/* roulang page: index */
:root {
            --bg-primary: #0A0E14;
            --bg-secondary: #141A24;
            --bg-tertiary: #060A10;
            --accent-neon: #00E5FF;
            --accent-gold: #FFB800;
            --text-primary: #E8ECF1;
            --text-secondary: #9BA3AF;
            --text-muted: #6B7280;
            --success: #00C853;
            --warning: #FF3D00;
            --border-subtle: rgba(255, 255, 255, 0.05);
            --border-card: rgba(0, 229, 255, 0.15);
            --border-input: #2A303A;
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --transition-fast: 0.2s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.35s ease;
            --glow-neon: 0 0 12px rgba(0, 229, 255, 0.25);
            --glow-neon-strong: 0 0 24px rgba(0, 229, 255, 0.45);
            --glow-gold: 0 0 10px rgba(255, 184, 0, 0.3);
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
            --font-mono: "SF Mono", "Menlo", "Monaco", "Consolas", "Courier New", monospace;
        }

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

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

        body {
            font-family: var(--font-stack);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.8;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

        input,
        select,
        textarea {
            font-family: inherit;
            outline: none;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* Navigation */
        .site-nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: 60px;
            background: rgba(10, 14, 20, 0.95);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-subtle);
            display: flex;
            align-items: center;
            transition: background var(--transition-normal);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-logo .logo-icon {
            width: 32px;
            height: 32px;
            border-radius: var(--radius-sm);
            background: var(--accent-neon);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--bg-primary);
            font-weight: 900;
            font-size: 0.85rem;
            flex-shrink: 0;
        }

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

        .nav-links a {
            display: block;
            padding: 8px 14px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            position: relative;
            transition: color var(--transition-normal), background var(--transition-normal);
            white-space: nowrap;
        }

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

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

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--accent-neon);
            border-radius: 2px;
            box-shadow: var(--glow-neon);
            transition: all var(--transition-normal);
        }

        .nav-cta {
            padding: 8px 18px;
            border: 1px solid var(--accent-neon);
            color: var(--accent-neon);
            border-radius: var(--radius-sm);
            font-size: 0.85rem;
            font-weight: 600;
            background: transparent;
            transition: all var(--transition-normal);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-cta:hover {
            background: var(--accent-neon);
            color: var(--bg-primary);
            box-shadow: var(--glow-neon);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 4px 8px;
            line-height: 1;
        }

        /* Mobile nav */
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: 60px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(10, 14, 20, 0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            z-index: 999;
            flex-direction: column;
            padding: 24px;
            gap: 4px;
            overflow-y: auto;
        }

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

        .mobile-nav-overlay a {
            display: block;
            padding: 14px 18px;
            font-size: 1.05rem;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: all var(--transition-normal);
            border: 1px solid transparent;
        }

        .mobile-nav-overlay a:hover,
        .mobile-nav-overlay a.active {
            color: var(--accent-neon);
            border-color: rgba(0, 229, 255, 0.3);
            background: rgba(0, 229, 255, 0.05);
        }

        .mobile-nav-overlay .nav-cta-mobile {
            margin-top: 12px;
            padding: 14px 18px;
            border: 1px solid var(--accent-neon);
            color: var(--accent-neon);
            border-radius: var(--radius-sm);
            font-size: 1rem;
            font-weight: 600;
            text-align: center;
            background: transparent;
            transition: all var(--transition-normal);
        }

        .mobile-nav-overlay .nav-cta-mobile:hover {
            background: var(--accent-neon);
            color: var(--bg-primary);
        }

        /* Hero */
        .hero-section {
            min-height: 90vh;
            display: flex;
            align-items: center;
            padding-top: 60px;
            position: relative;
            overflow: hidden;
            background: linear-gradient(160deg, #0A0E14 0%, #0d1520 30%, #0a1018 60%, #0A0E14 100%);
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image:
                radial-gradient(circle at 20% 30%, rgba(0, 229, 255, 0.04) 0%, transparent 50%),
                radial-gradient(circle at 75% 60%, rgba(255, 184, 0, 0.03) 0%, transparent 50%),
                radial-gradient(circle at 50% 80%, rgba(0, 229, 255, 0.02) 0%, transparent 40%);
            pointer-events: none;
            z-index: 0;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 1;
            width: 100%;
        }

        .hero-content {
            animation: fadeInUp 0.8s ease forwards;
        }

        .hero-badge {
            display: inline-block;
            padding: 6px 14px;
            border: 1px solid var(--border-card);
            border-radius: 20px;
            font-size: 0.8rem;
            color: var(--accent-neon);
            background: rgba(0, 229, 255, 0.06);
            margin-bottom: 20px;
            letter-spacing: 0.04em;
        }

        .hero-title {
            font-size: 3rem;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            margin-bottom: 18px;
        }

