/* roulang page: index */
:root {
            --bg-deep: #060b14;
            --bg-primary: #0a0f1d;
            --bg-secondary: #0f1628;
            --bg-card: #141c30;
            --bg-card-hover: #1a233d;
            --bg-glass: rgba(20, 28, 48, 0.75);
            --accent-cyan: #00d4ff;
            --accent-cyan-dim: rgba(0, 212, 255, 0.18);
            --accent-purple: #8b5cf6;
            --accent-purple-dim: rgba(139, 92, 246, 0.2);
            --accent-green: #10e873;
            --accent-green-dim: rgba(16, 232, 115, 0.18);
            --accent-pink: #f43f7c;
            --accent-pink-dim: rgba(244, 63, 124, 0.18);
            --accent-amber: #f59e0b;
            --text-primary: #e8edf5;
            --text-secondary: #b0bdd0;
            --text-muted: #6b7d95;
            --text-dim: #4a5570;
            --border-subtle: #1a2540;
            --border-light: #253050;
            --border-glow: rgba(0, 212, 255, 0.35);
            --radius-xs: 6px;
            --radius-sm: 10px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --radius-full: 9999px;
            --shadow-card: 0 2px 16px rgba(0, 0, 0, 0.45), 0 1px 4px rgba(0, 0, 0, 0.3);
            --shadow-card-hover: 0 8px 32px rgba(0, 0, 0, 0.55), 0 2px 8px rgba(0, 212, 255, 0.12);
            --shadow-glow-cyan: 0 0 28px rgba(0, 212, 255, 0.25), 0 0 60px rgba(0, 212, 255, 0.08);
            --shadow-glow-purple: 0 0 28px rgba(139, 92, 246, 0.25), 0 0 60px rgba(139, 92, 246, 0.08);
            --shadow-glow-green: 0 0 24px rgba(16, 232, 115, 0.2);
            --transition-fast: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-bounce: 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
            --font-display: 'Noto Sans SC', 'Inter', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --font-body: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --section-gap: 100px;
            --section-gap-md: 70px;
            --section-gap-sm: 50px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.7;
            min-height: 100vh;
            overflow-x: hidden;
            background-image:
                radial-gradient(ellipse at 28% 15%, rgba(0, 212, 255, 0.04) 0%, transparent 60%),
                radial-gradient(ellipse at 72% 30%, rgba(139, 92, 246, 0.05) 0%, transparent 55%),
                radial-gradient(ellipse at 50% 65%, rgba(16, 232, 115, 0.03) 0%, transparent 50%);
            background-attachment: fixed;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }

        input {
            font-family: inherit;
        }

        ul,
        ol {
            list-style: none;
        }

        .container {
            width: 100%;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 28px;
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 18px;
            }
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(10, 15, 29, 0.82);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            transition: all var(--transition-smooth);
            height: 68px;
            display: flex;
            align-items: center;
        }

        .site-header.scrolled {
            background: rgba(10, 15, 29, 0.95);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
            border-bottom-color: var(--border-light);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-display);
            font-weight: 800;
            font-size: 1.35rem;
            color: var(--text-primary);
            letter-spacing: 0.02em;
            white-space: nowrap;
            transition: all var(--transition-fast);
        }

        .logo-link:hover {
            color: var(--accent-cyan);
            text-shadow: 0 0 20px rgba(0, 212, 255, 0.4);
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 1.15rem;
            color: #fff;
            letter-spacing: 0;
            box-shadow: var(--shadow-glow-cyan);
            flex-shrink: 0;
        }

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

        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 10px 18px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }

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

        .nav-link.active {
            color: #fff;
            background: linear-gradient(135deg, var(--accent-cyan-dim), var(--accent-purple-dim));
            box-shadow: 0 0 16px rgba(0, 212, 255, 0.15);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 10px 22px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 0.95rem;
            background: linear-gradient(135deg, var(--accent-cyan), #0098cc);
            color: #fff;
            box-shadow: var(--shadow-glow-cyan);
            transition: all var(--transition-bounce);
            white-space: nowrap;
            margin-left: 10px;
        }

        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 36px rgba(0, 212, 255, 0.45), 0 4px 20px rgba(0, 0, 0, 0.4);
            color: #fff;
        }

        .nav-cta:active {
            transform: translateY(0);
            box-shadow: var(--shadow-glow-cyan);
        }

        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 8px;
            z-index: 1001;
            border-radius: var(--radius-xs);
            transition: background var(--transition-fast);
        }

        .menu-toggle:hover {
            background: rgba(255, 255, 255, 0.05);
        }

        .menu-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text-primary);
            border-radius: 3px;
            transition: all var(--transition-smooth);
            transform-origin: center;
        }

        .menu-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

        .menu-toggle.active span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }

        .menu-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(6px, -6px);
        }

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

            .nav-menu {
                position: fixed;
                top: 0;
                right: -100%;
                width: 280px;
                height: 100vh;
                background: rgba(14, 20, 36, 0.97);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                align-items: stretch;
                padding: 90px 24px 40px;
                gap: 4px;
                transition: right var(--transition-smooth);
                box-shadow: -8px 0 32px rgba(0, 0, 0, 0.6);
                border-left: 1px solid var(--border-subtle);
                overflow-y: auto;
            }

            .nav-menu.open {
                right: 0;
            }

            .nav-link {
                padding: 14px 18px;
                font-size: 1.05rem;
                border-radius: var(--radius-sm);
            }

            .nav-cta {
                margin-left: 0;
                margin-top: 10px;
                justify-content: center;
                font-size: 1rem;
                padding: 14px 22px;
            }

            .site-header {
                height: 60px;
            }

            .logo-link {
                font-size: 1.15rem;
            }

            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 1rem;
            }
        }

        @media (max-width: 400px) {
            .logo-link {
                font-size: 1rem;
            }

            .logo-icon {
                width: 28px;
                height: 28px;
                font-size: 0.85rem;
            }

            .nav-menu {
                width: 260px;
            }
        }

        /* ========== HERO ========== */
        .hero-section {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 120px 0 80px;
            overflow: hidden;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg,
                    rgba(6, 11, 20, 0.55) 0%,
                    rgba(10, 15, 29, 0.7) 35%,
                    rgba(10, 15, 29, 0.88) 70%,
                    rgba(6, 11, 20, 0.97) 100%);
            z-index: 1;
        }

        .hero-particles {
            position: absolute;
            inset: 0;
            z-index: 2;
            pointer-events: none;
            background:
                radial-gradient(circle at 25% 30%, rgba(0, 212, 255, 0.08) 0%, transparent 45%),
                radial-gradient(circle at 70% 55%, rgba(139, 92, 246, 0.09) 0%, transparent 40%),
                radial-gradient(circle at 45% 70%, rgba(16, 232, 115, 0.05) 0%, transparent 38%);
        }

        .hero-content {
            position: relative;
            z-index: 3;
            text-align: center;
            max-width: 800px;
            margin: 0 auto;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 18px;
            border-radius: var(--radius-full);
            background: rgba(0, 212, 255, 0.1);
            border: 1px solid rgba(0, 212, 255, 0.25);
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--accent-cyan);
            margin-bottom: 28px;
            letter-spacing: 0.04em;
            animation: pulse-badge 2.5s ease-in-out infinite;
        }

