .subscribe-form button {
            background-color: var(--color-accent);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            padding: 10px 22px;
            border: none;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: background-color var(--transition-base), transform var(--transition-base);
            white-space: nowrap;
        }

        .subscribe-form button:hover {
            background-color: #6D28D9;
            transform: translateY(-1px);
        }

        /* Editor picks */
        .editor-picks {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .editor-pick-card {
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: transform var(--transition-base), border-color var(--transition-base);
        }

        .editor-pick-card:hover {
            transform: translateY(-3px);
            border-color: var(--color-border-hover);
        }

        .editor-pick-card .pick-img {
            height: 160px;
            overflow: hidden;
        }

        .editor-pick-card .pick-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-base);
        }

        .editor-pick-card:hover .pick-img img {
            transform: scale(1.05);
        }

        .editor-pick-card .pick-body {
            padding: 16px 18px;
        }

        .editor-pick-card .pick-tag {
            font-size: 0.7rem;
            font-weight: 600;
            padding: 2px 8px;
            border-radius: 9999px;
            background-color: rgba(124, 58, 237, 0.12);
            color: var(--color-accent-bright);
            border: 1px solid rgba(124, 58, 237, 0.25);
            display: inline-block;
            margin-bottom: 8px;
        }

        .editor-pick-card h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-text-primary);
            margin-bottom: 6px;
            line-height: 1.5;
        }

        .editor-pick-card p {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* Footer */
        .site-footer {
            background-color: var(--color-bg-deep);
            border-top: 1px solid var(--color-border);
            padding: 48px 0 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 36px;
        }

        .footer-brand {
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--color-text-primary);
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
        }

        .footer-brand .logo-icon {
            width: 28px;
            height: 28px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--color-accent), #5B21B6);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: #fff;
            flex-shrink: 0;
        }

        .footer-desc {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            line-height: 1.7;
            margin-bottom: 12px;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--color-text-primary);
            margin-bottom: 14px;
        }

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

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

        .footer-col ul li a {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            transition: color var(--transition-base);
        }

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            border-top: 1px solid var(--color-border);
            padding-top: 20px;
            font-size: 0.82rem;
            color: var(--color-text-muted);
        }

        .footer-bottom a {
            color: var(--color-text-muted);
            transition: color var(--transition-base);
        }

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

        /* Responsive */
        @media (max-width: 1024px) {
            .data-snapshot-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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

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

        @media (max-width: 768px) {
            .nav-group {
                display: none;
            }

            .nav-toggle {
                display: inline-flex;
                align-items: center;
                justify-content: center;
            }

            .nav-inner {
                justify-content: space-between;
            }

            .category-hero h1 {
                font-size: 2rem;
            }

            .status-card {
                flex-direction: column;
            }

            .status-card .card-img-wrap {
                width: 100%;
                min-height: 180px;
                height: 180px;
            }

            .status-card .card-body {
                padding: 16px 18px 20px;
            }

            .section-title {
                font-size: 1.5rem;
            }

            .editor-picks {
                grid-template-columns: 1fr;
            }

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

            .subscribe-form {
                width: 100%;
            }

            .subscribe-form input {
                min-width: 0;
                flex: 1;
            }

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

            .data-snapshot-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

            .data-snap-card .snap-number {
                font-size: 1.5rem;
            }
        }

        @media (max-width: 520px) {
            .category-hero {
                padding: 32px 0 28px;
            }

            .category-hero h1 {
                font-size: 1.6rem;
            }

            .category-hero .hero-sub {
                font-size: 0.95rem;
            }

            .status-card .card-img-wrap {
                min-height: 150px;
                height: 150px;
            }

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

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

            .subscribe-form input {
                width: 100%;
                min-width: 0;
            }

            .subscribe-form button {
                width: 100%;
            }

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

        @media (prefers-reduced-motion: reduce) {
            html {
                scroll-behavior: auto;
            }

            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }
        }

/* roulang page: category5 */
:root {
        --color-bg-dark: #0B0D10;
        --color-bg-deep: #15181E;
        --color-surface: #1A1E26;
        --color-surface-light: #242A35;
        --color-border: rgba(255, 255, 255, 0.08);
        --color-border-hover: rgba(212, 175, 55, 0.55);
        --color-accent: #D4AF37;
        --color-accent-bright: #F0D060;
        --color-accent-glow: rgba(212, 175, 55, 0.35);
        --color-accent-green: #00E5A0;
        --color-accent-purple: #7C3AED;
        --color-text-primary: #F5F7FA;
        --color-text-secondary: #C0C4CC;
        --color-text-muted: #8E96A3;
        --color-text-on-accent: #1A1A1A;
        --radius-sm: 8px;
        --radius-md: 12px;
        --radius-lg: 16px;
        --radius-xl: 20px;
        --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.25);
        --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.4);
        --space-section: 80px;
        --transition-fast: 0.2s ease;
        --transition-base: 0.3s ease;
        --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Inter', 'Roboto', system-ui, -apple-system, sans-serif;
    }