        .hero-title .highlight {
            color: var(--accent-neon);
            position: relative;
        }

        .hero-subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 28px;
            max-width: 480px;
        }

        .hero-cta-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 24px;
        }

        .btn-primary {
            display: inline-block;
            padding: 12px 28px;
            border: 1px solid var(--accent-neon);
            color: var(--accent-neon);
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 600;
            background: transparent;
            transition: all var(--transition-normal);
            cursor: pointer;
            text-align: center;
        }

        .btn-primary:hover {
            background: var(--accent-neon);
            color: var(--bg-primary);
            box-shadow: var(--glow-neon);
            transform: translateY(-1px);
        }

        .btn-primary-fill {
            display: inline-block;
            padding: 12px 28px;
            background: var(--accent-neon);
            color: var(--bg-primary);
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 700;
            border: 1px solid var(--accent-neon);
            transition: all var(--transition-normal);
            cursor: pointer;
            text-align: center;
        }

        .btn-primary-fill:hover {
            box-shadow: var(--glow-neon-strong);
            transform: scale(1.02);
        }

        .btn-secondary {
            display: inline-block;
            padding: 12px 28px;
            background: var(--bg-secondary);
            color: var(--text-secondary);
            border: 1px solid var(--border-input);
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            transition: all var(--transition-normal);
            cursor: pointer;
            text-align: center;
        }

        .btn-secondary:hover {
            border-color: var(--accent-neon);
            color: #fff;
            background: #1a2230;
        }

        .hero-trust {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .hero-trust span {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .hero-trust .trust-dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--accent-neon);
            box-shadow: var(--glow-neon);
        }

        .hero-visual {
            position: relative;
            animation: fadeInUp 1s ease 0.2s forwards;
            opacity: 0;
        }

        .hero-visual img {
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-card);
            box-shadow: 0 0 60px rgba(0, 229, 255, 0.08);
            width: 100%;
            aspect-ratio: 16/11;
            object-fit: cover;
        }

        .hero-visual::after {
            content: '';
            position: absolute;
            inset: -3px;
            border-radius: calc(var(--radius-lg) + 3px);
            border: 1px solid rgba(0, 229, 255, 0.2);
            pointer-events: none;
            z-index: -1;
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* Section base */
        .section {
            padding: 80px 0;
        }

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

        .section-deeper {
            background: #0d1118;
        }

        .section-title {
            font-size: 1.8rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .section-subtitle {
            font-size: 1rem;
            color: var(--text-secondary);
            margin-bottom: 40px;
            max-width: 600px;
            line-height: 1.7;
        }

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

        .pain-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }

        .pain-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            background: rgba(255, 61, 0, 0.1);
            border: 1px solid rgba(255, 61, 0, 0.25);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 1.3rem;
            color: var(--warning);
        }

        .pain-text h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .pain-text p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* Solution */
        .solution-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            margin-bottom: 56px;
        }

        .solution-block.reverse {
            direction: rtl;
        }

        .solution-block.reverse .solution-text {
            direction: ltr;
        }

        .solution-block.reverse .solution-image-wrap {
            direction: ltr;
        }

        .solution-image-wrap {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-card);
        }

        .solution-image-wrap img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .solution-image-wrap:hover img {
            transform: scale(1.03);
        }

        .solution-text h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }

        .solution-text p {
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .solution-text .btn-primary {
            font-size: 0.85rem;
            padding: 9px 20px;
        }

        /* Deep content */
        .deep-content {
            max-width: 900px;
            margin: 0 auto;
        }

        .deep-content h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }

        .deep-content h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--text-primary);
            margin: 28px 0 12px;
        }

        .deep-content p {
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 16px;
            font-size: 0.95rem;
        }

        .deep-content ul,
        .deep-content ol {
            margin: 16px 0;
            padding-left: 24px;
            color: var(--text-secondary);
            line-height: 2;
        }

        .deep-content li {
            margin-bottom: 6px;
            font-size: 0.95rem;
        }

        .deep-content blockquote {
            border-left: 3px solid var(--accent-neon);
            padding: 16px 20px;
            margin: 20px 0;
            background: rgba(0, 229, 255, 0.04);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }

        .deep-content-image {
            margin: 28px 0;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-card);
        }

        .deep-content-image img {
            width: 100%;
            aspect-ratio: 21/9;
            object-fit: cover;
        }

        /* Stats */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }

        .stat-item {
            padding: 32px 20px;
            border: 1px solid var(--border-card);
            border-radius: var(--radius-sm);
            background: var(--bg-secondary);
            transition: all var(--transition-normal);
        }

        .stat-item:hover {
            border-color: var(--accent-neon);
            box-shadow: var(--glow-neon);
        }