        @keyframes pulse-badge {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(0, 212, 255, 0.3);
            }
            50% {
                box-shadow: 0 0 0 14px rgba(0, 212, 255, 0);
            }
        }

        .hero-badge-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent-green);
            animation: blink-dot 1.5s ease-in-out infinite;
        }

        @keyframes blink-dot {
            0%,
            100% {
                opacity: 1;
                box-shadow: 0 0 6px var(--accent-green);
            }
            50% {
                opacity: 0.35;
                box-shadow: 0 0 2px var(--accent-green);
            }
        }

        .hero-title {
            font-family: var(--font-display);
            font-weight: 900;
            font-size: clamp(2.4rem, 5.5vw, 4rem);
            line-height: 1.2;
            color: #fff;
            margin-bottom: 20px;
            letter-spacing: 0.01em;
        }

        .hero-title span {
            background: linear-gradient(135deg, var(--accent-cyan) 0%, #6ee7ff 40%, var(--accent-purple) 70%, #c4b5fd 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            background-size: 200% 200%;
            animation: gradient-shift 4s ease-in-out infinite;
        }

        @keyframes gradient-shift {
            0%,
            100% {
                background-position: 0% 50%;
            }
            50% {
                background-position: 100% 50%;
            }
        }

        .hero-desc {
            font-size: 1.15rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto 36px;
            line-height: 1.8;
            letter-spacing: 0.02em;
        }

        .hero-actions {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 15px 34px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 1.05rem;
            background: linear-gradient(135deg, var(--accent-cyan), #0088bb);
            color: #fff;
            box-shadow: var(--shadow-glow-cyan);
            transition: all var(--transition-bounce);
            letter-spacing: 0.03em;
            position: relative;
            overflow: hidden;
        }

        .btn-primary::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), transparent);
            opacity: 0;
            transition: opacity var(--transition-fast);
            border-radius: var(--radius-full);
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 0 44px rgba(0, 212, 255, 0.5), 0 6px 24px rgba(0, 0, 0, 0.5);
            color: #fff;
        }

        .btn-primary:hover::after {
            opacity: 1;
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: var(--shadow-glow-cyan);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 15px 34px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 1.05rem;
            background: transparent;
            color: #fff;
            border: 2px solid var(--border-light);
            transition: all var(--transition-bounce);
            letter-spacing: 0.03em;
        }

        .btn-outline:hover {
            border-color: var(--accent-purple);
            background: rgba(139, 92, 246, 0.08);
            box-shadow: var(--shadow-glow-purple);
            transform: translateY(-2px);
        }

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

        @media (max-width: 768px) {
            .hero-section {
                min-height: auto;
                padding: 130px 0 70px;
            }
            .hero-desc {
                font-size: 1rem;
            }
            .btn-primary,
            .btn-outline {
                padding: 13px 26px;
                font-size: 0.95rem;
                width: 100%;
                justify-content: center;
                max-width: 320px;
            }
            .hero-actions {
                flex-direction: column;
                gap: 12px;
                align-items: center;
            }
        }

        /* ========== SECTION COMMON ========== */
        .section {
            padding: var(--section-gap) 0;
            position: relative;
        }

        @media (max-width: 1024px) {
            .section {
                padding: var(--section-gap-md) 0;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: var(--section-gap-sm) 0;
            }
        }

        .section-header {
            text-align: center;
            margin-bottom: 56px;
        }

        .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--accent-cyan);
            margin-bottom: 12px;
            padding: 6px 14px;
            border-radius: var(--radius-full);
            background: rgba(0, 212, 255, 0.08);
            border: 1px solid rgba(0, 212, 255, 0.2);
        }

        .section-title {
            font-family: var(--font-display);
            font-weight: 800;
            font-size: clamp(1.6rem, 3.5vw, 2.4rem);
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.01em;
            line-height: 1.3;
        }

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

        /* ========== FEATURES GRID ========== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .features-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 32px 26px;
            text-align: center;
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 3px;
            border-radius: 0 0 4px 4px;
            background: linear-gradient(90deg, transparent, var(--accent-cyan), transparent);
            opacity: 0;
            transition: opacity var(--transition-smooth);
        }

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

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

        .feature-icon {
            width: 56px;
            height: 56px;
            margin: 0 auto 18px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
        }

        .feature-icon.cyan {
            background: rgba(0, 212, 255, 0.12);
            color: var(--accent-cyan);
            box-shadow: 0 0 18px rgba(0, 212, 255, 0.15);
        }

        .feature-icon.purple {
            background: rgba(139, 92, 246, 0.12);
            color: var(--accent-purple);
            box-shadow: 0 0 18px rgba(139, 92, 246, 0.15);
        }

        .feature-icon.green {
            background: rgba(16, 232, 115, 0.12);
            color: var(--accent-green);
            box-shadow: 0 0 18px rgba(16, 232, 115, 0.15);
        }

        .feature-icon.pink {
            background: rgba(244, 63, 124, 0.12);
            color: var(--accent-pink);
            box-shadow: 0 0 18px rgba(244, 63, 124, 0.15);
        }

        .feature-card h3 {
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 1.1rem;
            color: #fff;
            margin-bottom: 8px;
        }

        .feature-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ========== CATEGORY ENTRY ========== */
        .category-entry-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            align-items: center;
        }

        @media (max-width: 768px) {
            .category-entry-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        .category-entry-visual {
            border-radius: var(--radius-xl);
            overflow: hidden;
            position: relative;
            aspect-ratio: 16 / 10;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-subtle);
        }

        .category-entry-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }

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

        .category-entry-visual::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 50%, rgba(6, 11, 20, 0.7) 100%);
            pointer-events: none;
        }

        .category-entry-info h3 {
            font-family: var(--font-display);
            font-weight: 800;
            font-size: 1.8rem;
            color: #fff;
            margin-bottom: 14px;
            line-height: 1.3;
        }

        .category-entry-info p {
            font-size: 1rem;
            color: var(--text-secondary);
            margin-bottom: 22px;
            line-height: 1.8;
        }

        .category-entry-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 22px;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            padding: 6px 14px;
            border-radius: var(--radius-full);
            font-size: 0.82rem;
            font-weight: 600;
            background: rgba(255, 255, 255, 0.04);
            color: var(--text-secondary);
            border: 1px solid var(--border-subtle);
            transition: all var(--transition-fast);
        }

        .tag:hover {
            background: rgba(0, 212, 255, 0.08);
            border-color: rgba(0, 212, 255, 0.3);
            color: var(--accent-cyan);
        }

        .btn-link-arrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--accent-cyan);
            transition: all var(--transition-fast);
        }

        .btn-link-arrow:hover {
            gap: 14px;
            color: #6ee7ff;
        }

        .btn-link-arrow .arrow {
            display: inline-block;
            transition: transform var(--transition-fast);
        }

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

        /* ========== GAMES SHOWCASE ========== */
        .games-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }

        @media (max-width: 1024px) {
            .games-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .games-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
        }

        .game-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-smooth);
            cursor: pointer;
        }

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

        .game-card-thumb {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            position: relative;
        }

        .game-card-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }

        .game-card:hover .game-card-thumb img {
            transform: scale(1.06);
        }

        .game-card-badge {
            position: absolute;
            top: 14px;
            right: 14px;
            padding: 5px 12px;
            border-radius: var(--radius-full);
            font-size: 0.75rem;
            font-weight: 700;
            background: rgba(0, 0, 0, 0.7);
            color: var(--accent-green);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(16, 232, 115, 0.3);
        }

