/* roulang page: index */
/* ===== Design Variables ===== */
        :root {
            --primary: #e87a00;
            --primary-dark: #c46600;
            --primary-light: #ffa64d;
            --secondary: #1a0a2e;
            --bg-dark: #0d0015;
            --bg-card: #1a0a2e;
            --bg-section: #12001e;
            --bg-light: #1f0f35;
            --text-light: #ffffff;
            --text-muted: #b0a0c0;
            --text-dark: #1a1a2e;
            --border-color: rgba(232, 122, 0, 0.2);
            --border-light: rgba(255, 255, 255, 0.06);
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
            --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.3);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Roboto, sans-serif;
            --container-max: 1200px;
            --header-h: 72px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-light);
            background: var(--bg-dark);
            overflow-x: hidden;
        }

        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 4px;
            border-radius: 4px;
        }

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

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

        ul,
        ol {
            list-style: none;
        }

        /* ===== Container ===== */
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Typography ===== */
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-light);
        }

        h1 {
            font-size: clamp(2.2rem, 5vw, 3.8rem);
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: clamp(1.8rem, 3.5vw, 2.8rem);
            letter-spacing: -0.01em;
        }
        h3 {
            font-size: clamp(1.3rem, 2.5vw, 1.8rem);
        }
        h4 {
            font-size: 1.2rem;
        }
        h5 {
            font-size: 1.05rem;
        }

        p {
            margin-bottom: 1rem;
            color: var(--text-muted);
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--primary);
            background: rgba(232, 122, 0, 0.12);
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 12px;
        }

        .section-title {
            margin-bottom: 16px;
        }

        .section-desc {
            max-width: 640px;
            font-size: 1.1rem;
            color: var(--text-muted);
            margin-bottom: 40px;
        }

        /* ===== Header / Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-h);
            background: rgba(13, 0, 21, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }

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

        .logo {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-light);
            letter-spacing: -0.02em;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: #fff;
            font-weight: 900;
        }
        .logo span {
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-list a {
            padding: 8px 18px;
            border-radius: 8px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: var(--transition);
            position: relative;
        }
        .nav-list a:hover {
            color: var(--text-light);
            background: rgba(255, 255, 255, 0.06);
        }
        .nav-list a.active {
            color: var(--text-light);
            background: rgba(232, 122, 0, 0.15);
        }
        .nav-list a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
        }

        .nav-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark)) !important;
            color: #fff !important;
            padding: 10px 24px !important;
            border-radius: 8px !important;
            font-weight: 600 !important;
        }
        .nav-cta:hover {
            transform: translateY(-1px);
            box-shadow: 0 4px 20px rgba(232, 122, 0, 0.35) !important;
            color: #fff !important;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 4px;
            background: none;
            border: none;
        }
        .hamburger span {
            width: 26px;
            height: 2.5px;
            background: var(--text-light);
            border-radius: 2px;
            transition: var(--transition);
        }

        /* ===== Hero Section ===== */
        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            position: relative;
            padding-top: var(--header-h);
            background: var(--bg-dark);
            overflow: hidden;
        }

        .hero .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.3;
            z-index: 0;
            filter: saturate(1.2) brightness(0.6);
        }

        .hero .hero-overlay {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(232, 122, 0, 0.15) 0%, transparent 70%),
                linear-gradient(180deg, rgba(13, 0, 21, 0.4) 0%, var(--bg-dark) 100%);
            z-index: 1;
        }

        .hero .container {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
            padding-top: 40px;
            padding-bottom: 80px;
        }

        .hero-content h1 {
            margin-bottom: 20px;
            background: linear-gradient(135deg, #fff 40%, var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-content p {
            font-size: 1.15rem;
            color: var(--text-muted);
            max-width: 480px;
            margin-bottom: 32px;
        }

        .hero-buttons {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 10px;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            border: none;
            cursor: pointer;
            text-decoration: none;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            box-shadow: 0 4px 20px rgba(232, 122, 0, 0.25);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(232, 122, 0, 0.4);
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            border: 2px solid rgba(255, 255, 255, 0.15);
            color: var(--text-light);
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary-light);
            background: rgba(232, 122, 0, 0.08);
            transform: translateY(-2px);
        }
        .btn-lg {
            padding: 16px 40px;
            font-size: 1.1rem;
        }

        .hero-visual {
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
        }
        .hero-visual .hero-img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            max-height: 520px;
            object-fit: cover;
            width: 100%;
            border: 1px solid var(--border-light);
        }
        .hero-visual .floating-badge {
            position: absolute;
            bottom: -10px;
            left: -10px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 12px 20px;
            box-shadow: var(--shadow);
            backdrop-filter: blur(10px);
        }
        .hero-visual .floating-badge .badge-num {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary);
        }
        .hero-visual .floating-badge .badge-label {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* ===== Stats Bar ===== */
        .stats-bar {
            background: var(--bg-card);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
            padding: 32px 0;
        }
        .stats-bar .container {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .stat-item {
            text-align: center;
            padding: 8px;
        }
        .stat-item .stat-num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            display: block;
            line-height: 1.2;
        }
        .stat-item .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 4px;
        }
        .stat-divider {
            border-right: 1px solid var(--border-light);
        }

        /* ===== Section Spacing ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-section);
        }
        .section-dark {
            background: var(--bg-card);
        }