        .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--accent-gold);
            font-family: var(--font-mono);
            letter-spacing: -0.02em;
            text-shadow: var(--glow-gold);
            margin-bottom: 8px;
        }

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

        /* News */
        .news-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .news-item {
            display: flex;
            gap: 20px;
            align-items: baseline;
            padding: 16px 0;
            border-bottom: 1px solid var(--border-subtle);
            transition: background var(--transition-normal);
            cursor: pointer;
            border-radius: var(--radius-sm);
            padding-left: 12px;
            padding-right: 12px;
            margin: 0 -12px;
        }

        .news-item:hover {
            background: rgba(0, 229, 255, 0.03);
        }

        .news-item:hover .news-title {
            color: var(--accent-neon);
        }

        .news-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            white-space: nowrap;
            flex-shrink: 0;
            font-family: var(--font-mono);
            min-width: 85px;
        }

        .news-body {
            flex: 1;
        }

        .news-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
            transition: color var(--transition-normal);
        }

        .news-summary {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 6px;
        }

        .news-readmore {
            font-size: 0.8rem;
            color: var(--accent-neon);
            font-weight: 500;
            transition: all var(--transition-normal);
        }

        .news-item:hover .news-readmore {
            text-shadow: var(--glow-neon);
        }

        /* Brand intro */
        .brand-intro {
            max-width: 800px;
            line-height: 1.9;
            color: var(--text-secondary);
            font-size: 0.95rem;
        }

        .brand-intro strong {
            color: var(--text-primary);
        }

        /* Testimonials */
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }

        .testimonial-card {
            padding: 28px;
            border: 1px solid var(--border-card);
            border-radius: var(--radius-sm);
            background: var(--bg-secondary);
            position: relative;
            transition: all var(--transition-normal);
        }

        .testimonial-card:hover {
            border-color: rgba(0, 229, 255, 0.4);
            box-shadow: var(--glow-neon);
        }

        .testimonial-quote {
            font-size: 3rem;
            color: var(--accent-neon);
            opacity: 0.4;
            line-height: 1;
            margin-bottom: 8px;
            font-family: Georgia, serif;
        }

        .testimonial-text {
            color: var(--text-secondary);
            line-height: 1.8;
            font-size: 0.9rem;
            margin-bottom: 16px;
        }

        .testimonial-author {
            font-weight: 600;
            color: var(--text-primary);
            font-size: 0.9rem;
        }

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

        /* CTA section */
        .cta-section {
            position: relative;
            overflow: hidden;
            background: linear-gradient(160deg, #0d1520 0%, #0A0E14 50%, #0d1520 100%);
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(0, 229, 255, 0.08) 0%, transparent 70%);
            pointer-events: none;
            border-radius: 50%;
        }

        .cta-inner {
            text-align: center;
            position: relative;
            z-index: 1;
            max-width: 600px;
            margin: 0 auto;
        }

        .cta-inner h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: -0.02em;
        }

        .cta-inner p {
            color: var(--text-secondary);
            margin-bottom: 28px;
            font-size: 1rem;
        }

        /* Featured categories */
        .cat-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .cat-tag {
            display: inline-block;
            padding: 10px 20px;
            border: 1px solid var(--border-card);
            border-radius: 24px;
            color: var(--text-secondary);
            font-size: 0.9rem;
            transition: all var(--transition-normal);
            cursor: pointer;
            background: var(--bg-secondary);
        }

        .cat-tag:hover {
            border-color: var(--accent-neon);
            color: var(--accent-neon);
            background: rgba(0, 229, 255, 0.06);
            box-shadow: var(--glow-neon);
        }

        .cat-tag.active-tag {
            border-color: var(--accent-neon);
            color: var(--accent-neon);
            background: rgba(0, 229, 255, 0.1);
            font-weight: 600;
        }

        /* Guest highlights */
        .guest-scroll {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            overflow-x: auto;
            padding-bottom: 8px;
            scroll-snap-type: x mandatory;
        }

        .guest-card {
            flex-shrink: 0;
            background: var(--bg-secondary);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-sm);
            padding: 20px;
            transition: all var(--transition-normal);
            scroll-snap-align: start;
            text-align: center;
        }

        .guest-card:hover {
            border-color: var(--accent-neon);
            box-shadow: var(--glow-neon);
        }

        .guest-avatar {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            margin: 0 auto 12px;
            border: 2px solid var(--border-card);
            overflow: hidden;
            background: var(--bg-primary);
        }

        .guest-avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .guest-name {
            font-weight: 600;
            color: var(--text-primary);
            font-size: 0.95rem;
            margin-bottom: 4px;
        }

        .guest-desc {
            font-size: 0.8rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

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

        .collection-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: all var(--transition-normal);
            cursor: pointer;
        }

        .collection-card:hover {
            border-color: var(--accent-neon);
            box-shadow: var(--glow-neon);
            transform: translateY(-2px);
        }