    @media (max-width: 639px) {
        :root {
            --space-section: 48px;
        }
    }

    * {
        box-sizing: border-box;
    }

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

    body {
        font-family: var(--font-sans);
        background-color: var(--color-bg-dark);
        color: var(--color-text-primary);
        line-height: 1.7;
        font-size: 16px;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
        overflow-x: hidden;
        margin: 0;
        padding: 0;
    }

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

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

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

    button,
    input {
        font-family: inherit;
    }

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

    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 20px;
    }

    /* Header / Navigation */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 100;
        background-color: rgba(11, 13, 16, 0.92);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        border-bottom: 1px solid var(--color-border);
        transition: background-color var(--transition-base);
    }

    .nav-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        min-height: 68px;
        gap: 16px;
    }

    .nav-group {
        display: flex;
        align-items: center;
        gap: 20px;
        flex: 1;
    }

    .nav-group-left {
        justify-content: flex-start;
    }

    .nav-group-right {
        justify-content: flex-end;
    }

    .nav-logo {
        font-size: 1.5rem;
        font-weight: 800;
        letter-spacing: 0.02em;
        white-space: nowrap;
        color: var(--color-text-primary);
        transition: color var(--transition-base);
        display: flex;
        align-items: center;
        gap: 8px;
    }

    .nav-logo .logo-icon {
        width: 34px;
        height: 34px;
        border-radius: var(--radius-sm);
        background: linear-gradient(135deg, var(--color-accent), #8B6914);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        font-size: 17px;
        color: #1A1A1A;
        flex-shrink: 0;
    }

    .nav-link {
        color: var(--color-text-secondary);
        font-size: 0.95rem;
        font-weight: 500;
        padding: 8px 12px;
        border-radius: var(--radius-sm);
        white-space: nowrap;
        position: relative;
        transition: color var(--transition-base), background-color var(--transition-base);
    }

    .nav-link::after {
        content: '';
        position: absolute;
        left: 12px;
        right: 12px;
        bottom: 4px;
        height: 1px;
        background-color: var(--color-accent);
        transform: scaleX(0);
        transform-origin: left;
        transition: transform var(--transition-base);
    }

    .nav-link:hover {
        color: var(--color-text-primary);
        background-color: rgba(255, 255, 255, 0.04);
    }

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

    .nav-link.active {
        color: var(--color-accent-bright);
        background-color: rgba(212, 175, 55, 0.12);
    }

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

    .nav-cta {
        background-color: var(--color-accent);
        color: #1A1A1A;
        font-weight: 600;
        font-size: 0.9rem;
        padding: 8px 16px;
        border-radius: 9999px;
        transition: background-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
    }

    .nav-cta:hover {
        background-color: #E5C84A;
        transform: translateY(-1px);
        box-shadow: 0 4px 16px rgba(212, 175, 55, 0.3);
    }

    .nav-toggle {
        display: none;
        background: transparent;
        border: 1px solid var(--color-border);
        color: var(--color-text-primary);
        font-size: 1.3rem;
        width: 44px;
        height: 44px;
        border-radius: var(--radius-sm);
        cursor: pointer;
        transition: border-color var(--transition-base), background-color var(--transition-base);
    }

    .nav-toggle:hover {
        border-color: var(--color-border-hover);
        background-color: rgba(255, 255, 255, 0.04);
    }

    .mobile-menu {
        display: none;
        flex-direction: column;
        gap: 4px;
        padding: 16px 0 20px;
        border-top: 1px solid var(--color-border);
    }

    .mobile-menu .nav-link {
        display: block;
        padding: 10px 4px;
        font-size: 1rem;
    }

    .mobile-menu .nav-cta {
        text-align: center;
        margin-top: 12px;
    }

    /* Breadcrumb */
    .breadcrumb {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 0.85rem;
        color: var(--color-text-muted);
        margin-bottom: 16px;
        flex-wrap: wrap;
    }

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

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

    .breadcrumb .separator {
        color: var(--color-text-muted);
        opacity: 0.6;
    }

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

    /* Category Hero */
    .category-hero {
        padding: 48px 0 40px;
        background-color: var(--color-bg-dark);
        border-bottom: 1px solid var(--color-border);
        position: relative;
        overflow: hidden;
    }

    .category-hero::after {
        content: '';
        position: absolute;
        top: -120px;
        right: -120px;
        width: 400px;
        height: 400px;
        background: radial-gradient(circle, rgba(212, 175, 55, 0.12) 0%, transparent 70%);
        pointer-events: none;
    }

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

    .category-hero h1 {
        font-size: 2.5rem;
        font-weight: 800;
        letter-spacing: -0.02em;
        margin-bottom: 12px;
        line-height: 1.3;
        color: var(--color-text-primary);
    }