        /* ===== Card Grid ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }
        .card-grid-3 {
            grid-template-columns: repeat(3, 1fr);
        }
        .card-grid-4 {
            grid-template-columns: repeat(4, 1fr);
        }

        .card {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow);
            border-color: var(--border-color);
        }
        .card .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }
        .card .card-body {
            padding: 20px 24px 24px;
        }
        .card .card-body h3 {
            margin-bottom: 8px;
        }
        .card .card-body p {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-bottom: 16px;
        }
        .card .card-footer {
            padding: 12px 24px 20px;
            border-top: 1px solid var(--border-light);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(232, 122, 0, 0.12);
            color: var(--primary);
        }
        .badge-secondary {
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-muted);
        }

        .tag {
            display: inline-block;
            padding: 2px 10px;
            border-radius: 4px;
            font-size: 0.75rem;
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-muted);
            border: 1px solid var(--border-light);
        }

        /* ===== Feature Section ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 40px;
            align-items: center;
        }
        .feature-grid .feature-img {
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            width: 100%;
            max-height: 400px;
            object-fit: cover;
        }
        .feature-grid .feature-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .feature-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }
        .feature-item .fi-icon {
            width: 44px;
            height: 44px;
            min-width: 44px;
            background: rgba(232, 122, 0, 0.1);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--primary);
            border: 1px solid var(--border-color);
        }
        .feature-item .fi-text h4 {
            margin-bottom: 4px;
            font-size: 1.05rem;
        }
        .feature-item .fi-text p {
            font-size: 0.9rem;
            margin-bottom: 0;
        }

        /* ===== News / Post List ===== */
        .post-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .post-item {
            display: flex;
            gap: 24px;
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            padding: 20px 24px;
            transition: var(--transition);
            cursor: pointer;
        }
        .post-item:hover {
            border-color: var(--border-color);
            box-shadow: var(--shadow-sm);
            transform: translateX(4px);
        }
        .post-item .post-thumb {
            width: 120px;
            height: 80px;
            min-width: 120px;
            border-radius: var(--radius-sm);
            object-fit: cover;
        }
        .post-item .post-info {
            flex: 1;
        }
        .post-item .post-info h4 {
            margin-bottom: 6px;
            font-size: 1.05rem;
        }
        .post-item .post-info p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .post-item .post-meta {
            display: flex;
            gap: 16px;
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .post-item .post-meta i {
            margin-right: 4px;
        }
        .post-item .post-meta .category {
            color: var(--primary);
        }

        /* ===== FAQ ===== */
        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            padding: 20px 24px;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-color);
        }
        .faq-item .faq-q {
            font-weight: 600;
            font-size: 1rem;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .faq-item .faq-q i {
            color: var(--primary);
            font-size: 0.9rem;
        }
        .faq-item .faq-a {
            font-size: 0.92rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--secondary), var(--bg-dark));
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            text-align: center;
            padding: 80px 0;
        }
        .cta-section h2 {
            margin-bottom: 16px;
        }
        .cta-section p {
            max-width: 520px;
            margin: 0 auto 32px;
            font-size: 1.1rem;
        }
        .cta-section .btn {
            font-size: 1.1rem;
            padding: 16px 44px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-card);
            border-top: 1px solid var(--border-light);
            padding: 48px 0 32px;
        }
        .site-footer .container {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
        }
        .footer-brand .logo {
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: var(--text-muted);
            max-width: 280px;
        }
        .footer-col h5 {
            font-size: 0.95rem;
            margin-bottom: 16px;
            color: var(--text-light);
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        .footer-col ul li a:hover {
            color: var(--primary-light);
        }

        .footer-bottom {
            margin-top: 40px;
            padding-top: 20px;
            border-top: 1px solid var(--border-light);
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .footer-bottom a {
            color: var(--text-muted);
        }
        .footer-bottom a:hover {
            color: var(--primary-light);
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        /* ===== Empty State ===== */
        .empty-state {
            text-align: center;
            padding: 40px;
            color: var(--text-muted);
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px dashed var(--border-color);
        }
        .empty-state i {
            font-size: 2.5rem;
            margin-bottom: 16px;
            opacity: 0.5;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hero .container {
                grid-template-columns: 1fr;
                gap: 40px;
                text-align: center;
            }
            .hero-content p {
                margin-left: auto;
                margin-right: auto;
            }
            .hero-buttons {
                justify-content: center;
            }
            .hero-visual .hero-img {
                max-height: 380px;
            }
            .card-grid-3,
            .card-grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .faq-grid {
                grid-template-columns: 1fr;
            }
            .site-footer .container {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .stats-bar .container {
                grid-template-columns: repeat(2, 1fr);
            }
            .stat-divider:nth-child(2) {
                border-right: none;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-h: 64px;
            }
            .container {
                padding: 0 16px;
            }
            .section {
                padding: 48px 0;
            }

            .nav-list {
                display: none;
                position: absolute;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: rgba(13, 0, 21, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 16px 24px;
                gap: 4px;
                border-bottom: 1px solid var(--border-light);
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list a {
                width: 100%;
                padding: 12px 16px;
            }
            .nav-list a.active::after {
                display: none;
            }
            .hamburger {
                display: flex;
            }