        .collection-card img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
        }

        .collection-info {
            padding: 16px;
        }

        .collection-info h4 {
            font-weight: 600;
            color: var(--text-primary);
            font-size: 0.95rem;
            margin-bottom: 4px;
        }

        .collection-info .count {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .collection-info .collection-cta {
            display: inline-block;
            margin-top: 8px;
            font-size: 0.8rem;
            color: var(--accent-neon);
            font-weight: 500;
            transition: all var(--transition-normal);
        }

        .collection-card:hover .collection-cta {
            text-shadow: var(--glow-neon);
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 8px;
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-sm);
            overflow: hidden;
            background: var(--bg-secondary);
            transition: all var(--transition-normal);
        }

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

        .faq-question {
            padding: 16px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-weight: 600;
            color: var(--text-primary);
            font-size: 0.95rem;
            user-select: none;
            transition: color var(--transition-normal);
        }

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

        .faq-icon {
            font-size: 1.2rem;
            color: var(--accent-neon);
            transition: transform var(--transition-normal);
            flex-shrink: 0;
            margin-left: 12px;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-normal);
            padding: 0 20px;
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.8;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 16px;
        }

        /* Platform guarantee */
        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }

        .guarantee-item {
            padding: 24px 16px;
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-sm);
            background: var(--bg-secondary);
            transition: all var(--transition-normal);
        }

        .guarantee-item:hover {
            border-color: var(--border-card);
            background: #181f2a;
        }

        .guarantee-icon {
            font-size: 2rem;
            margin-bottom: 10px;
            color: var(--accent-neon);
        }

        .guarantee-item h4 {
            font-weight: 600;
            color: var(--text-primary);
            font-size: 0.9rem;
            margin-bottom: 4px;
        }

        .guarantee-item p {
            font-size: 0.8rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-tertiary);
            padding: 48px 0 28px;
            border-top: 1px solid var(--border-subtle);
        }

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

        .footer-brand {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            letter-spacing: -0.02em;
        }

        .footer-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

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

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

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

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

        .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: space-between;
            align-items: center;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

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

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

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

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-visual {
                order: -1;
                max-width: 500px;
                margin: 0 auto;
            }
            .hero-title {
                font-size: 2.2rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .solution-block {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .solution-block.reverse {
                direction: ltr;
            }
            .testimonials-grid {
                grid-template-columns: 1fr;
            }
            .guest-scroll {
                grid-template-columns: repeat(2, 1fr);
            }
            .collection-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .guarantee-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .pain-points-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .nav-cta {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .hero-title {
                font-size: 1.8rem;
            }
            .hero-subtitle {
                font-size: 0.95rem;
            }
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .pain-points-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-number {
                font-size: 2rem;
            }
            .guest-scroll {
                grid-template-columns: 1fr;
            }
            .collection-grid {
                grid-template-columns: 1fr;
            }
            .guarantee-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 10px;
            }
            .footer-links-row {
                justify-content: center;
            }
            .cta-inner h2 {
                font-size: 1.5rem;
            }
            .deep-content h2 {
                font-size: 1.3rem;
            }
            .deep-content h3 {
                font-size: 1.1rem;
            }
            .news-item {
                flex-direction: column;
                gap: 4px;
            }
            .testimonial-card {
                padding: 20px;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.5rem;
            }
            .hero-cta-group {
                flex-direction: column;
            }
            .hero-cta-group .btn-primary,
            .hero-cta-group .btn-primary-fill,
            .hero-cta-group .btn-secondary {
                width: 100%;
                text-align: center;
            }
            .stat-number {
                font-size: 1.6rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .stat-item {
                padding: 20px 12px;
            }
            .guarantee-grid {
                grid-template-columns: 1fr;
            }
            .cat-tags {
                gap: 8px;
            }
            .cat-tag {
                padding: 8px 14px;
                font-size: 0.8rem;
            }
            .container {
                padding: 0 16px;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #0A0E14;
            --bg-secondary: #141A24;
            --bg-tertiary: #060A10;
            --accent-neon: #00E5FF;
            --accent-gold: #FFB800;
            --text-primary: #E8ECF1;
            --text-secondary: #9BA3AF;
            --text-muted: #6B7280;
            --success: #00C853;
            --warning: #FF3D00;
            --border-subtle: rgba(255, 255, 255, 0.05);
            --border-card: rgba(0, 229, 255, 0.15);
            --border-input: #2A303A;
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --transition-fast: 0.2s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.35s ease;
            --glow-neon: 0 0 12px rgba(0, 229, 255, 0.25);
            --glow-neon-strong: 0 0 24px rgba(0, 229, 255, 0.45);
            --glow-gold: 0 0 10px rgba(255, 184, 0, 0.3);
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
            --font-mono: "SF Mono", "Menlo", "Monaco", "Consolas", "Courier New", monospace;
        }