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

        .game-card-body h4 {
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 1rem;
            color: #fff;
            margin-bottom: 6px;
        }

        .game-card-body .game-meta {
            font-size: 0.82rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 14px;
        }

        /* ========== STATS ========== */
        .stats-section {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            text-align: center;
        }

        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 28px;
            }
        }

        @media (max-width: 420px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
        }

        .stat-item .stat-number {
            font-family: var(--font-display);
            font-weight: 900;
            font-size: clamp(2rem, 4vw, 3rem);
            background: linear-gradient(135deg, var(--accent-cyan), #fff 60%, var(--accent-purple));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            line-height: 1.1;
        }

        .stat-item .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 6px;
            font-weight: 500;
        }

        /* ========== CMS LIST ========== */
        .cms-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 18px;
        }

        @media (max-width: 768px) {
            .cms-list {
                grid-template-columns: 1fr;
                gap: 14px;
            }
        }

        .cms-list-item {
            display: flex;
            gap: 16px;
            padding: 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            transition: all var(--transition-smooth);
            align-items: flex-start;
        }

        .cms-list-item:hover {
            border-color: var(--border-glow);
            box-shadow: var(--shadow-card-hover);
            background: var(--bg-card-hover);
        }

        .cms-list-thumb {
            width: 90px;
            height: 70px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            background: var(--bg-secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--text-dim);
        }

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

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

        .cms-list-info h4 {
            font-weight: 700;
            font-size: 0.98rem;
            color: #fff;
            margin-bottom: 5px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .cms-list-info .cms-meta {
            font-size: 0.78rem;
            color: var(--text-muted);
            display: flex;
            gap: 12px;
            align-items: center;
        }

        .cms-empty {
            text-align: center;
            padding: 50px 20px;
            color: var(--text-muted);
            font-size: 1rem;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px dashed var(--border-light);
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

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

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            font-weight: 700;
            font-size: 1rem;
            color: #fff;
            text-align: left;
            transition: all var(--transition-fast);
            gap: 16px;
        }

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

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: all var(--transition-fast);
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .faq-item.open .faq-icon {
            background: rgba(0, 212, 255, 0.15);
            color: var(--accent-cyan);
            transform: rotate(45deg);
        }

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

        .faq-item.open .faq-answer {
            max-height: 300px;
        }

        .faq-answer-inner {
            padding: 0 24px 20px;
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.8;
        }

        /* ========== CTA ========== */
        .cta-section {
            text-align: center;
            position: relative;
        }

        .cta-card {
            background: linear-gradient(135deg, rgba(0, 212, 255, 0.06), rgba(139, 92, 246, 0.08));
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-xl);
            padding: 56px 40px;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-glow-cyan);
        }

        .cta-card::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(0, 212, 255, 0.06);
            pointer-events: none;
        }

        .cta-card::after {
            content: '';
            position: absolute;
            bottom: -30px;
            left: -30px;
            width: 140px;
            height: 140px;
            border-radius: 50%;
            background: rgba(139, 92, 246, 0.06);
            pointer-events: none;
        }

        .cta-card h2 {
            font-family: var(--font-display);
            font-weight: 900;
            font-size: clamp(1.6rem, 3.5vw, 2.2rem);
            color: #fff;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }

        .cta-card p {
            font-size: 1.05rem;
            color: var(--text-secondary);
            margin-bottom: 28px;
            position: relative;
            z-index: 1;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-card .btn-primary {
            position: relative;
            z-index: 1;
        }

        @media (max-width: 768px) {
            .cta-card {
                padding: 40px 22px;
            }
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-primary);
            border-top: 1px solid var(--border-subtle);
            padding: 48px 0 32px;
        }

        .footer-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 20px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text-primary);
        }

        .footer-brand .logo-icon {
            width: 30px;
            height: 30px;
            font-size: 0.8rem;
        }

        .footer-links {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
        }

        .footer-links a {
            font-size: 0.88rem;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

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

        .footer-copy {
            font-size: 0.82rem;
            color: var(--text-dim);
            width: 100%;
            text-align: center;
            margin-top: 20px;
            padding-top: 20px;
            border-top: 1px solid var(--border-subtle);
        }

        @media (max-width: 768px) {
            .footer-inner {
                flex-direction: column;
                text-align: center;
            }
            .footer-links {
                justify-content: center;
            }
        }

        /* ========== MOBILE OVERLAY ========== */
        .mobile-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.6);
            z-index: 998;
            transition: opacity var(--transition-smooth);
        }

        .mobile-overlay.show {
            display: block;
        }

        /* ========== ANIMATIONS ========== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .animate-in {
            animation: fadeInUp 0.7s ease-out forwards;
        }

        /* ========== UTILITY ========== */
        .text-glow-cyan {
            text-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
        }

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

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

/* roulang page: category1 */
:root {
            --bg-deep: #08081a;
            --bg-panel: #0f0f24;
            --bg-card: #151530;
            --bg-card-hover: #1a1a3d;
            --bg-nav: rgba(10, 10, 30, 0.92);
            --neon-blue: #00d4ff;
            --neon-blue-glow: rgba(0, 212, 255, 0.35);
            --neon-purple: #b347ea;
            --neon-purple-glow: rgba(179, 71, 234, 0.4);
            --neon-cyan: #00ffc8;
            --neon-cyan-glow: rgba(0, 255, 200, 0.3);
            --accent-pink: #ff4088;
            --text-primary: #e8e8f4;
            --text-secondary: #b0b0cc;
            --text-muted: #7a7a9e;
            --text-heading: #f0f0ff;
            --border-subtle: rgba(255, 255, 255, 0.06);
            --border-glow: rgba(0, 212, 255, 0.25);
            --border-card: rgba(255, 255, 255, 0.08);
            --shadow-neon-sm: 0 0 12px rgba(0, 212, 255, 0.15);
            --shadow-neon-md: 0 0 28px rgba(0, 212, 255, 0.22);
            --shadow-neon-lg: 0 0 50px rgba(179, 71, 234, 0.25);
            --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.5);
            --shadow-card-hover: 0 8px 40px rgba(0, 212, 255, 0.18), 0 4px 20px rgba(0, 0, 0, 0.6);
            --radius-xs: 6px;
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 22px;
            --radius-xl: 28px;
            --radius-full: 9999px;
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --font-mono: 'SF Mono', 'Cascadia Code', 'Consolas', 'Menlo', monospace;
            --space-xs: 6px;
            --space-sm: 12px;
            --space-md: 20px;
            --space-lg: 32px;
            --space-xl: 48px;
            --space-2xl: 64px;
            --space-3xl: 80px;
            --container-max: 1200px;
            --container-narrow: 960px;
            --nav-height: 68px;
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.8, 0.25, 1.2);
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.65;
            min-height: 100vh;
            overflow-x: hidden;
            background-image:
                radial-gradient(ellipse at 15% 20%, rgba(0, 212, 255, 0.06) 0%, transparent 55%),
                radial-gradient(ellipse at 78% 60%, rgba(179, 71, 234, 0.07) 0%, transparent 55%),
                radial-gradient(ellipse at 50% 85%, rgba(0, 255, 200, 0.04) 0%, transparent 50%);
            background-attachment: fixed;
        }

        a {
            color: var(--neon-blue);
            text-decoration: none;
            transition: color var(--transition-fast), text-shadow var(--transition-fast);
        }
        a:hover {
            color: var(--neon-cyan);
            text-shadow: 0 0 10px var(--neon-cyan-glow);
        }
        a:focus-visible {
            outline: 2px solid var(--neon-blue);
            outline-offset: 3px;
            border-radius: var(--radius-xs);
        }