            .hero {
                min-height: auto;
                padding-top: var(--header-h);
            }
            .hero .container {
                padding-top: 24px;
                padding-bottom: 48px;
            }
            .hero-visual .hero-img {
                max-height: 280px;
            }
            .hero-visual .floating-badge {
                position: relative;
                bottom: auto;
                left: auto;
                margin-top: 16px;
                display: inline-flex;
                gap: 12px;
                align-items: center;
            }

            .card-grid {
                grid-template-columns: 1fr;
            }
            .card-grid-3,
            .card-grid-4 {
                grid-template-columns: 1fr;
            }
            .post-item {
                flex-direction: column;
                gap: 12px;
            }
            .post-item .post-thumb {
                width: 100%;
                height: 160px;
                min-width: auto;
            }
            .site-footer .container {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 12px;
                text-align: center;
            }
            .stats-bar .container {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-item .stat-num {
                font-size: 1.6rem;
            }
            .btn-lg {
                padding: 14px 32px;
                font-size: 1rem;
            }
        }

        @media (max-width: 520px) {
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            .hero-content p {
                font-size: 1rem;
            }
            .hero-buttons {
                flex-direction: column;
                align-items: center;
            }
            .hero-buttons .btn {
                width: 100%;
                justify-content: center;
            }
            .stat-item .stat-num {
                font-size: 1.3rem;
            }
            .card .card-img {
                height: 160px;
            }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #FF4D4D;
            --primary-dark: #CC0000;
            --primary-light: #FF8080;
            --secondary: #FFD700;
            --secondary-dark: #CCA800;
            --accent: #00E5FF;
            --bg-dark: #0B0B1A;
            --bg-card: #13132B;
            --bg-section: #0F0F26;
            --text-white: #FFFFFF;
            --text-light: #E0E0E0;
            --text-muted: #8888AA;
            --border-color: rgba(255, 77, 77, 0.20);
            --border-glow: rgba(255, 215, 0, 0.15);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 77, 77, 0.08);
            --shadow-hover: 0 16px 48px rgba(255, 77, 77, 0.25), 0 0 0 1px rgba(255, 215, 0, 0.15);
            --shadow-glow: 0 0 40px rgba(255, 77, 77, 0.10);
            --transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-primary: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --container-max: 1200px;
            --nav-height: 72px;
        }

        /* ===== 基础 Reset ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-primary);
            background: var(--bg-dark);
            color: var(--text-light);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        a { color: var(--secondary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-light); }
        img { max-width: 100%; height: auto; display: block; }
        ul { list-style: none; }
        h1, h2, h3, h4, h5, h6 { color: var(--text-white); font-weight: 700; line-height: 1.25; }
        h1 { font-size: clamp(2.2rem, 6vw, 4.2rem); letter-spacing: -0.02em; }
        h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); letter-spacing: -0.01em; }
        h3 { font-size: clamp(1.3rem, 2.5vw, 1.8rem); }
        h4 { font-size: 1.25rem; }
        p { margin-bottom: 1rem; color: var(--text-light); }
        .container { max-width: var(--container-max); margin: 0 auto; padding: 0 24px; }
        .section-pad { padding: 80px 0; }
        .section-title { text-align: center; margin-bottom: 16px; }
        .section-sub { text-align: center; color: var(--text-muted); max-width: 680px; margin: 0 auto 48px; font-size: 1.1rem; }
        .text-center { text-align: center; }
        .text-glow { text-shadow: 0 0 30px rgba(255, 77, 77, 0.3); }

        /* ===== 导航 ===== */
        .site-header {
            position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
            background: rgba(11, 11, 26, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-color);
            height: var(--nav-height);
            transition: var(--transition);
        }
        .site-header.scrolled { background: rgba(11, 11, 26, 0.98); box-shadow: 0 4px 30px rgba(0,0,0,0.5); }
        .header-inner {
            display: flex; align-items: center; justify-content: space-between;
            height: var(--nav-height); max-width: var(--container-max); margin: 0 auto; padding: 0 24px;
        }
        .logo {
            display: flex; align-items: center; gap: 10px;
            font-size: 1.5rem; font-weight: 800; color: var(--text-white); letter-spacing: -0.02em;
        }
        .logo:hover { color: var(--secondary); }
        .logo-icon {
            display: inline-flex; align-items: center; justify-content: center;
            width: 38px; height: 38px; background: var(--primary);
            color: #fff; font-weight: 900; font-size: 1.3rem;
            border-radius: var(--radius-sm); box-shadow: 0 0 20px rgba(255, 77, 77, 0.3);
        }
        .nav-list { display: flex; align-items: center; gap: 8px; }
        .nav-list a {
            padding: 8px 18px; border-radius: var(--radius-sm);
            font-size: 0.95rem; font-weight: 500; color: var(--text-light);
            transition: var(--transition); position: relative;
        }
        .nav-list a:hover { color: var(--text-white); background: rgba(255, 255, 255, 0.05); }
        .nav-list a.active {
            color: var(--text-white); background: rgba(255, 77, 77, 0.15);
            box-shadow: inset 0 -2px 0 var(--primary);
        }
        .nav-list a.active::after {
            content: ''; position: absolute; bottom: 0; left: 50%; transform: translateX(-50%);
            width: 50%; height: 2px; background: var(--primary); border-radius: 2px;
        }
        .nav-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark)) !important;
            color: #fff !important; padding: 8px 24px !important; border-radius: var(--radius-sm) !important;
            font-weight: 600 !important; box-shadow: 0 4px 20px rgba(255, 77, 77, 0.3);
        }
        .nav-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(255, 77, 77, 0.4) !important; background: linear-gradient(135deg, var(--primary-light), var(--primary)) !important; }
        .nav-toggle { display: none; background: none; border: none; color: var(--text-white); font-size: 1.6rem; cursor: pointer; padding: 4px; }