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

        body {
            font-family: var(--font-stack);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.8;
            min-height: 100vh;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

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

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

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

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

        input,
        select,
        textarea {
            font-family: inherit;
            outline: none;
        }

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* Navigation */
        .site-nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: 60px;
            background: rgba(10, 14, 20, 0.95);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-subtle);
            display: flex;
            align-items: center;
            transition: background var(--transition-normal);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-logo .logo-icon {
            width: 32px;
            height: 32px;
            border-radius: var(--radius-sm);
            background: var(--accent-neon);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--bg-primary);
            font-weight: 900;
            font-size: 0.85rem;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            flex-wrap: nowrap;
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            display: block;
            padding: 8px 14px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            position: relative;
            transition: color var(--transition-normal), background var(--transition-normal);
            white-space: nowrap;
        }

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

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

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--accent-neon);
            border-radius: 2px;
            box-shadow: var(--glow-neon);
            transition: all var(--transition-normal);
        }

        .nav-cta {
            padding: 8px 18px;
            border: 1px solid var(--accent-neon);
            color: var(--accent-neon);
            border-radius: var(--radius-sm);
            font-size: 0.85rem;
            font-weight: 600;
            background: transparent;
            transition: all var(--transition-normal);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-cta:hover {
            background: var(--accent-neon);
            color: var(--bg-primary);
            box-shadow: var(--glow-neon);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 4px 8px;
            line-height: 1;
        }

        /* Mobile nav overlay */
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: 60px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(10, 14, 20, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            z-index: 999;
            flex-direction: column;
            padding: 24px;
            overflow-y: auto;
        }

        .mobile-nav-overlay.active {
            display: flex;
        }

        .mobile-nav-overlay a {
            display: block;
            padding: 14px 20px;
            font-size: 1.05rem;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: all var(--transition-normal);
            margin-bottom: 4px;
        }

        .mobile-nav-overlay a:hover,
        .mobile-nav-overlay a.active {
            color: var(--accent-neon);
            background: rgba(0, 229, 255, 0.06);
        }

        .mobile-nav-overlay .nav-cta-mobile {
            margin-top: 16px;
            text-align: center;
            padding: 14px 24px;
            border: 1px solid var(--accent-neon);
            color: var(--accent-neon);
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition-normal);
        }

        .mobile-nav-overlay .nav-cta-mobile:hover {
            background: var(--accent-neon);
            color: var(--bg-primary);
            box-shadow: var(--glow-neon);
        }

        /* Hero */
        .hero-section {
            padding-top: 100px;
            padding-bottom: 60px;
            min-height: 60vh;
            display: flex;
            align-items: center;
            position: relative;
            background: linear-gradient(180deg, rgba(0, 229, 255, 0.04) 0%, rgba(10, 14, 20, 0) 60%);
        }

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

        .hero-title {
            font-size: 3rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.25;
            color: var(--text-primary);
            margin-bottom: 20px;
        }

        .hero-title .highlight {
            color: var(--accent-neon);
            text-shadow: var(--glow-neon);
        }

        .hero-subtitle {
            font-size: 1.15rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 520px;
        }

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

        .btn-primary {
            display: inline-flex;
            align-items: center;
            padding: 12px 28px;
            border: 1px solid var(--accent-neon);
            color: var(--accent-neon);
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 600;
            background: transparent;
            transition: all var(--transition-normal);
            cursor: pointer;
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: var(--accent-neon);
            color: var(--bg-primary);
            box-shadow: var(--glow-neon);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            padding: 12px 28px;
            background: var(--bg-secondary);
            color: var(--text-secondary);
            border: 1px solid var(--border-input);
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            transition: all var(--transition-normal);
            cursor: pointer;
            white-space: nowrap;
        }

        .btn-secondary:hover {
            border-color: var(--accent-neon);
            color: var(--text-primary);
        }

        .btn-cta {
            display: inline-flex;
            align-items: center;
            padding: 14px 32px;
            background: var(--accent-neon);
            color: var(--bg-primary);
            border-radius: var(--radius-sm);
            font-size: 1rem;
            font-weight: 700;
            transition: all var(--transition-normal);
            cursor: pointer;
            white-space: nowrap;
        }

        .btn-cta:hover {
            box-shadow: var(--glow-neon-strong);
            transform: scale(1.02);
        }

        .hero-image-wrap {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-card);
            background: var(--bg-secondary);
        }

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

        .hero-image-wrap::after {
            content: '';
            position: absolute;
            inset: 0;
            border-radius: var(--radius-lg);
            box-shadow: inset 0 0 40px rgba(0, 229, 255, 0.08);
            pointer-events: none;
        }