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

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

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--text-heading);
            line-height: 1.3;
            font-weight: 700;
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--space-md);
        }
        .container--narrow {
            max-width: var(--container-narrow);
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--bg-nav);
            backdrop-filter: blur(18px) saturate(140%);
            -webkit-backdrop-filter: blur(18px) saturate(140%);
            border-bottom: 1px solid var(--border-subtle);
            box-shadow: 0 2px 30px rgba(0, 0, 0, 0.4);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: background var(--transition-base), border-color var(--transition-base);
        }
        .site-header.scrolled {
            border-bottom-color: var(--border-glow);
            box-shadow: 0 2px 36px rgba(0, 212, 255, 0.08), 0 2px 30px rgba(0, 0, 0, 0.45);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: var(--space-xs);
            font-weight: 800;
            font-size: 1.35rem;
            color: var(--text-heading);
            letter-spacing: -0.02em;
            white-space: nowrap;
            transition: color var(--transition-fast), text-shadow var(--transition-fast);
            text-decoration: none;
        }
        .logo-link:hover {
            color: var(--neon-blue);
            text-shadow: 0 0 18px var(--neon-blue-glow);
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--neon-blue), var(--neon-purple));
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 900;
            font-size: 1.2rem;
            box-shadow: 0 0 20px var(--neon-blue-glow);
            flex-shrink: 0;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: var(--space-lg);
        }
        .nav-link {
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-secondary);
            padding: var(--space-xs) var(--space-sm);
            border-radius: var(--radius-xs);
            transition: color var(--transition-fast), background var(--transition-fast), text-shadow var(--transition-fast);
            position: relative;
            text-decoration: none;
        }
        .nav-link:hover {
            color: var(--neon-blue);
            text-shadow: 0 0 8px var(--neon-blue-glow);
            background: rgba(0, 212, 255, 0.06);
        }
        .nav-link.active {
            color: var(--neon-cyan);
            font-weight: 700;
            text-shadow: 0 0 12px var(--neon-cyan-glow);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 22px;
            height: 3px;
            background: var(--neon-cyan);
            border-radius: var(--radius-full);
            box-shadow: 0 0 10px var(--neon-cyan-glow);
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 20px;
            background: linear-gradient(135deg, var(--neon-blue), var(--neon-purple));
            color: #fff;
            font-weight: 700;
            font-size: 0.9rem;
            border-radius: var(--radius-full);
            text-decoration: none;
            box-shadow: 0 0 18px var(--neon-blue-glow), 0 4px 16px rgba(0, 0, 0, 0.4);
            transition: all var(--transition-base);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }
        .nav-cta:hover {
            box-shadow: 0 0 30px var(--neon-purple-glow), 0 6px 24px rgba(0, 0, 0, 0.5);
            transform: translateY(-2px);
            color: #fff;
            text-shadow: 0 0 4px rgba(255, 255, 255, 0.6);
        }
        .nav-cta:active {
            transform: scale(0.96);
            transition: transform 0.1s ease;
        }
        .mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 8px;
            z-index: 1001;
            background: transparent;
            border: none;
            border-radius: var(--radius-xs);
        }
        .mobile-toggle span {
            width: 26px;
            height: 2.5px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all var(--transition-base);
        }
        .mobile-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .mobile-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .mobile-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        @media (max-width: 768px) {
            .mobile-toggle {
                display: flex;
            }
            .nav-menu {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--bg-panel);
                flex-direction: column;
                gap: 0;
                padding: var(--space-md) 0;
                border-bottom: 1px solid var(--border-glow);
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.7);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: all var(--transition-base);
                z-index: 999;
            }
            .nav-menu.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-link {
                padding: var(--space-sm) var(--space-lg);
                font-size: 1.05rem;
                width: 100%;
                text-align: center;
                border-radius: 0;
            }
            .nav-link.active::after {
                bottom: 0;
                width: 40px;
                height: 2px;
            }
            .nav-cta {
                margin: var(--space-sm) auto 0;
                padding: 10px 28px;
                font-size: 0.95rem;
            }
        }

        /* ========== PAGE HERO ========== */
        .page-hero {
            position: relative;
            padding: var(--space-3xl) 0 var(--space-2xl);
            text-align: center;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg,
                    rgba(8, 8, 26, 0.78) 0%,
                    rgba(15, 15, 36, 0.88) 40%,
                    rgba(8, 8, 26, 0.95) 100%);
            z-index: 1;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 600px;
            height: 3px;
            background: linear-gradient(90deg, transparent, var(--neon-blue), var(--neon-purple), transparent);
            box-shadow: 0 0 40px var(--neon-blue-glow);
            z-index: 2;
            border-radius: var(--radius-full);
        }
        .page-hero .container {
            position: relative;
            z-index: 3;
        }
        .breadcrumb {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: var(--space-md);
            flex-wrap: wrap;
            justify-content: center;
        }
        .breadcrumb a {
            color: var(--text-secondary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        .breadcrumb a:hover {
            color: var(--neon-blue);
            text-shadow: none;
        }
        .breadcrumb .sep {
            color: var(--text-muted);
            user-select: none;
        }
        .breadcrumb .current {
            color: var(--neon-cyan);
            font-weight: 600;
        }
        .page-hero-title {
            font-size: 2.8rem;
            font-weight: 900;
            letter-spacing: -0.03em;
            background: linear-gradient(135deg, var(--neon-cyan) 0%, var(--neon-blue) 40%, var(--neon-purple) 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: var(--space-sm);
            line-height: 1.2;
        }
        .page-hero-desc {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 620px;
            margin: 0 auto var(--space-lg);
            line-height: 1.6;
        }
        .page-hero-stats {
            display: flex;
            justify-content: center;
            gap: var(--space-xl);
            flex-wrap: wrap;
        }
        .hero-stat {
            text-align: center;
        }
        .hero-stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--neon-blue);
            text-shadow: 0 0 16px var(--neon-blue-glow);
            font-family: var(--font-mono);
        }
        .hero-stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 2px;
        }

        @media (max-width: 768px) {
            .page-hero {
                padding: var(--space-2xl) 0 var(--space-xl);
            }
            .page-hero-title {
                font-size: 2rem;
            }
            .page-hero-desc {
                font-size: 0.95rem;
            }
            .hero-stat-num {
                font-size: 1.5rem;
            }
            .page-hero-stats {
                gap: var(--space-lg);
            }
        }
        @media (max-width: 520px) {
            .page-hero-title {
                font-size: 1.6rem;
            }
            .page-hero-stats {
                gap: var(--space-md);
            }
            .hero-stat-num {
                font-size: 1.25rem;
            }
        }