        /* ===== 首屏 Banner (分屏风格) ===== */
        .category-hero {
            margin-top: var(--nav-height);
            min-height: 520px;
            display: flex; align-items: stretch;
            background: var(--bg-dark);
            position: relative; overflow: hidden;
        }
        .category-hero .hero-bg {
            position: absolute; inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.25; z-index: 0;
            transform: scale(1.05); transition: transform 8s ease;
        }
        .category-hero:hover .hero-bg { transform: scale(1.0); }
        .category-hero::after {
            content: ''; position: absolute; inset: 0;
            background: linear-gradient(135deg, rgba(11,11,26,0.92) 40%, rgba(11,11,26,0.60) 70%, rgba(255,77,77,0.08) 100%);
            z-index: 1;
        }
        .hero-split {
            position: relative; z-index: 2;
            display: grid; grid-template-columns: 1fr 1fr; gap: 40px;
            align-items: center; width: 100%; max-width: var(--container-max);
            margin: 0 auto; padding: 60px 24px;
        }
        .hero-left { display: flex; flex-direction: column; gap: 20px; }
        .hero-left .hero-tag {
            display: inline-flex; align-items: center; gap: 8px;
            background: rgba(255, 215, 0, 0.12); color: var(--secondary);
            padding: 6px 18px; border-radius: 50px; font-size: 0.85rem; font-weight: 600;
            border: 1px solid rgba(255, 215, 0, 0.15); width: fit-content;
        }
        .hero-left .hero-tag i { font-size: 0.75rem; }
        .hero-left h1 { font-size: clamp(2.4rem, 5.5vw, 3.8rem); line-height: 1.15; }
        .hero-left h1 span { color: var(--primary); }
        .hero-left .hero-desc { font-size: 1.15rem; color: var(--text-muted); max-width: 520px; line-height: 1.8; }
        .hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 8px; }
        .hero-actions .btn-primary {
            display: inline-flex; align-items: center; gap: 10px;
            background: linear-gradient(135deg, var(--primary), #CC0033);
            color: #fff; padding: 14px 36px; border-radius: var(--radius-sm);
            font-weight: 700; font-size: 1rem; border: none; cursor: pointer;
            box-shadow: 0 4px 30px rgba(255, 77, 77, 0.3);
            transition: var(--transition);
        }
        .hero-actions .btn-primary:hover { transform: translateY(-3px); box-shadow: 0 8px 40px rgba(255, 77, 77, 0.5); }
        .hero-actions .btn-outline {
            display: inline-flex; align-items: center; gap: 10px;
            background: transparent; color: var(--text-white); padding: 14px 36px;
            border-radius: var(--radius-sm); font-weight: 600; font-size: 1rem;
            border: 1px solid rgba(255,255,255,0.20); cursor: pointer;
            transition: var(--transition);
        }
        .hero-actions .btn-outline:hover { border-color: var(--secondary); color: var(--secondary); background: rgba(255,215,0,0.05); }
        .hero-right {
            display: flex; align-items: center; justify-content: center;
            position: relative;
        }
        .hero-right .hero-img-wrap {
            width: 100%; max-width: 480px; border-radius: var(--radius-lg);
            overflow: hidden; box-shadow: 0 24px 80px rgba(0,0,0,0.6), 0 0 0 1px rgba(255,77,77,0.10);
            transform: perspective(1000px) rotateY(-4deg) rotateX(2deg);
            transition: var(--transition);
        }
        .hero-right .hero-img-wrap:hover { transform: perspective(1000px) rotateY(0deg) rotateX(0deg); }
        .hero-right .hero-img-wrap img { width: 100%; display: block; }
        .hero-floating-badge {
            position: absolute; bottom: 20px; left: -20px;
            background: var(--bg-card); border: 1px solid var(--border-color);
            border-radius: var(--radius-md); padding: 16px 24px;
            box-shadow: var(--shadow-card); display: flex; align-items: center; gap: 16px;
            backdrop-filter: blur(8px);
        }
        .hero-floating-badge .badge-num { font-size: 2rem; font-weight: 800; color: var(--secondary); line-height: 1; }
        .hero-floating-badge .badge-label { font-size: 0.85rem; color: var(--text-muted); }

        /* ===== 板块通用 ===== */
        .section-dark { background: var(--bg-section); }
        .section-card-bg { background: var(--bg-card); }

        /* ===== 卡片网格 ===== */
        .card-grid {
            display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }
        .card-grid-3 { grid-template-columns: repeat(3, 1fr); }
        .card-grid-4 { grid-template-columns: repeat(4, 1fr); }