    .category-hero .hero-desc {
        font-size: 1.05rem;
        color: var(--color-text-secondary);
        max-width: 720px;
        line-height: 1.8;
        margin-bottom: 20px;
    }

    .category-hero .hero-meta-strip {
        display: flex;
        flex-wrap: wrap;
        gap: 24px;
        align-items: center;
    }

    .category-hero .hero-meta-item {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 0.9rem;
        color: var(--color-text-muted);
    }

    .category-hero .hero-meta-item i {
        color: var(--color-accent);
        font-size: 0.95rem;
    }

    /* Section common */
    .section {
        padding: var(--space-section) 0;
    }

    .section-alt {
        background-color: var(--color-bg-deep);
        border-top: 1px solid var(--color-border);
        border-bottom: 1px solid var(--color-border);
    }

    .section-title {
        font-size: 1.85rem;
        font-weight: 700;
        letter-spacing: -0.01em;
        margin-bottom: 8px;
        color: var(--color-text-primary);
    }

    .section-subtitle {
        font-size: 1rem;
        color: var(--color-text-secondary);
        max-width: 640px;
        line-height: 1.8;
        margin-bottom: 32px;
    }

    .section-header {
        margin-bottom: 28px;
    }

    /* Timeline list */
    .timeline-list {
        display: flex;
        flex-direction: column;
        gap: 16px;
    }

    .timeline-item {
        display: flex;
        gap: 20px;
        background-color: var(--color-surface);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-md);
        padding: 20px 24px;
        transition: border-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
        position: relative;
    }

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

    .timeline-date-badge {
        flex-shrink: 0;
        width: 72px;
        text-align: center;
        align-self: flex-start;
        background-color: var(--color-surface-light);
        border-radius: var(--radius-sm);
        padding: 10px 8px;
        border: 1px solid var(--color-border);
    }

    .timeline-date-badge .day {
        font-size: 1.5rem;
        font-weight: 800;
        color: var(--color-accent);
        line-height: 1.2;
    }

    .timeline-date-badge .month {
        font-size: 0.75rem;
        color: var(--color-text-muted);
        text-transform: uppercase;
        letter-spacing: 0.05em;
    }

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

    .timeline-content .item-tag {
        display: inline-block;
        font-size: 0.75rem;
        font-weight: 600;
        padding: 3px 10px;
        border-radius: 9999px;
        background-color: rgba(212, 175, 55, 0.15);
        color: var(--color-accent-bright);
        margin-bottom: 6px;
        letter-spacing: 0.03em;
    }

    .timeline-content .item-tag.tag-delay {
        background-color: rgba(255, 99, 71, 0.15);
        color: #FF7D6B;
    }

    .timeline-content .item-tag.tag-reschedule {
        background-color: rgba(0, 229, 160, 0.15);
        color: var(--color-accent-green);
    }

    .timeline-content h3 {
        font-size: 1.1rem;
        font-weight: 700;
        margin-bottom: 6px;
        color: var(--color-text-primary);
        line-height: 1.5;
    }

    .timeline-content .item-summary {
        font-size: 0.92rem;
        color: var(--color-text-secondary);
        line-height: 1.7;
        margin-bottom: 10px;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .timeline-content .item-meta {
        display: flex;
        flex-wrap: wrap;
        gap: 16px;
        font-size: 0.8rem;
        color: var(--color-text-muted);
    }

    .timeline-content .item-meta i {
        margin-right: 4px;
        color: var(--color-accent);
    }

    .read-more-link {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        font-size: 0.88rem;
        font-weight: 600;
        color: var(--color-accent-bright);
        transition: gap var(--transition-base), color var(--transition-base);
        margin-top: 8px;
    }

    .read-more-link i {
        font-size: 0.75rem;
    }

    .read-more-link:hover {
        color: var(--color-accent);
        gap: 10px;
    }

    /* Featured match cards */
    .featured-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 20px;
    }

    .featured-card {
        background-color: var(--color-surface);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-lg);
        overflow: hidden;
        transition: border-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
        display: flex;
        flex-direction: column;
    }

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

    .featured-card .card-image {
        height: 200px;
        background-size: cover;
        background-position: center;
        position: relative;
    }

    .featured-card .card-image .image-overlay {
        position: absolute;
        inset: 0;
        background: linear-gradient(180deg, rgba(11, 13, 16, 0.1) 0%, rgba(11, 13, 16, 0.8) 100%);
    }

    .featured-card .card-image .match-time {
        position: absolute;
        bottom: 12px;
        left: 16px;
        color: #fff;
        font-size: 0.85rem;
        font-weight: 600;
        display: flex;
        align-items: center;
        gap: 6px;
        z-index: 2;
    }