        /* ========== FILTER TAGS BAR ========== */
        .filter-bar {
            padding: var(--space-lg) 0 var(--space-md);
            border-bottom: 1px solid var(--border-subtle);
            margin-bottom: var(--space-xl);
        }
        .filter-bar-inner {
            display: flex;
            align-items: center;
            gap: var(--space-sm);
            flex-wrap: wrap;
        }
        .filter-label {
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-right: var(--space-xs);
            white-space: nowrap;
        }
        .filter-tag {
            display: inline-flex;
            align-items: center;
            padding: 7px 16px;
            border-radius: var(--radius-full);
            font-size: 0.85rem;
            font-weight: 600;
            cursor: pointer;
            border: 1px solid var(--border-card);
            color: var(--text-secondary);
            background: var(--bg-card);
            transition: all var(--transition-fast);
            white-space: nowrap;
            user-select: none;
        }
        .filter-tag:hover {
            border-color: var(--border-glow);
            color: var(--neon-blue);
            box-shadow: 0 0 12px rgba(0, 212, 255, 0.1);
            background: var(--bg-card-hover);
        }
        .filter-tag.active {
            background: linear-gradient(135deg, rgba(0, 212, 255, 0.18), rgba(179, 71, 234, 0.15));
            border-color: var(--neon-blue);
            color: var(--neon-cyan);
            box-shadow: 0 0 16px var(--neon-blue-glow);
            font-weight: 700;
        }
        .filter-tag:focus-visible {
            outline: 2px solid var(--neon-blue);
            outline-offset: 2px;
        }

        @media (max-width: 520px) {
            .filter-bar-inner {
                gap: 8px;
            }
            .filter-tag {
                padding: 5px 12px;
                font-size: 0.78rem;
            }
        }

        /* ========== ARTICLES GRID ========== */
        .articles-section {
            padding: var(--space-lg) 0 var(--space-2xl);
        }
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--space-lg);
        }
        .article-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-card);
            overflow: hidden;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-card);
            display: flex;
            flex-direction: column;
            height: 100%;
            position: relative;
        }
        .article-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--border-glow);
            background: var(--bg-card-hover);
        }
        .article-card-image {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background: var(--bg-panel);
        }
        .article-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .article-card:hover .article-card-image img {
            transform: scale(1.06);
        }
        .article-card-image .tag-badge {
            position: absolute;
            top: var(--space-sm);
            left: var(--space-sm);
            display: inline-block;
            padding: 4px 10px;
            font-size: 0.75rem;
            font-weight: 700;
            border-radius: var(--radius-full);
            background: rgba(0, 0, 0, 0.7);
            color: var(--neon-cyan);
            border: 1px solid rgba(0, 255, 200, 0.4);
            backdrop-filter: blur(6px);
            z-index: 2;
            letter-spacing: 0.02em;
        }
        .article-card-body {
            padding: var(--space-md);
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: var(--space-xs);
        }
        .article-card-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-heading);
            line-height: 1.4;
            transition: color var(--transition-fast);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .article-card:hover .article-card-title {
            color: var(--neon-blue);
        }
        .article-card-excerpt {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }
        .article-card-meta {
            display: flex;
            align-items: center;
            gap: var(--space-sm);
            font-size: 0.78rem;
            color: var(--text-muted);
            padding-top: var(--space-xs);
            border-top: 1px solid var(--border-subtle);
            margin-top: auto;
        }
        .article-card-meta .meta-dot {
            width: 5px;
            height: 5px;
            border-radius: 50%;
            background: var(--neon-blue);
            box-shadow: 0 0 6px var(--neon-blue-glow);
        }
        .article-card-link {
            position: absolute;
            inset: 0;
            z-index: 3;
            text-indent: -9999px;
            overflow: hidden;
        }

        @media (max-width: 1024px) {
            .articles-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: var(--space-md);
            }
        }
        @media (max-width: 600px) {
            .articles-grid {
                grid-template-columns: 1fr;
                gap: var(--space-md);
            }
            .article-card-title {
                font-size: 0.95rem;
            }
        }

        /* ========== FEATURED / HOT RANKING ========== */
        .ranking-section {
            padding: var(--space-2xl) 0;
            background: var(--bg-panel);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
            position: relative;
        }
        .ranking-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 300px;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--neon-purple), transparent);
            box-shadow: 0 0 20px var(--neon-purple-glow);
        }
        .section-header {
            text-align: center;
            margin-bottom: var(--space-xl);
        }
        .section-header h2 {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-heading);
        }
        .section-header h2 .accent {
            background: linear-gradient(135deg, var(--neon-cyan), var(--neon-blue));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .section-header p {
            color: var(--text-muted);
            margin-top: var(--space-xs);
            font-size: 0.95rem;
        }
        .ranking-list {
            max-width: 700px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: var(--space-sm);
        }
        .ranking-item {
            display: flex;
            align-items: center;
            gap: var(--space-md);
            padding: var(--space-md);
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-card);
            transition: all var(--transition-base);
            position: relative;
        }
        .ranking-item:hover {
            border-color: var(--border-glow);
            box-shadow: 0 0 18px rgba(0, 212, 255, 0.08);
            background: var(--bg-card-hover);
        }
        .ranking-num {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 1.1rem;
            flex-shrink: 0;
            font-family: var(--font-mono);
        }
        .ranking-num.top1 {
            background: linear-gradient(135deg, #ffb800, #ff6b00);
            color: #fff;
            box-shadow: 0 0 20px rgba(255, 184, 0, 0.5);
        }
        .ranking-num.top2 {
            background: linear-gradient(135deg, #b0b0cc, #707090);
            color: #fff;
            box-shadow: 0 0 14px rgba(176, 176, 204, 0.35);
        }
        .ranking-num.top3 {
            background: linear-gradient(135deg, #c08040, #8b5a2b);
            color: #fff;
            box-shadow: 0 0 14px rgba(192, 128, 64, 0.4);
        }
        .ranking-num.normal {
            background: var(--bg-panel);
            color: var(--text-muted);
            border: 1px solid var(--border-card);
        }
        .ranking-info {
            flex: 1;
            min-width: 0;
        }
        .ranking-title {
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--text-primary);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .ranking-meta {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-top: 2px;
        }
        .ranking-badge {
            padding: 4px 10px;
            font-size: 0.72rem;
            font-weight: 700;
            border-radius: var(--radius-full);
            background: rgba(0, 212, 255, 0.1);
            color: var(--neon-blue);
            border: 1px solid rgba(0, 212, 255, 0.3);
            white-space: nowrap;
            flex-shrink: 0;
        }