        .game-card {
            background: var(--bg-card); border-radius: var(--radius-md);
            overflow: hidden; border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card); transition: var(--transition);
            display: flex; flex-direction: column;
        }
        .game-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-hover); border-color: rgba(255,215,0,0.15); }
        .game-card .card-img {
            width: 100%; aspect-ratio: 16/9; object-fit: cover;
            border-bottom: 2px solid rgba(255,77,77,0.08);
        }
        .game-card .card-body { padding: 20px; flex: 1; display: flex; flex-direction: column; gap: 10px; }
        .game-card .card-body h3 { font-size: 1.15rem; margin-bottom: 4px; }
        .game-card .card-body h3 a { color: var(--text-white); }
        .game-card .card-body h3 a:hover { color: var(--secondary); }
        .game-card .card-meta { display: flex; align-items: center; gap: 12px; font-size: 0.85rem; color: var(--text-muted); }
        .game-card .card-meta .rating { color: var(--secondary); font-weight: 700; }
        .game-card .card-meta .badge {
            display: inline-block; padding: 2px 12px; border-radius: 50px;
            font-size: 0.75rem; font-weight: 600; background: rgba(255,77,77,0.12); color: var(--primary);
        }
        .game-card .card-body .card-desc { font-size: 0.92rem; color: var(--text-muted); flex: 1; }
        .game-card .card-body .card-tags { display: flex; flex-wrap: wrap; gap: 6px; }
        .game-card .card-body .card-tags span {
            padding: 2px 12px; border-radius: 50px; font-size: 0.75rem;
            background: rgba(255,255,255,0.04); color: var(--text-muted); border: 1px solid rgba(255,255,255,0.06);
        }

        /* ===== 排行 / 时间线 ===== */
        .rank-list { display: flex; flex-direction: column; gap: 12px; }
        .rank-item {
            display: flex; align-items: center; gap: 20px;
            background: var(--bg-card); border-radius: var(--radius-sm);
            padding: 16px 24px; border: 1px solid var(--border-color);
            transition: var(--transition); cursor: default;
        }
        .rank-item:hover { border-color: rgba(255,215,0,0.12); background: rgba(19,19,43,0.8); transform: translateX(6px); }
        .rank-num { font-size: 1.6rem; font-weight: 800; color: var(--primary); min-width: 48px; }
        .rank-item .rank-info { flex: 1; }
        .rank-item .rank-info h4 { font-size: 1.05rem; margin-bottom: 2px; }
        .rank-item .rank-info p { font-size: 0.85rem; color: var(--text-muted); margin: 0; }
        .rank-score { font-size: 1.3rem; font-weight: 700; color: var(--secondary); }

        /* ===== 流程步骤 ===== */
        .steps-grid {
            display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 24px; margin-top: 32px;
        }
        .step-card {
            background: var(--bg-card); border-radius: var(--radius-md);
            padding: 32px 24px; text-align: center;
            border: 1px solid var(--border-color); box-shadow: var(--shadow-card);
            transition: var(--transition); position: relative;
        }
        .step-card:hover { transform: translateY(-6px); border-color: rgba(255,215,0,0.10); }
        .step-card .step-icon {
            width: 64px; height: 64px; margin: 0 auto 16px;
            background: linear-gradient(135deg, rgba(255,77,77,0.15), rgba(255,215,0,0.05));
            border-radius: 50%; display: flex; align-items: center; justify-content: center;
            font-size: 1.6rem; color: var(--secondary);
        }
        .step-card .step-num {
            position: absolute; top: 12px; right: 16px;
            font-size: 2.4rem; font-weight: 800; color: rgba(255,77,77,0.10); line-height: 1;
        }
        .step-card h4 { margin-bottom: 8px; }
        .step-card p { font-size: 0.9rem; color: var(--text-muted); margin: 0; }

        /* ===== FAQ ===== */
        .faq-grid { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
        .faq-item {
            background: var(--bg-card); border-radius: var(--radius-sm);
            border: 1px solid var(--border-color); overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: rgba(255,215,0,0.08); }
        .faq-question {
            padding: 18px 24px; display: flex; align-items: center; justify-content: space-between;
            cursor: pointer; font-weight: 600; color: var(--text-white); font-size: 1rem;
            background: none; border: none; width: 100%; text-align: left;
            transition: var(--transition);
        }
        .faq-question:hover { color: var(--secondary); }
        .faq-question i { transition: var(--transition); color: var(--text-muted); }
        .faq-question.active i { transform: rotate(180deg); color: var(--secondary); }
        .faq-answer {
            padding: 0 24px 18px; font-size: 0.95rem; color: var(--text-muted);
            display: none; line-height: 1.8;
        }
        .faq-answer.show { display: block; }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, rgba(255,77,77,0.08), rgba(255,215,0,0.04));
            border-top: 1px solid var(--border-color); border-bottom: 1px solid var(--border-color);
            text-align: center;
        }
        .cta-section h2 { margin-bottom: 16px; }
        .cta-section p { color: var(--text-muted); max-width: 560px; margin: 0 auto 32px; }
        .cta-section .btn-primary {
            display: inline-flex; align-items: center; gap: 12px;
            background: linear-gradient(135deg, var(--primary), #CC0033);
            color: #fff; padding: 16px 48px; border-radius: var(--radius-sm);
            font-weight: 700; font-size: 1.1rem; border: none; cursor: pointer;
            box-shadow: 0 4px 30px rgba(255,77,77,0.3);
            transition: var(--transition);
        }
        .cta-section .btn-primary:hover { transform: translateY(-3px); box-shadow: 0 8px 50px rgba(255,77,77,0.5); }