    .featured-card .card-body {
        padding: 18px 20px 22px;
        display: flex;
        flex-direction: column;
        flex: 1;
    }

    .featured-card .card-body h3 {
        font-size: 1.1rem;
        font-weight: 700;
        margin-bottom: 6px;
        color: var(--color-text-primary);
    }

    .featured-card .card-body .match-teams {
        font-size: 0.9rem;
        color: var(--color-accent-bright);
        font-weight: 600;
        margin-bottom: 8px;
        display: flex;
        align-items: center;
        gap: 8px;
    }

    .featured-card .card-body .match-teams .vs {
        color: var(--color-text-muted);
        font-weight: 400;
        font-size: 0.8rem;
    }

    .featured-card .card-body p {
        font-size: 0.9rem;
        color: var(--color-text-secondary);
        line-height: 1.7;
        margin-bottom: 12px;
        flex: 1;
    }

    /* Stats strip */
    .stats-strip {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 20px;
    }

    .stat-block {
        background-color: var(--color-surface);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-md);
        padding: 24px 20px;
        text-align: center;
        transition: border-color var(--transition-base), transform var(--transition-base);
    }

    .stat-block:hover {
        border-color: var(--color-border-hover);
        transform: translateY(-2px);
    }

    .stat-number {
        font-size: 2.4rem;
        font-weight: 800;
        color: var(--color-accent);
        line-height: 1.2;
        letter-spacing: -0.02em;
    }

    .stat-number .stat-unit {
        font-size: 1rem;
        font-weight: 600;
        color: var(--color-text-muted);
        margin-left: 2px;
    }

    .stat-label {
        font-size: 0.88rem;
        color: var(--color-text-secondary);
        margin-top: 6px;
    }

    /* Version impact */
    .version-impact {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 40px;
        align-items: center;
    }

    .version-impact .impact-text h3 {
        font-size: 1.4rem;
        font-weight: 700;
        margin-bottom: 12px;
        color: var(--color-text-primary);
    }

    .version-impact .impact-text p {
        font-size: 1rem;
        color: var(--color-text-secondary);
        line-height: 1.9;
        margin-bottom: 16px;
    }

    .version-impact .impact-text .impact-list {
        display: flex;
        flex-direction: column;
        gap: 10px;
    }

    .version-impact .impact-text .impact-list li {
        display: flex;
        align-items: flex-start;
        gap: 10px;
        font-size: 0.95rem;
        color: var(--color-text-secondary);
        line-height: 1.7;
    }

    .version-impact .impact-text .impact-list li i {
        color: var(--color-accent);
        margin-top: 5px;
        font-size: 0.8rem;
    }

    .version-impact .impact-image {
        border-radius: var(--radius-lg);
        overflow: hidden;
        border: 1px solid var(--color-border);
        min-height: 320px;
        background-size: cover;
        background-position: center;
        position: relative;
    }

    .version-impact .impact-image::after {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(135deg, rgba(212, 175, 55, 0.1) 0%, transparent 60%);
        pointer-events: none;
    }

    /* FAQ */
    .faq-list {
        display: flex;
        flex-direction: column;
        gap: 12px;
        max-width: 820px;
    }

    .faq-item {
        background-color: var(--color-surface);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-md);
        overflow: hidden;
        transition: border-color var(--transition-base);
    }

    .faq-item:hover {
        border-color: rgba(212, 175, 55, 0.3);
    }

    .faq-question {
        width: 100%;
        background: none;
        border: none;
        color: var(--color-text-primary);
        font-size: 1rem;
        font-weight: 600;
        padding: 18px 20px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        cursor: pointer;
        text-align: left;
        transition: color var(--transition-base);
    }

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

    .faq-question .faq-icon {
        flex-shrink: 0;
        width: 28px;
        height: 28px;
        border-radius: 50%;
        background-color: var(--color-surface-light);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 0.8rem;
        transition: transform var(--transition-base), background-color var(--transition-base);
        color: var(--color-accent);
    }

    .faq-item.open .faq-question .faq-icon {
        transform: rotate(180deg);
        background-color: rgba(212, 175, 55, 0.2);
    }

    .faq-answer {
        max-height: 0;
        overflow: hidden;
        transition: max-height var(--transition-base), padding var(--transition-base);
        padding: 0 20px;
    }

    .faq-item.open .faq-answer {
        max-height: 400px;
        padding: 0 20px 18px;
    }

    .faq-answer p {
        font-size: 0.92rem;
        color: var(--color-text-secondary);
        line-height: 1.8;
        margin: 0;
    }

    /* Subscribe CTA */
    .subscribe-cta {
        background-color: var(--color-bg-deep);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-xl);
        padding: 48px 40px;
        text-align: center;
        position: relative;
        overflow: hidden;
    }