        @media (max-width: 600px) {
            .ranking-item {
                padding: var(--space-sm);
                gap: var(--space-sm);
            }
            .ranking-num {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
            }
            .ranking-title {
                font-size: 0.85rem;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            padding: var(--space-3xl) 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 700px;
            height: 700px;
            background: radial-gradient(circle, rgba(0, 212, 255, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-card {
            background: var(--bg-card);
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-xl);
            padding: var(--space-2xl) var(--space-xl);
            max-width: 650px;
            margin: 0 auto;
            box-shadow: var(--shadow-neon-lg), var(--shadow-card);
            position: relative;
            overflow: hidden;
        }
        .cta-card::after {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 140px;
            height: 140px;
            background: radial-gradient(circle, rgba(0, 212, 255, 0.2) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-card h2 {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: var(--space-sm);
            color: var(--text-heading);
            position: relative;
            z-index: 1;
        }
        .cta-card p {
            color: var(--text-secondary);
            margin-bottom: var(--space-lg);
            font-size: 1rem;
            position: relative;
            z-index: 1;
        }
        .btn-glow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            font-size: 1rem;
            font-weight: 700;
            border-radius: var(--radius-full);
            background: linear-gradient(135deg, var(--neon-blue), var(--neon-purple));
            color: #fff;
            text-decoration: none;
            box-shadow: 0 0 28px var(--neon-blue-glow), 0 6px 20px rgba(0, 0, 0, 0.45);
            transition: all var(--transition-base);
            letter-spacing: 0.02em;
            position: relative;
            z-index: 1;
            cursor: pointer;
        }
        .btn-glow:hover {
            box-shadow: 0 0 44px var(--neon-purple-glow), 0 8px 28px rgba(0, 0, 0, 0.55);
            transform: translateY(-3px);
            color: #fff;
            text-shadow: 0 0 6px rgba(255, 255, 255, 0.5);
        }
        .btn-glow:active {
            transform: scale(0.95);
            transition: transform 0.1s ease;
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 12px 26px;
            font-size: 0.95rem;
            font-weight: 700;
            border-radius: var(--radius-full);
            border: 2px solid var(--neon-blue);
            color: var(--neon-blue);
            background: transparent;
            text-decoration: none;
            transition: all var(--transition-base);
            cursor: pointer;
            position: relative;
            z-index: 1;
        }
        .btn-outline:hover {
            background: rgba(0, 212, 255, 0.1);
            box-shadow: 0 0 20px var(--neon-blue-glow);
            color: var(--neon-cyan);
            border-color: var(--neon-cyan);
        }

        @media (max-width: 600px) {
            .cta-card {
                padding: var(--space-xl) var(--space-md);
            }
            .cta-card h2 {
                font-size: 1.4rem;
            }
            .btn-glow {
                padding: 12px 24px;
                font-size: 0.9rem;
            }
        }

        /* ========== FAQ ========== */
        .faq-section {
            padding: var(--space-2xl) 0 var(--space-3xl);
        }
        .faq-list {
            max-width: 750px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: var(--space-sm);
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            border-color: var(--border-glow);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: var(--space-md);
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: var(--space-sm);
            background: transparent;
            border: none;
            transition: color var(--transition-fast);
        }
        .faq-question:hover {
            color: var(--neon-blue);
        }
        .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--bg-panel);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            color: var(--neon-blue);
            transition: all var(--transition-base);
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: rgba(0, 212, 255, 0.15);
            color: var(--neon-cyan);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base), padding var(--transition-base);
            padding: 0 var(--space-md);
            color: var(--text-secondary);
            font-size: 0.88rem;
            line-height: 1.6;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 var(--space-md) var(--space-md);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-panel);
            border-top: 1px solid var(--border-subtle);
            padding: var(--space-xl) 0;
            text-align: center;
            position: relative;
        }
        .site-footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 200px;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.5), transparent);
        }
        .footer-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: var(--space-md);
            margin-bottom: var(--space-md);
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: var(--space-xs);
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-heading);
        }
        .footer-brand .logo-icon {
            width: 30px;
            height: 30px;
            font-size: 0.9rem;
            border-radius: var(--radius-xs);
        }
        .footer-links {
            display: flex;
            gap: var(--space-lg);
            flex-wrap: wrap;
        }
        .footer-links a {
            color: var(--text-secondary);
            font-size: 0.85rem;
            font-weight: 500;
            transition: color var(--transition-fast);
            text-decoration: none;
        }
        .footer-links a:hover {
            color: var(--neon-blue);
            text-shadow: 0 0 8px var(--neon-blue-glow);
        }
        .footer-copy {
            color: var(--text-muted);
            font-size: 0.78rem;
            line-height: 1.5;
        }

        @media (max-width: 600px) {
            .footer-inner {
                flex-direction: column;
                text-align: center;
                gap: var(--space-sm);
            }
            .footer-links {
                gap: var(--space-md);
                justify-content: center;
            }
        }

        /* ========== UTILITY ANIMATIONS ========== */
        @keyframes pulse-glow {
            0%,
            100% {
                box-shadow: 0 0 18px var(--neon-blue-glow);
            }
            50% {
                box-shadow: 0 0 34px var(--neon-blue-glow), 0 0 50px var(--neon-purple-glow);
            }
        }
        .animate-pulse-glow {
            animation: pulse-glow 2.5s ease-in-out infinite;
        }

        /* ========== SCROLLBAR ========== */
        ::-webkit-scrollbar {
            width: 7px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-deep);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--bg-card);
            border-radius: var(--radius-full);
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #2a2a50;
        }

/* roulang page: article */
:root {
            --bg-deep: #08080f;
            --bg-panel: #0e0e1a;
            --bg-card: #14141f;
            --bg-card-hover: #1a1a2a;
            --bg-surface: #181825;
            --neon-cyan: #00e5ff;
            --neon-cyan-dim: rgba(0, 229, 255, 0.35);
            --neon-cyan-glow: rgba(0, 229, 255, 0.18);
            --neon-magenta: #ff2d95;
            --neon-magenta-glow: rgba(255, 45, 149, 0.22);
            --neon-purple: #b347ea;
            --neon-purple-glow: rgba(179, 71, 234, 0.2);
            --neon-amber: #ffb830;
            --text-primary: #e8e8f0;
            --text-secondary: #b0b0c0;
            --text-weak: #787890;
            --text-inverse: #08080f;
            --border-subtle: rgba(255, 255, 255, 0.08);
            --border-neon: rgba(0, 229, 255, 0.3);
            --border-card: rgba(255, 255, 255, 0.06);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-neon-cyan: 0 0 18px rgba(0, 229, 255, 0.35), 0 0 50px rgba(0, 229, 255, 0.12);
            --shadow-neon-magenta: 0 0 18px rgba(255, 45, 149, 0.3), 0 0 50px rgba(255, 45, 149, 0.1);
            --shadow-card: 0 2px 16px rgba(0, 0, 0, 0.4);
            --shadow-card-hover: 0 8px 36px rgba(0, 0, 0, 0.55), 0 0 28px rgba(0, 229, 255, 0.1);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s ease;
            --header-height: 68px;
            --container-max: 1180px;
            --container-narrow: 820px;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.68;
            color: var(--text-primary);
            background-color: var(--bg-deep);
            background-image:
                radial-gradient(ellipse at 15% 20%, rgba(0, 229, 255, 0.025) 0%, transparent 60%),
                radial-gradient(ellipse at 80% 60%, rgba(255, 45, 149, 0.02) 0%, transparent 55%),
                radial-gradient(ellipse at 50% 85%, rgba(179, 71, 234, 0.018) 0%, transparent 55%);
            min-height: 100vh;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }

        input,
        textarea {
            font-family: inherit;
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .container-narrow {
            width: 100%;
            max-width: var(--container-narrow);
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ========== Header & Nav ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(10, 10, 18, 0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            height: var(--header-height);
            display: flex;
            align-items: center;
            transition: background var(--transition-base), border-color var(--transition-base);
        }

        .site-header.scrolled {
            background: rgba(8, 8, 15, 0.94);
            border-bottom-color: rgba(0, 229, 255, 0.18);
            box-shadow: 0 2px 24px rgba(0, 0, 0, 0.5);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            width: 100%;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--text-primary);
            white-space: nowrap;
            letter-spacing: 0.02em;
            transition: color var(--transition-fast);
        }