        /* ===== 统计数字 ===== */
        .stats-grid {
            display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
        }
        .stat-item { text-align: center; padding: 24px; }
        .stat-item .stat-num { font-size: 2.8rem; font-weight: 800; color: var(--secondary); line-height: 1.2; }
        .stat-item .stat-label { font-size: 0.95rem; color: var(--text-muted); margin-top: 6px; }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-card); border-top: 1px solid var(--border-color);
            padding: 60px 0 0;
        }
        .site-footer .container:first-child {
            display: grid; grid-template-columns: 1.8fr 1fr 1fr 1.2fr; gap: 40px;
        }
        .site-footer .logo { margin-bottom: 16px; }
        .site-footer .footer-brand p { font-size: 0.9rem; color: var(--text-muted); max-width: 320px; }
        .site-footer h5 { font-size: 1rem; margin-bottom: 16px; color: var(--text-white); font-weight: 600; }
        .site-footer ul li { margin-bottom: 10px; }
        .site-footer ul li a { font-size: 0.9rem; color: var(--text-muted); transition: var(--transition); }
        .site-footer ul li a:hover { color: var(--secondary); padding-left: 4px; }
        .site-footer ul li a i { width: 20px; margin-right: 6px; }
        .footer-bottom {
            margin-top: 40px; padding: 20px 0; border-top: 1px solid var(--border-color);
            display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px;
        }
        .footer-bottom span { font-size: 0.85rem; color: var(--text-muted); }
        .footer-social { display: flex; gap: 12px; }
        .footer-social a {
            width: 36px; height: 36px; border-radius: 50%;
            background: rgba(255,255,255,0.04); border: 1px solid var(--border-color);
            display: flex; align-items: center; justify-content: center;
            color: var(--text-muted); font-size: 1rem; transition: var(--transition);
        }
        .footer-social a:hover { background: var(--primary); color: #fff; border-color: var(--primary); transform: translateY(-2px); }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .hero-split { grid-template-columns: 1fr; gap: 32px; padding: 40px 24px; }
            .hero-right { display: none; }
            .hero-floating-badge { position: relative; bottom: auto; left: auto; margin-top: 16px; }
            .card-grid-3, .card-grid-4 { grid-template-columns: repeat(2, 1fr); }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .site-footer .container:first-child { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            .nav-list { display: none; }
            .nav-list.open { display: flex; flex-direction: column; position: absolute; top: var(--nav-height); left: 0; width: 100%; background: rgba(11,11,26,0.98); backdrop-filter: blur(16px); padding: 16px 24px; border-bottom: 1px solid var(--border-color); gap: 4px; }
            .nav-toggle { display: block; }
            .category-hero { min-height: 400px; }
            .hero-left h1 { font-size: clamp(1.8rem, 8vw, 2.6rem); }
            .hero-left .hero-desc { font-size: 1rem; }
            .card-grid { grid-template-columns: 1fr; }
            .card-grid-3, .card-grid-4 { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
            .stat-item .stat-num { font-size: 2rem; }
            .site-footer .container:first-child { grid-template-columns: 1fr; gap: 32px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .section-pad { padding: 48px 0; }
            .steps-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 520px) {
            .hero-actions { flex-direction: column; }
            .hero-actions .btn-primary, .hero-actions .btn-outline { width: 100%; justify-content: center; }
            .steps-grid { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: 1fr; }
            .rank-item { flex-wrap: wrap; gap: 12px; }
            .rank-score { margin-left: auto; }
        }

        /* ===== 滚动动画辅助 ===== */
        .fade-up { opacity: 0; transform: translateY(30px); transition: opacity 0.8s ease, transform 0.8s ease; }
        .fade-up.visible { opacity: 1; transform: translateY(0); }

        /* ===== 自定义滚动条 ===== */
        ::-webkit-scrollbar { width: 6px; }
        ::-webkit-scrollbar-track { background: var(--bg-dark); }
        ::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 4px; }
        ::-webkit-scrollbar-thumb:hover { background: var(--primary-dark); }

        /* ===== 选中高亮 ===== */
        ::selection { background: rgba(255, 77, 77, 0.35); color: #fff; }

/* roulang page: article */
:root {
            --primary: #e74c3c;
            --primary-dark: #c0392b;
            --primary-light: #f1948a;
            --secondary: #f39c12;
            --secondary-light: #fdebd0;
            --accent: #2ecc71;
            --bg-dark: #0a0a0f;
            --bg-darker: #050508;
            --bg-card: #141419;
            --bg-card-hover: #1c1c24;
            --bg-section: #0e0e14;
            --bg-input: #1a1a22;
            --text-primary: #f5f5f7;
            --text-secondary: #a0a0b0;
            --text-muted: #6b6b7b;
            --border-color: #2a2a35;
            --border-light: #3a3a48;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.6);
            --shadow-glow: 0 0 30px rgba(231, 76, 60, 0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --max-width: 1200px;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

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

        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover,
        a:focus {
            color: var(--primary);
            outline: none;
        }
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            border: none;
            background: none;
            color: inherit;
        }
        button {
            cursor: pointer;
        }
        input:focus,
        textarea:focus,
        select:focus {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section-pad {
            padding: 80px 0;
        }
        .section-pad-sm {
            padding: 48px 0;
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-light) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto 40px;
        }