        /* Section */
        .section {
            padding: 60px 0;
        }

        .section-sm {
            padding: 40px 0;
        }

        .section-title {
            font-size: 1.75rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .section-subtitle {
            font-size: 1rem;
            color: var(--text-secondary);
            margin-bottom: 40px;
            line-height: 1.6;
        }

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

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

        /* Chart showcase */
        .chart-showcase {
            background: var(--bg-secondary);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-card);
            padding: 32px;
            position: relative;
            overflow: hidden;
        }

        .chart-showcase img {
            width: 100%;
            border-radius: var(--radius-md);
        }

        .chart-showcase .chart-label {
            position: absolute;
            top: 16px;
            left: 16px;
            background: var(--bg-primary);
            border: 1px solid var(--border-card);
            color: var(--accent-neon);
            padding: 6px 14px;
            border-radius: var(--radius-sm);
            font-size: 0.8rem;
            font-weight: 600;
            z-index: 2;
        }

        /* Filter toolbar */
        .filter-toolbar {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            padding: 20px 24px;
            background: var(--bg-secondary);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-subtle);
            margin-bottom: 32px;
        }

        .filter-toolbar .filter-label {
            font-size: 0.85rem;
            color: var(--text-secondary);
            font-weight: 600;
            white-space: nowrap;
            margin-right: 4px;
        }

        .filter-toolbar select,
        .filter-toolbar input {
            padding: 10px 16px;
            background: var(--bg-primary);
            border: 1px solid var(--border-input);
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            font-size: 0.9rem;
            min-width: 140px;
            transition: border-color var(--transition-normal);
            -webkit-appearance: none;
            appearance: none;
        }

        .filter-toolbar select {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%239BA3AF' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 12px center;
            padding-right: 36px;
            cursor: pointer;
        }

        .filter-toolbar select:focus,
        .filter-toolbar input:focus {
            border-color: var(--accent-neon);
        }

        .filter-toolbar .btn-filter {
            padding: 10px 20px;
            background: var(--accent-neon);
            color: var(--bg-primary);
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition-normal);
            cursor: pointer;
            white-space: nowrap;
        }

        .filter-toolbar .btn-filter:hover {
            box-shadow: var(--glow-neon);
        }

        .filter-toolbar .btn-reset {
            padding: 10px 20px;
            background: transparent;
            color: var(--text-secondary);
            border: 1px solid var(--border-input);
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.9rem;
            transition: all var(--transition-normal);
            cursor: pointer;
            white-space: nowrap;
        }

        .filter-toolbar .btn-reset:hover {
            border-color: var(--accent-neon);
            color: var(--text-primary);
        }

        /* Timeline list */
        .timeline-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .timeline-item {
            display: grid;
            grid-template-columns: 100px 1fr 140px;
            gap: 20px;
            align-items: center;
            padding: 18px 20px;
            border-bottom: 1px solid var(--border-subtle);
            transition: background var(--transition-normal);
            cursor: pointer;
            border-radius: var(--radius-sm);
        }

        .timeline-item:hover {
            background: rgba(0, 229, 255, 0.03);
        }

        .timeline-item .timeline-date {
            font-family: var(--font-mono);
            font-size: 0.85rem;
            color: var(--text-muted);
            white-space: nowrap;
        }

        .timeline-item .timeline-info h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 4px;
        }

        .timeline-item .timeline-info p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.5;
        }

        .timeline-item .timeline-action {
            text-align: right;
        }

        .timeline-item .timeline-action .btn-sm {
            padding: 8px 16px;
            border: 1px solid var(--accent-neon);
            color: var(--accent-neon);
            border-radius: var(--radius-sm);
            font-size: 0.8rem;
            font-weight: 600;
            background: transparent;
            transition: all var(--transition-normal);
            cursor: pointer;
            white-space: nowrap;
        }

        .timeline-item .timeline-action .btn-sm:hover {
            background: var(--accent-neon);
            color: var(--bg-primary);
            box-shadow: var(--glow-neon);
        }

        .timeline-item .tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: var(--radius-sm);
            font-size: 0.75rem;
            font-weight: 600;
            margin-right: 6px;
        }

        .tag-up {
            background: rgba(0, 200, 83, 0.15);
            color: var(--success);
        }

        .tag-down {
            background: rgba(255, 61, 0, 0.15);
            color: var(--warning);
        }

        .tag-stable {
            background: rgba(255, 184, 0, 0.15);
            color: var(--accent-gold);
        }

        /* Stats panel */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .stat-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            text-align: center;
            transition: all var(--transition-normal);
        }

        .stat-card:hover {
            border-color: var(--accent-neon);
            box-shadow: 0 0 20px rgba(0, 229, 255, 0.08);
        }

        .stat-card .stat-number {
            font-family: var(--font-mono);
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--accent-gold);
            letter-spacing: -0.03em;
            margin-bottom: 8px;
            text-shadow: var(--glow-gold);
        }