        .brand-logo:hover {
            color: var(--neon-cyan);
        }

        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--neon-cyan), var(--neon-purple));
            color: var(--text-inverse);
            font-weight: 800;
            font-size: 1.15rem;
            flex-shrink: 0;
            box-shadow: 0 0 14px rgba(0, 229, 255, 0.4);
            transition: box-shadow var(--transition-base), transform var(--transition-fast);
        }

        .brand-logo:hover .logo-icon {
            box-shadow: 0 0 24px rgba(0, 229, 255, 0.6), 0 0 48px rgba(179, 71, 234, 0.25);
            transform: scale(1.05);
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: 22px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }

        .nav-link:hover {
            color: var(--neon-cyan);
            background: rgba(0, 229, 255, 0.06);
        }

        .nav-link.active {
            color: var(--neon-cyan);
            background: rgba(0, 229, 255, 0.1);
            box-shadow: 0 0 10px rgba(0, 229, 255, 0.15);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 9px 20px;
            border-radius: 24px;
            font-size: 0.9rem;
            font-weight: 600;
            background: linear-gradient(135deg, var(--neon-magenta), #e02d80);
            color: #fff;
            box-shadow: 0 0 16px rgba(255, 45, 149, 0.35);
            transition: all var(--transition-base);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }

        .nav-cta:hover {
            box-shadow: 0 0 28px rgba(255, 45, 149, 0.55), 0 0 50px rgba(255, 45, 149, 0.2);
            transform: translateY(-1px);
            color: #fff;
        }

        .nav-cta:active {
            transform: translateY(0);
            box-shadow: 0 0 10px rgba(255, 45, 149, 0.3);
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 6px;
            cursor: pointer;
            z-index: 1001;
            background: transparent;
            border: none;
        }

        .hamburger span {
            display: block;
            width: 26px;
            height: 2.5px;
            border-radius: 2px;
            background: var(--text-primary);
            transition: all var(--transition-fast);
        }

        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }

        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ========== Article Banner ========== */
        .article-banner {
            position: relative;
            min-height: 240px;
            display: flex;
            align-items: center;
            background: url('/assets/images/backpic/back-1.png') center / cover no-repeat;
            background-color: var(--bg-panel);
            border-bottom: 1px solid var(--border-subtle);
            overflow: hidden;
        }

        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(8, 8, 15, 0.55) 0%, rgba(8, 8, 15, 0.82) 60%, rgba(8, 8, 15, 0.95) 100%);
            z-index: 1;
        }

        .article-banner::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--neon-cyan), var(--neon-magenta), transparent);
            z-index: 2;
            opacity: 0.7;
        }

        .article-banner-content {
            position: relative;
            z-index: 3;
            padding: 40px 0 30px;
            width: 100%;
        }

        .article-banner .breadcrumb {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            color: var(--text-weak);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }

        .article-banner .breadcrumb a {
            color: var(--neon-cyan);
            transition: color var(--transition-fast);
        }

        .article-banner .breadcrumb a:hover {
            color: #fff;
        }

        .article-banner .breadcrumb .sep {
            color: var(--text-weak);
            font-size: 0.7rem;
        }

        .article-banner h1 {
            font-size: 2rem;
            font-weight: 700;
            line-height: 1.35;
            color: #fff;
            letter-spacing: 0.01em;
            text-shadow: 0 0 30px rgba(0, 229, 255, 0.3);
        }

        /* ========== Article Meta ========== */
        .article-meta-bar {
            background: var(--bg-panel);
            border-bottom: 1px solid var(--border-subtle);
            padding: 16px 0;
        }

        .article-meta-inner {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .article-category-tag {
            display: inline-flex;
            align-items: center;
            padding: 5px 14px;
            border-radius: 20px;
            font-size: 0.82rem;
            font-weight: 600;
            background: rgba(0, 229, 255, 0.12);
            color: var(--neon-cyan);
            border: 1px solid rgba(0, 229, 255, 0.25);
            letter-spacing: 0.02em;
        }

        .article-meta-date {
            font-size: 0.88rem;
            color: var(--text-weak);
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .article-meta-date::before {
            content: '📅';
            font-size: 0.85rem;
        }

        .article-meta-read {
            font-size: 0.88rem;
            color: var(--text-weak);
            display: flex;
            align-items: center;
            gap: 5px;
            margin-left: auto;
        }

        .article-meta-read::before {
            content: '👁';
            font-size: 0.85rem;
        }

        /* ========== Featured Image ========== */
        .article-featured-img {
            padding: 28px 0 8px;
            text-align: center;
        }

        .article-featured-img img {
            border-radius: var(--radius-lg);
            max-height: 420px;
            width: 100%;
            object-fit: cover;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-subtle);
            transition: box-shadow var(--transition-base);
        }

        .article-featured-img img:hover {
            box-shadow: var(--shadow-card-hover);
        }

        /* ========== Article Body ========== */
        .article-body-section {
            padding: 28px 0 50px;
        }

        .article-body {
            color: var(--text-primary);
            font-size: 1.05rem;
            line-height: 1.85;
            letter-spacing: 0.01em;
        }

        .article-body h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: #fff;
            margin: 36px 0 16px;
            padding-left: 14px;
            border-left: 3px solid var(--neon-cyan);
            line-height: 1.35;
        }

        .article-body h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--neon-cyan);
            margin: 28px 0 12px;
        }

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

        .article-body ul,
        .article-body ol {
            margin: 12px 0 20px 20px;
            color: var(--text-secondary);
        }

        .article-body li {
            margin-bottom: 8px;
        }

        .article-body strong {
            color: #fff;
            font-weight: 600;
        }

        .article-body blockquote {
            margin: 24px 0;
            padding: 18px 24px;
            border-radius: var(--radius-md);
            background: var(--bg-card);
            border-left: 3px solid var(--neon-magenta);
            color: var(--text-secondary);
            font-style: italic;
        }

        .article-body img {
            border-radius: var(--radius-md);
            margin: 20px auto;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-subtle);
        }

        .article-body a {
            color: var(--neon-cyan);
            border-bottom: 1px dashed rgba(0, 229, 255, 0.4);
            transition: all var(--transition-fast);
        }

        .article-body a:hover {
            color: #fff;
            border-bottom-color: #fff;
        }

        /* Not Found State */
        .article-not-found {
            text-align: center;
            padding: 60px 20px;
            color: var(--text-secondary);
        }

        .article-not-found .nf-icon {
            font-size: 4rem;
            display: block;
            margin-bottom: 16px;
        }

        .article-not-found h2 {
            font-size: 1.5rem;
            color: #fff;
            margin-bottom: 10px;
            border: none;
            padding: 0;
        }

        .article-not-found p {
            margin-bottom: 20px;
            color: var(--text-weak);
        }

        .btn-back-home {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            border-radius: 24px;
            background: var(--neon-cyan);
            color: var(--text-inverse);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-neon-cyan);
        }

        .btn-back-home:hover {
            box-shadow: 0 0 30px rgba(0, 229, 255, 0.5), 0 0 60px rgba(0, 229, 255, 0.18);
            transform: translateY(-2px);
            color: var(--text-inverse);
        }

        /* ========== Related Posts ========== */
        .related-section {
            padding: 50px 0 60px;
            background: var(--bg-panel);
            border-top: 1px solid var(--border-subtle);
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--neon-cyan);
            margin-bottom: 8px;
        }