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

        .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            background: var(--primary);
            color: #fff;
        }
        .badge-secondary {
            background: var(--secondary);
            color: #1a1a1a;
        }
        .badge-accent {
            background: var(--accent);
            color: #1a1a1a;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            border: 2px solid transparent;
            background: var(--primary);
            color: #fff;
        }
        .btn:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-glow);
        }
        .btn:active {
            transform: translateY(0);
        }
        .btn-outline {
            background: transparent;
            border-color: var(--border-light);
            color: var(--text-primary);
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(231, 76, 60, 0.08);
            box-shadow: none;
        }
        .btn-ghost {
            background: rgba(255, 255, 255, 0.06);
            border-color: transparent;
            color: var(--text-primary);
        }
        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.12);
            color: var(--text-primary);
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 0.82rem;
        }
        .btn-lg {
            padding: 16px 36px;
            font-size: 1.05rem;
        }

        /* ===== Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(10, 10, 15, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .site-header.scrolled {
            background: rgba(10, 10, 15, 0.98);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 900;
            color: var(--text-primary);
            letter-spacing: -0.5px;
        }
        .logo:hover {
            color: var(--text-primary);
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            border-radius: var(--radius-sm);
            font-size: 1.3rem;
            font-weight: 900;
            color: #fff;
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-list a {
            padding: 8px 18px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
        }
        .nav-list a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
        }
        .nav-list a.active {
            color: var(--text-primary);
            background: rgba(231, 76, 60, 0.15);
        }
        .nav-list a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
        }
        .nav-list a.nav-cta {
            background: var(--primary);
            color: #fff;
            padding: 8px 22px;
            font-weight: 600;
        }
        .nav-list a.nav-cta:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-glow);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.5rem;
            padding: 8px;
            cursor: pointer;
        }

        /* ===== Article Hero ===== */
        .article-hero {
            padding: 140px 0 60px;
            background: linear-gradient(135deg, var(--bg-darker) 0%, var(--bg-card) 50%, var(--bg-darker) 100%);
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--border-color);
        }
        .article-hero::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(231, 76, 60, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        .article-hero .container {
            position: relative;
            z-index: 1;
        }
        .article-hero .badge {
            margin-bottom: 16px;
        }
        .article-hero h1 {
            font-size: 2.6rem;
            font-weight: 900;
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: -1px;
            max-width: 800px;
        }
        .article-hero .meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 30px;
            color: var(--text-secondary);
            font-size: 0.9rem;
            margin-bottom: 20px;
        }
        .article-hero .meta i {
            margin-right: 6px;
            color: var(--primary-light);
        }
        .article-hero .desc {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 700px;
            line-height: 1.6;
        }
        .article-hero .hero-img {
            margin-top: 30px;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            max-height: 420px;
            width: 100%;
            object-fit: cover;
        }

        /* ===== Article Content ===== */
        .article-main {
            padding: 60px 0 80px;
            background: var(--bg-dark);
        }
        .article-main .grid-x {
            gap: 40px;
        }
        .article-body {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--text-primary);
        }
        .article-body p {
            margin-bottom: 20px;
        }
        .article-body h2 {
            font-size: 1.6rem;
            font-weight: 700;
            margin: 40px 0 16px;
            color: var(--text-primary);
        }
        .article-body h3 {
            font-size: 1.25rem;
            font-weight: 600;
            margin: 32px 0 12px;
            color: var(--text-primary);
        }
        .article-body ul,
        .article-body ol {
            margin: 16px 0 20px 24px;
            color: var(--text-secondary);
        }
        .article-body li {
            margin-bottom: 8px;
        }
        .article-body blockquote {
            border-left: 4px solid var(--primary);
            padding: 16px 24px;
            margin: 24px 0;
            background: rgba(231, 76, 60, 0.06);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }
        .article-body img {
            border-radius: var(--radius-md);
            margin: 24px 0;
            box-shadow: var(--shadow-md);
        }
        .article-body a {
            color: var(--primary-light);
            border-bottom: 1px solid transparent;
        }
        .article-body a:hover {
            border-bottom-color: var(--primary-light);
        }

        .article-sidebar {
            position: sticky;
            top: 100px;
        }
        .sidebar-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px;
            margin-bottom: 24px;
        }
        .sidebar-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-primary);
        }
        .sidebar-card .side-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 0;
            border-bottom: 1px solid var(--border-color);
            color: var(--text-secondary);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .sidebar-card .side-link:last-child {
            border-bottom: none;
        }
        .sidebar-card .side-link:hover {
            color: var(--primary-light);
            padding-left: 6px;
        }
        .sidebar-card .side-link img {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }

        /* ===== Tags & Share ===== */
        .article-tags {
            padding: 24px 0 16px;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            margin-top: 32px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
        }
        .article-tags .tag-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            font-weight: 600;
        }
        .article-tags .tag-item {
            display: inline-block;
            padding: 4px 14px;
            background: var(--bg-input);
            border: 1px solid var(--border-color);
            border-radius: 50px;
            font-size: 0.78rem;
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .article-tags .tag-item:hover {
            border-color: var(--primary);
            color: var(--primary-light);
        }
        .article-share {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-left: auto;
        }
        .article-share a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--bg-input);
            border: 1px solid var(--border-color);
            color: var(--text-secondary);
            transition: var(--transition);
            font-size: 0.9rem;
        }
        .article-share a:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== Related Posts ===== */
        .related-section {
            background: var(--bg-section);
            border-top: 1px solid var(--border-color);
            padding: 80px 0;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
            margin-top: 32px;
        }
        .related-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }
        .related-card:hover {
            transform: translateY(-6px);
            border-color: var(--border-light);
            box-shadow: var(--shadow-md);
        }
        .related-card .card-img {
            height: 180px;
            background: var(--bg-input);
            overflow: hidden;
        }
        .related-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .related-card:hover .card-img img {
            transform: scale(1.05);
        }
        .related-card .card-body {
            padding: 20px;
        }
        .related-card .card-body .badge {
            font-size: 0.65rem;
            margin-bottom: 8px;
        }
        .related-card .card-body h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .related-card .card-body h4 a {
            color: var(--text-primary);
        }
        .related-card .card-body h4 a:hover {
            color: var(--primary-light);
        }
        .related-card .card-body p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
        }
        .related-card .card-body .meta-sm {
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-top: 12px;
            display: flex;
            gap: 16px;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, var(--bg-darker) 0%, var(--bg-card) 100%);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            text-align: center;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 12px;
        }
        .cta-section p {
            color: var(--text-secondary);
            max-width: 500px;
            margin: 0 auto 28px;
            font-size: 1.05rem;
        }
        .cta-section .btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-darker);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 32px;
        }
        .site-footer .container:first-child {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 32px;
            border-bottom: 1px solid var(--border-color);
        }
        .site-footer .logo {
            margin-bottom: 16px;
        }
        .site-footer .footer-brand p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
            max-width: 320px;
        }
        .site-footer h5 {
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-primary);
        }
        .site-footer ul li {
            margin-bottom: 10px;
        }
        .site-footer ul li a {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .site-footer ul li a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }
        .site-footer ul li a i {
            margin-right: 8px;
            width: 16px;
            text-align: center;
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding-top: 24px;
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--bg-input);
            color: var(--text-muted);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            font-size: 0.9rem;
        }
        .footer-social a:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== Not Found ===== */
        .not-found-box {
            text-align: center;
            padding: 80px 24px;
            max-width: 500px;
            margin: 0 auto;
        }
        .not-found-box .icon-big {
            font-size: 4rem;
            color: var(--text-muted);
            margin-bottom: 20px;
        }
        .not-found-box h2 {
            font-size: 1.6rem;
            margin-bottom: 12px;
        }
        .not-found-box p {
            color: var(--text-secondary);
            margin-bottom: 24px;
        }

        /* ===== Responsive ===== */
        @media screen and (max-width: 1024px) {
            .site-footer .container:first-child {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .article-hero h1 {
                font-size: 2rem;
            }
        }

        @media screen and (max-width: 820px) {
            .section-pad {
                padding: 56px 0;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .article-hero {
                padding: 120px 0 40px;
            }
            .article-hero h1 {
                font-size: 1.7rem;
            }
            .article-main .grid-x .cell.medium-4 {
                display: none;
            }
            .related-grid {
                grid-template-columns: 1fr 1fr;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
        }

        @media screen and (max-width: 640px) {
            .header-inner {
                height: 64px;
            }
            .nav-toggle {
                display: block;
            }
            .nav-list {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: rgba(10, 10, 15, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 16px 24px 24px;
                border-bottom: 1px solid var(--border-color);
                gap: 4px;
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list a {
                width: 100%;
                padding: 12px 16px;
            }
            .nav-list a.nav-cta {
                text-align: center;
                margin-top: 8px;
            }
            .nav-list a.active::after {
                display: none;
            }

            .container {
                padding: 0 16px;
            }
            .section-pad {
                padding: 40px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .section-subtitle {
                font-size: 0.92rem;
                margin-bottom: 28px;
            }

            .article-hero {
                padding: 100px 0 32px;
            }
            .article-hero h1 {
                font-size: 1.4rem;
            }
            .article-hero .meta {
                font-size: 0.8rem;
                gap: 10px 20px;
            }
            .article-hero .desc {
                font-size: 0.95rem;
            }

            .article-body {
                font-size: 0.95rem;
            }
            .article-body h2 {
                font-size: 1.3rem;
            }
            .article-body h3 {
                font-size: 1.1rem;
            }

            .article-tags {
                flex-direction: column;
                align-items: flex-start;
            }
            .article-share {
                margin-left: 0;
                margin-top: 8px;
            }

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

            .site-footer .container:first-child {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .cta-section {
                padding: 48px 0;
            }
            .cta-section h2 {
                font-size: 1.3rem;
            }
            .cta-section .btn-group {
                flex-direction: column;
                align-items: center;
            }

            .not-found-box {
                padding: 48px 16px;
            }
            .not-found-box .icon-big {
                font-size: 3rem;
            }
            .not-found-box h2 {
                font-size: 1.3rem;
            }
        }

        @media screen and (max-width: 420px) {
            .article-hero h1 {
                font-size: 1.2rem;
            }
            .btn-lg {
                padding: 14px 24px;
                font-size: 0.95rem;
            }
            .logo {
                font-size: 1.2rem;
            }
            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 1.1rem;
            }
        }