    .subscribe-cta::before {
        content: '';
        position: absolute;
        top: -200px;
        left: 50%;
        transform: translateX(-50%);
        width: 600px;
        height: 400px;
        background: radial-gradient(circle, rgba(212, 175, 55, 0.15) 0%, transparent 70%);
        pointer-events: none;
    }

    .subscribe-cta h2 {
        font-size: 1.8rem;
        font-weight: 800;
        letter-spacing: -0.01em;
        margin-bottom: 10px;
        color: var(--color-text-primary);
        position: relative;
        z-index: 1;
    }

    .subscribe-cta p {
        font-size: 1rem;
        color: var(--color-text-secondary);
        max-width: 520px;
        margin: 0 auto 24px;
        line-height: 1.8;
        position: relative;
        z-index: 1;
    }

    .subscribe-cta .cta-form {
        display: flex;
        gap: 12px;
        max-width: 440px;
        margin: 0 auto;
        position: relative;
        z-index: 1;
    }

    .subscribe-cta .cta-form input {
        flex: 1;
        background-color: var(--color-surface);
        border: 1px solid var(--color-border);
        border-radius: var(--radius-sm);
        padding: 12px 16px;
        color: var(--color-text-primary);
        font-size: 0.95rem;
        transition: border-color var(--transition-base);
    }

    .subscribe-cta .cta-form input::placeholder {
        color: var(--color-text-muted);
    }

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

    .cta-btn {
        background-color: var(--color-accent);
        color: #1A1A1A;
        font-weight: 700;
        font-size: 0.95rem;
        padding: 12px 24px;
        border-radius: var(--radius-sm);
        border: none;
        cursor: pointer;
        white-space: nowrap;
        transition: background-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
    }

    .cta-btn:hover {
        background-color: #E5C84A;
        transform: translateY(-1px);
        box-shadow: 0 6px 20px rgba(212, 175, 55, 0.3);
    }

    .cta-btn:active {
        transform: scale(0.97);
    }

    /* Footer */
    .site-footer {
        background-color: var(--color-bg-deep);
        border-top: 1px solid var(--color-border);
        padding: 56px 0 28px;
        color: var(--color-text-secondary);
    }

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

    .footer-brand {
        font-size: 1.3rem;
        font-weight: 800;
        letter-spacing: 0.02em;
        color: var(--color-text-primary);
        display: flex;
        align-items: center;
        gap: 8px;
        margin-bottom: 14px;
    }

    .footer-brand .logo-icon {
        width: 30px;
        height: 30px;
        border-radius: var(--radius-sm);
        background: linear-gradient(135deg, var(--color-accent), #8B6914);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        font-size: 14px;
        color: #1A1A1A;
    }

    .footer-desc {
        font-size: 0.88rem;
        line-height: 1.8;
        color: var(--color-text-muted);
        margin-bottom: 12px;
        max-width: 320px;
    }

    .footer-col h4 {
        font-size: 0.95rem;
        font-weight: 700;
        color: var(--color-text-primary);
        margin-bottom: 14px;
        letter-spacing: 0.03em;
    }

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

    .footer-col ul a {
        font-size: 0.88rem;
        color: var(--color-text-muted);
        transition: color var(--transition-base);
    }

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

    .footer-bottom {
        border-top: 1px solid var(--color-border);
        padding-top: 20px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 12px;
        font-size: 0.82rem;
        color: var(--color-text-muted);
    }

    .footer-bottom a {
        color: var(--color-text-muted);
        transition: color var(--transition-base);
    }

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

    /* Scroll reveal */
    .reveal-on-scroll {
        opacity: 0;
        transform: translateY(24px);
        transition: opacity 0.6s ease, transform 0.6s ease;
    }

    .reveal-on-scroll.revealed {
        opacity: 1;
        transform: translateY(0);
    }

    @media (prefers-reduced-motion: reduce) {
        html {
            scroll-behavior: auto;
        }
        .reveal-on-scroll {
            opacity: 1;
            transform: none;
            transition: none;
        }
        .timeline-item,
        .featured-card,
        .stat-block,
        .nav-cta,
        .cta-btn,
        .faq-question .faq-icon {
            transition: none;
        }
    }

    /* Responsive */
    @media (max-width: 1024px) {
        .nav-group {
            gap: 12px;
        }
        .nav-link {
            padding: 8px 8px;
            font-size: 0.88rem;
        }
        .nav-logo {
            font-size: 1.3rem;
        }
    }