        .stat-card .stat-label {
            font-size: 0.85rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* Content block */
        .content-block {
            background: var(--bg-secondary);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-subtle);
            padding: 40px;
            line-height: 1.9;
        }

        .content-block h3 {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-top: 32px;
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .content-block h3:first-child {
            margin-top: 0;
        }

        .content-block p {
            color: var(--text-secondary);
            margin-bottom: 16px;
            font-size: 0.95rem;
        }

        .content-block ul,
        .content-block ol {
            margin: 16px 0;
            padding-left: 24px;
            color: var(--text-secondary);
        }

        .content-block ul {
            list-style: disc;
        }

        .content-block ol {
            list-style: decimal;
        }

        .content-block li {
            margin-bottom: 8px;
            font-size: 0.95rem;
            line-height: 1.7;
        }

        .content-block .highlight-box {
            background: rgba(0, 229, 255, 0.04);
            border-left: 3px solid var(--accent-neon);
            padding: 16px 20px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 20px 0;
            font-size: 0.9rem;
            color: var(--text-primary);
        }

        /* Steps */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            counter-reset: step-counter;
        }

        .step-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            position: relative;
            transition: all var(--transition-normal);
            counter-increment: step-counter;
        }

        .step-card::before {
            content: counter(step-counter);
            position: absolute;
            top: -16px;
            left: 24px;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--accent-neon);
            color: var(--bg-primary);
            font-weight: 800;
            font-size: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-mono);
            box-shadow: var(--glow-neon);
        }

        .step-card:hover {
            border-color: var(--accent-neon);
            box-shadow: 0 0 20px rgba(0, 229, 255, 0.08);
        }

        .step-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 8px 0 8px;
            letter-spacing: -0.01em;
        }

        .step-card p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

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

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-primary);
            transition: color var(--transition-normal);
            user-select: none;
            gap: 12px;
        }

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

        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid var(--border-input);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            transition: all var(--transition-normal);
            color: var(--text-secondary);
            font-weight: 700;
            line-height: 1;
        }

        .faq-item.active .faq-icon {
            border-color: var(--accent-neon);
            color: var(--accent-neon);
            box-shadow: var(--glow-neon);
            transform: rotate(45deg);
        }

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

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

        .faq-answer-inner {
            padding: 0 24px 20px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, rgba(0, 229, 255, 0.06) 0%, rgba(10, 14, 20, 0.95) 50%, rgba(255, 184, 0, 0.04) 100%);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            padding: 60px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle at center, rgba(0, 229, 255, 0.04) 0%, transparent 60%);
            pointer-events: none;
        }

        .cta-section .cta-title {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }

        .cta-section .cta-subtitle {
            font-size: 1rem;
            color: var(--text-secondary);
            margin-bottom: 32px;
            position: relative;
            z-index: 1;
        }

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

        /* Footer */
        .site-footer {
            background: var(--bg-tertiary);
            border-top: 1px solid var(--border-subtle);
            padding: 48px 0 32px;
            margin-top: 60px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }

        .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.02em;
            margin-bottom: 12px;
        }

        .footer-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

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

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

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

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

        .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .footer-links-row {
            display: flex;
            gap: 12px;
            align-items: center;
            flex-wrap: wrap;
        }

        .footer-links-row a {
            color: var(--text-muted);
            transition: color var(--transition-normal);
        }

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

        .footer-links-row span {
            color: var(--text-muted);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-title {
                font-size: 2.2rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .timeline-item {
                grid-template-columns: 80px 1fr 100px;
                gap: 12px;
                padding: 14px 16px;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .nav-cta {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .hero-title {
                font-size: 1.75rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .hero-section {
                padding-top: 80px;
                padding-bottom: 40px;
                min-height: auto;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stat-card {
                padding: 20px 16px;
            }
            .stat-card .stat-number {
                font-size: 1.8rem;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .filter-toolbar {
                flex-direction: column;
                align-items: stretch;
                gap: 8px;
            }
            .filter-toolbar select,
            .filter-toolbar input {
                width: 100%;
                min-width: auto;
            }
            .timeline-item {
                grid-template-columns: 1fr;
                gap: 8px;
                padding: 14px;
            }
            .timeline-item .timeline-action {
                text-align: left;
            }
            .content-block {
                padding: 24px;
            }
            .cta-section {
                padding: 40px 24px;
            }
            .cta-section .cta-title {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .section {
                padding: 40px 0;
            }
            .section-title {
                font-size: 1.4rem;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.5rem;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .hero-cta-group {
                flex-direction: column;
            }
            .hero-cta-group .btn-primary,
            .hero-cta-group .btn-secondary {
                width: 100%;
                text-align: center;
                justify-content: center;
            }
            .container {
                padding: 0 16px;
            }
            .chart-showcase {
                padding: 16px;
            }
        }