        .section-label::before {
            content: '';
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--neon-cyan);
            box-shadow: 0 0 8px var(--neon-cyan);
        }

        .section-title {
            font-size: 1.7rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 32px;
            letter-spacing: 0.01em;
            line-height: 1.3;
        }

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

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

        .related-card:hover {
            border-color: rgba(0, 229, 255, 0.25);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            background: var(--bg-card-hover);
        }

        .related-card-img {
            width: 100%;
            height: 170px;
            object-fit: cover;
            display: block;
            border-bottom: 1px solid var(--border-subtle);
        }

        .related-card-body {
            padding: 16px 18px 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .related-card-tag {
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--neon-cyan);
            margin-bottom: 6px;
            letter-spacing: 0.03em;
        }

        .related-card-title {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            line-height: 1.45;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color var(--transition-fast);
        }

        .related-card:hover .related-card-title {
            color: var(--neon-cyan);
        }

        .related-card-date {
            font-size: 0.8rem;
            color: var(--text-weak);
            margin-top: auto;
        }

        /* ========== CTA Section ========== */
        .cta-section {
            padding: 60px 0;
            text-align: center;
            background: var(--bg-deep);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 229, 255, 0.06) 0%, transparent 70%);
            z-index: 0;
            pointer-events: none;
        }

        .cta-section .container-narrow {
            position: relative;
            z-index: 1;
        }

        .cta-box {
            background: var(--bg-card);
            border-radius: var(--radius-xl);
            padding: 44px 36px;
            border: 1px solid var(--border-card);
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
        }

        .cta-box::after {
            content: '';
            position: absolute;
            top: -1px;
            left: 15%;
            right: 15%;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--neon-magenta), var(--neon-cyan), transparent);
            border-radius: 2px;
        }

        .cta-box h3 {
            font-size: 1.6rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: 0.01em;
        }

        .cta-box p {
            color: var(--text-secondary);
            font-size: 1rem;
            margin-bottom: 24px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn-cta-glow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 34px;
            border-radius: 28px;
            font-size: 1.05rem;
            font-weight: 700;
            background: linear-gradient(135deg, var(--neon-cyan), #00c8e0);
            color: var(--text-inverse);
            letter-spacing: 0.02em;
            box-shadow: var(--shadow-neon-cyan);
            transition: all var(--transition-base);
            position: relative;
        }

        .btn-cta-glow:hover {
            box-shadow: 0 0 36px rgba(0, 229, 255, 0.55), 0 0 70px rgba(0, 229, 255, 0.2);
            transform: translateY(-3px);
            color: var(--text-inverse);
        }

        .btn-cta-glow:active {
            transform: translateY(0);
            box-shadow: var(--shadow-neon-cyan);
        }

        /* ========== FAQ Section ========== */
        .faq-section {
            padding: 50px 0 60px;
            background: var(--bg-panel);
            border-top: 1px solid var(--border-subtle);
        }

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

        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 20px 22px;
            border: 1px solid var(--border-card);
            transition: all var(--transition-base);
            cursor: default;
        }

        .faq-item:hover {
            border-color: rgba(0, 229, 255, 0.18);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
            background: var(--bg-card-hover);
        }

        .faq-item h4 {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 6px;
            display: flex;
            align-items: flex-start;
            gap: 8px;
            line-height: 1.4;
        }

        .faq-item h4 .faq-q {
            color: var(--neon-cyan);
            flex-shrink: 0;
            font-weight: 700;
        }

        .faq-item p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-left: 24px;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid var(--border-subtle);
            padding: 36px 0 28px;
            color: var(--text-weak);
            font-size: 0.88rem;
        }

        .footer-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
            margin-bottom: 18px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 600;
            color: var(--text-primary);
            font-size: 1rem;
        }

        .footer-brand .logo-icon {
            width: 32px;
            height: 32px;
            font-size: 0.95rem;
            border-radius: 6px;
            box-shadow: 0 0 10px rgba(0, 229, 255, 0.3);
        }

        .footer-links {
            display: flex;
            gap: 18px;
            flex-wrap: wrap;
        }

        .footer-links a {
            color: var(--text-weak);
            transition: color var(--transition-fast);
            font-size: 0.88rem;
        }

        .footer-links a:hover {
            color: var(--neon-cyan);
        }

        .footer-copy {
            text-align: center;
            color: var(--text-weak);
            font-size: 0.8rem;
            padding-top: 14px;
            border-top: 1px solid var(--border-subtle);
        }

        /* ========== Mobile Nav Overlay ========== */
        @media (max-width: 768px) {
            .hamburger {
                display: flex;
            }

            .nav-menu {
                position: fixed;
                top: 0;
                right: -100%;
                width: 280px;
                height: 100vh;
                background: rgba(10, 10, 20, 0.96);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                align-items: flex-start;
                padding: 90px 28px 40px;
                gap: 8px;
                transition: right var(--transition-base);
                z-index: 1000;
                border-left: 1px solid var(--border-subtle);
                box-shadow: -4px 0 30px rgba(0, 0, 0, 0.6);
            }

            .nav-menu.open {
                right: 0;
            }

            .nav-link {
                width: 100%;
                padding: 12px 16px;
                font-size: 1rem;
                border-radius: var(--radius-sm);
            }

            .nav-cta {
                width: 100%;
                justify-content: center;
                margin-top: 8px;
                padding: 12px 20px;
                font-size: 1rem;
            }

            .article-banner {
                min-height: 180px;
            }

            .article-banner h1 {
                font-size: 1.45rem;
            }

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

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

            .cta-box {
                padding: 30px 20px;
            }

            .cta-box h3 {
                font-size: 1.3rem;
            }

            .article-body {
                font-size: 0.98rem;
            }

            .article-body h2 {
                font-size: 1.25rem;
            }

            .section-title {
                font-size: 1.35rem;
            }

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

            .footer-links {
                gap: 12px;
            }
        }

        @media (max-width: 520px) {
            .container,
            .container-narrow {
                padding-left: 14px;
                padding-right: 14px;
            }

            .brand-logo {
                font-size: 1rem;
                gap: 6px;
            }

            .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 0.9rem;
            }

            .article-banner {
                min-height: 150px;
            }

            .article-banner h1 {
                font-size: 1.2rem;
            }

            .article-banner-content {
                padding: 24px 0 20px;
            }

            .article-meta-inner {
                gap: 10px;
            }

            .article-meta-read {
                margin-left: 0;
            }

            .article-body {
                font-size: 0.93rem;
                line-height: 1.75;
            }

            .article-body h2 {
                font-size: 1.15rem;
                margin: 24px 0 12px;
                padding-left: 10px;
            }

            .article-body h3 {
                font-size: 1.05rem;
            }

            .related-card-img {
                height: 140px;
            }

            .cta-box h3 {
                font-size: 1.15rem;
            }

            .btn-cta-glow {
                padding: 11px 24px;
                font-size: 0.95rem;
            }

            .faq-item {
                padding: 14px 16px;
            }

            .faq-item h4 {
                font-size: 0.92rem;
            }

            .faq-item p {
                font-size: 0.84rem;
                margin-left: 20px;
            }

            .section-title {
                font-size: 1.2rem;
            }

            .article-featured-img img {
                border-radius: var(--radius-md);
            }
        }