    @media (max-width: 768px) {
        .nav-group {
            display: none;
        }
        .nav-toggle {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .mobile-menu.open {
            display: flex;
        }
        .nav-inner {
            min-height: 60px;
        }
        .category-hero h1 {
            font-size: 1.9rem;
        }
        .category-hero .hero-desc {
            font-size: 0.95rem;
        }
        .section-title {
            font-size: 1.5rem;
        }
        .timeline-item {
            flex-direction: column;
            gap: 12px;
            padding: 16px;
        }
        .timeline-date-badge {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }
        .timeline-date-badge .day {
            font-size: 1.2rem;
        }
        .version-impact {
            grid-template-columns: 1fr;
            gap: 24px;
        }
        .version-impact .impact-image {
            min-height: 220px;
        }
        .footer-grid {
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        .subscribe-cta {
            padding: 32px 20px;
        }
        .subscribe-cta h2 {
            font-size: 1.4rem;
        }
        .subscribe-cta .cta-form {
            flex-direction: column;
        }
    }

    @media (max-width: 520px) {
        .container {
            padding: 0 16px;
        }
        .category-hero h1 {
            font-size: 1.6rem;
        }
        .category-hero .hero-meta-strip {
            gap: 14px;
        }
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 24px;
        }
        .footer-bottom {
            flex-direction: column;
            text-align: center;
        }
        .timeline-content h3 {
            font-size: 1rem;
        }
        .stats-strip {
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
        }
        .stat-number {
            font-size: 1.8rem;
        }
        .featured-grid {
            grid-template-columns: 1fr;
        }
    }

/* roulang page: category6 */
:root {
            --color-bg-dark: #0B0D10;
            --color-bg-deep: #15181E;
            --color-surface: #1A1E26;
            --color-surface-light: #242A35;
            --color-border: rgba(255, 255, 255, 0.08);
            --color-border-hover: rgba(124, 58, 237, 0.55);
            --color-accent: #7C3AED;
            --color-accent-bright: #A78BFA;
            --color-accent-glow: rgba(124, 58, 237, 0.35);
            --color-accent-green: #00E5A0;
            --color-accent-gold: #D4AF37;
            --color-text-primary: #F5F7FA;
            --color-text-secondary: #C0C4CC;
            --color-text-muted: #8E96A3;
            --color-text-on-accent: #FFFFFF;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.25);
            --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.4);
            --space-section: 80px;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Inter', 'Roboto', system-ui, -apple-system, sans-serif;
        }
        @media (max-width: 640px) {
            :root {
                --space-section: 48px;
            }
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg-dark);
            color: var(--color-text-primary);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base), border-color var(--transition-base), background-color var(--transition-base);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--color-accent-bright);
            outline-offset: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input {
            font-family: inherit;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: rgba(11, 13, 16, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border);
            transition: background-color var(--transition-base);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            gap: 16px;
        }
        .nav-group {
            display: flex;
            align-items: center;
            gap: 20px;
            flex: 1;
        }
        .nav-group-left {
            justify-content: flex-start;
        }
        .nav-group-right {
            justify-content: flex-end;
        }
        .nav-logo {
            font-size: 1.5rem;
            font-weight: 800;
            letter-spacing: 0.02em;
            white-space: nowrap;
            color: var(--color-text-primary);
            transition: color var(--transition-base);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-logo .logo-icon {
            width: 34px;
            height: 34px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--color-accent), #5B21B6);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            color: #fff;
            flex-shrink: 0;
        }
        .nav-link {
            color: var(--color-text-secondary);
            font-size: 0.95rem;
            font-weight: 500;
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            white-space: nowrap;
            position: relative;
            transition: color var(--transition-base), background-color var(--transition-base);
        }
        .nav-link::after {
            content: '';
            position: absolute;
            left: 12px;
            right: 12px;
            bottom: 4px;
            height: 1px;
            background-color: var(--color-accent);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition-base);
        }
        .nav-link:hover {
            color: var(--color-text-primary);
            background-color: rgba(255, 255, 255, 0.04);
        }
        .nav-link:hover::after {
            transform: scaleX(1);
        }
        .nav-link.active {
            color: var(--color-accent-bright);
            background-color: rgba(124, 58, 237, 0.12);
        }
        .nav-link.active::after {
            transform: scaleX(1);
        }
        .nav-cta {
            background-color: var(--color-accent);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            padding: 8px 16px;
            border-radius: 9999px;
            transition: background-color var(--transition-base), transform var(--transition-base);
            white-space: nowrap;
        }
        .nav-cta:hover {
            background-color: #6D28D9;
            transform: translateY(-1px);
        }
        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--color-border);
            color: var(--color-text-primary);
            font-size: 1.3rem;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: border-color var(--transition-base), background-color var(--transition-base);
        }
        .nav-toggle:hover {
            border-color: var(--color-border-hover);
            background-color: rgba(255, 255, 255, 0.04);
        }
        .mobile-menu {
            display: none;
            flex-direction: column;
            gap: 4px;
            padding: 12px 0 16px;
            border-top: 1px solid var(--color-border);
        }
        .mobile-menu .nav-link,
        .mobile-menu .nav-cta {
            display: block;
            width: 100%;
            text-align: left;
            padding: 10px 12px;
            border-radius: var(--radius-sm);
        }
        .mobile-menu.open {
            display: flex;
        }
        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            font-size: 0.85rem;
            color: var(--color-text-muted);
            padding: 20px 0 0;
        }
        .breadcrumb a {
            color: var(--color-text-secondary);
            transition: color var(--transition-base);
        }
        .breadcrumb a:hover {
            color: var(--color-accent-bright);
        }
        .breadcrumb .sep {
            color: var(--color-text-muted);
            opacity: 0.6;
        }
        .breadcrumb .current {
            color: var(--color-accent-bright);
            font-weight: 500;
        }
        /* Category Hero */
        .category-hero {
            padding: 48px 0 40px;
            background: linear-gradient(180deg, rgba(124, 58, 237, 0.06) 0%, transparent 100%);
            border-bottom: 1px solid var(--color-border);
        }
        .category-hero h1 {
            font-size: 2.5rem;
            font-weight: 800;
            letter-spacing: -0.01em;
            color: var(--color-text-primary);
            margin: 12px 0 16px;
            line-height: 1.25;
        }
        .category-hero .hero-desc {
            font-size: 1.05rem;
            color: var(--color-text-secondary);
            max-width: 720px;
            line-height: 1.8;
        }
        /* Section Base */
        section {
            padding: var(--space-section) 0;
        }
        .section-header {
            margin-bottom: 36px;
        }
        .section-header h2 {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--color-text-primary);
            letter-spacing: -0.01em;
            margin-bottom: 8px;
        }
        .section-header p {
            color: var(--color-text-muted);
            font-size: 0.95rem;
            max-width: 640px;
        }
        /* Featured News */
        .featured-news {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
            min-height: 380px;
            display: flex;
            align-items: flex-end;
        }
        .featured-news:hover {
            border-color: var(--color-border-hover);
            box-shadow: var(--shadow-hover);
        }
        .featured-news .featured-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            z-index: 0;
        }
        .featured-news .featured-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 13, 16, 0.35) 0%, rgba(11, 13, 16, 0.85) 70%, rgba(11, 13, 16, 0.95) 100%);
            z-index: 1;
        }
        .featured-news .featured-content {
            position: relative;
            z-index: 2;
            padding: 40px;
            max-width: 680px;
        }
        .featured-news .badge-featured {
            display: inline-block;
            background-color: var(--color-accent);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 9999px;
            margin-bottom: 12px;
            letter-spacing: 0.04em;
        }
        .featured-news h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-text-primary);
            margin-bottom: 10px;
            line-height: 1.35;
        }
        .featured-news .featured-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            color: var(--color-text-muted);
            font-size: 0.85rem;
            margin-bottom: 12px;
        }
        .featured-news .featured-excerpt {
            color: var(--color-text-secondary);
            font-size: 0.95rem;
            line-height: 1.75;
            margin-bottom: 18px;
        }
        /* News Grid */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .news-card {
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            border-color: var(--color-border-hover);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .news-card .card-img {
            height: 180px;
            overflow: hidden;
            position: relative;
        }
        .news-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-base);
        }
        .news-card:hover .card-img img {
            transform: scale(1.04);
        }
        .news-card .card-img .tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background-color: rgba(11, 13, 16, 0.85);
            color: var(--color-accent-bright);
            font-size: 0.7rem;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 9999px;
            border: 1px solid rgba(124, 58, 237, 0.4);
        }
        .news-card .card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-card .card-date {
            color: var(--color-text-muted);
            font-size: 0.78rem;
            font-weight: 500;
            margin-bottom: 8px;
            letter-spacing: 0.02em;
        }
        .news-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-text-primary);
            line-height: 1.5;
            margin-bottom: 10px;
            letter-spacing: 0.01em;
        }
        .news-card .card-excerpt {
            color: var(--color-text-secondary);
            font-size: 0.88rem;
            line-height: 1.7;
            flex: 1;
            margin-bottom: 16px;
        }
        .news-card .read-more {
            color: var(--color-accent-bright);
            font-size: 0.88rem;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition-fast), color var(--transition-base);
        }
        .news-card .read-more:hover {
            color: var(--color-accent-green);
            gap: 10px;
        }
        /* Data Snapshot */
        .data-snapshot {
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 32px;
        }
        .data-snapshot .snapshot-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-text-primary);
            margin-bottom: 20px;
        }
        .snapshot-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .snapshot-item {
            text-align: center;
            padding: 16px 12px;
            border-radius: var(--radius-md);
            background-color: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--color-border);
        }
        .snapshot-item .num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--color-accent-bright);
            letter-spacing: -0.02em;
            display: block;
            line-height: 1.2;
        }
        .snapshot-item .label {
            font-size: 0.82rem;
            color: var(--color-text-muted);
            margin-top: 6px;
            letter-spacing: 0.02em;
        }
        /* Tags */
        .tags-wrap {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag-pill {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 9999px;
            background-color: var(--color-surface-light);
            color: var(--color-text-secondary);
            font-size: 0.82rem;
            font-weight: 500;
            border: 1px solid var(--color-border);
            transition: border-color var(--transition-base), color var(--transition-base), background-color var(--transition-base);
            cursor: default;
        }
        .tag-pill:hover {
            border-color: var(--color-accent);
            color: var(--color-accent-bright);
            background-color: rgba(124, 58, 237, 0.08);
        }
        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border-color var(--transition-base);
        }
        .faq-item:hover {
            border-color: var(--color-border-hover);
        }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            color: var(--color-text-primary);
            font-size: 0.98rem;
            font-weight: 700;
            padding: 18px 20px;
            text-align: left;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            letter-spacing: 0.01em;
        }
        .faq-question .faq-icon {
            font-size: 0.8rem;
            color: var(--color-accent-bright);
            transition: transform var(--transition-base);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base);
        }
        .faq-item.open .faq-answer {
            max-height: 600px;
        }
        .faq-answer-inner {
            padding: 0 20px 20px;
            color: var(--color-text-secondary);
            font-size: 0.92rem;
            line-height: 1.75;
        }
        /* Subscribe CTA */
        .subscribe-section {
            background-color: var(--color-bg-deep);
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
        }
        .subscribe-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }
        .subscribe-text h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--color-text-primary);
            margin-bottom: 8px;
            letter-spacing: -0.01em;
        }
        .subscribe-text p {
            color: var(--color-text-muted);
            font-size: 0.92rem;
            max-width: 480px;
        }
        .subscribe-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .subscribe-form input {
            min-width: 260px;
            padding: 12px 16px;
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
            background-color: var(--color-surface);
            color: var(--color-text-primary);
            font-size: 0.92rem;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }
        .subscribe-form input::placeholder {
            color: var(--color-text-muted);
        }
        .subscribe-form input:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px var(--color-accent-glow);
            outline: none;
        }
        .subscribe-form button {
            padding: 12px 24px;
            border-radius: var(--radius-md);
            background-color: var(--color-accent);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            border: none;
            cursor: pointer;
            transition: background-color var(--transition-base), transform var(--transition-base);
        }
        .subscribe-form button:hover {
            background-color: #6D28D9;
            transform: translateY(-1px);
        }
        .subscribe-form button:active {
            transform: scale(0.97);
        }
        /* Footer */
        .site-footer {
            background-color: var(--color-bg-deep);
            border-top: 1px solid var(--color-border);
            padding: 48px 0 32px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--color-text-primary);
            margin-bottom: 12px;
        }
        .footer-brand .logo-icon {
            width: 32px;
            height: 32px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--color-accent), #5B21B6);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            color: #fff;
        }
        .footer-desc {
            color: var(--color-text-muted);
            font-size: 0.88rem;
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .footer-col h4 {
            color: var(--color-text-primary);
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: var(--color-text-muted);
            font-size: 0.88rem;
            transition: color var(--transition-base);
        }
        .footer-col ul li a:hover {
            color: var(--color-accent-bright);
        }
        .footer-bottom {
            border-top: 1px solid var(--color-border);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            color: var(--color-text-muted);
            font-size: 0.82rem;
        }
        .footer-bottom a {
            color: var(--color-text-muted);
            transition: color var(--transition-base);
        }
        .footer-bottom a:hover {
            color: var(--color-accent-bright);
        }
        /* Animations */
        .fade-up {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .snapshot-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 768px) {
            .nav-group {
                display: none;
            }
            .nav-inner {
                justify-content: space-between;
            }
            .nav-toggle {
                display: flex;
                align-items: center;
                justify-content: center;
            }
            .nav-logo {
                font-size: 1.25rem;
            }
            .category-hero h1 {
                font-size: 1.8rem;
            }
            .featured-news .featured-content {
                padding: 24px;
            }
            .featured-news h3 {
                font-size: 1.2rem;
            }
            .news-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .subscribe-inner {
                flex-direction: column;
                align-items: flex-start;
            }
            .subscribe-form {
                width: 100%;
            }
            .subscribe-form input {
                flex: 1;
                min-width: 0;
                width: 100%;
            }
            .subscribe-form button {
                width: 100%;
            }
        }
        @media (max-width: 640px) {
            .snapshot-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .snapshot-item .num {
                font-size: 1.6rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .category-hero {
                padding: 32px 0 28px;
            }
            .category-hero h1 {
                font-size: 1.5rem;
            }
            .section-header h2 {
                font-size: 1.35rem;
            }
        }
        @media (prefers-reduced-motion: reduce) {
            html {
                scroll-behavior: auto;
            }
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }
            .fade-up {
                opacity: 1;
                transform: none;
                transition: none;
            }
        }