/* roulang page: category3 */
:root {
            --bg-primary: #0A0E14;
            --bg-secondary: #141A24;
            --bg-tertiary: #060A10;
            --accent-neon: #00E5FF;
            --accent-gold: #FFB800;
            --text-primary: #E8ECF1;
            --text-secondary: #9BA3AF;
            --text-muted: #6B7280;
            --success: #00C853;
            --warning: #FF3D00;
            --border-subtle: rgba(255, 255, 255, 0.05);
            --border-card: rgba(0, 229, 255, 0.15);
            --border-input: #2A303A;
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --transition-fast: 0.2s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.35s ease;
            --glow-neon: 0 0 12px rgba(0, 229, 255, 0.25);
            --glow-neon-strong: 0 0 24px rgba(0, 229, 255, 0.45);
            --glow-gold: 0 0 10px rgba(255, 184, 0, 0.3);
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
            --font-mono: "SF Mono", "Menlo", "Monaco", "Consolas", "Courier New", monospace;
        }

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

        body {
            font-family: var(--font-stack);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.8;
            min-height: 100vh;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

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

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

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

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

        input,
        select,
        textarea {
            font-family: inherit;
            outline: none;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* Navigation */
        .site-nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: 60px;
            background: rgba(10, 14, 20, 0.95);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-subtle);
            display: flex;
            align-items: center;
            transition: background var(--transition-normal);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-logo .logo-icon {
            width: 32px;
            height: 32px;
            border-radius: var(--radius-sm);
            background: var(--accent-neon);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--bg-primary);
            font-weight: 900;
            font-size: 0.85rem;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            flex-wrap: nowrap;
            margin: 0;
            padding: 0;
        }

        .nav-links li {
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            display: block;
            padding: 8px 14px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            position: relative;
            transition: color var(--transition-normal), background var(--transition-normal);
            white-space: nowrap;
        }

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

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

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--accent-neon);
            border-radius: 2px;
            box-shadow: var(--glow-neon);
            transition: all var(--transition-normal);
        }

        .nav-cta {
            padding: 8px 18px;
            border: 1px solid var(--accent-neon);
            color: var(--accent-neon);
            border-radius: var(--radius-sm);
            font-size: 0.85rem;
            font-weight: 600;
            background: transparent;
            transition: all var(--transition-normal);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-cta:hover {
            background: var(--accent-neon);
            color: var(--bg-primary);
            box-shadow: var(--glow-neon);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 4px 8px;
            line-height: 1;
        }

        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: 60px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(10, 14, 20, 0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            z-index: 999;
            flex-direction: column;
            padding: 20px 24px;
            gap: 4px;
            overflow-y: auto;
        }

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

        .mobile-nav-overlay a {
            display: block;
            padding: 14px 18px;
            font-size: 1.05rem;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            border-bottom: 1px solid var(--border-subtle);
            transition: all var(--transition-normal);
        }

        .mobile-nav-overlay a:hover,
        .mobile-nav-overlay a.active {
            color: var(--accent-neon);
            background: rgba(0, 229, 255, 0.05);
        }

        .mobile-nav-overlay .nav-cta-mobile {
            margin-top: 12px;
            padding: 14px 18px;
            border: 1px solid var(--accent-neon);
            color: var(--accent-neon);
            border-radius: var(--radius-sm);
            font-size: 1rem;
            font-weight: 600;
            text-align: center;
            background: transparent;
            transition: all var(--transition-normal);
        }

        .mobile-nav-overlay .nav-cta-mobile:hover {
            background: var(--accent-neon);
            color: var(--bg-primary);
            box-shadow: var(--glow-neon);
        }

        /* Hero */
        .page-hero {
            min-height: 55vh;
            display: flex;
            align-items: center;
            position: relative;
            padding: 100px 0 60px;
            background: linear-gradient(160deg, #0A0E14 0%, #101826 30%, #0a1018 60%, #0A0E14 100%);
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            pointer-events: none;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 120px;
            background: linear-gradient(to top, #0A0E14, transparent);
            pointer-events: none;
        }

        .page-hero .hero-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
        }

        .page-hero .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            border: 1px solid var(--accent-neon);
            border-radius: 20px;
            color: var(--accent-neon);
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 20px;
            background: rgba(0, 229, 255, 0.06);
        }

        .page-hero h1 {
            font-size: 3rem;
            font-weight: 800;
            letter-spacing: -0.03em;
            color: var(--text-primary);
            line-height: 1.2;
            margin: 0 0 18px;
        }

        .page-hero h1 .highlight {
            color: var(--accent-neon);
            text-shadow: 0 0 20px rgba(0, 229, 255, 0.35);
        }

        .page-hero .hero-subtitle {
            font-size: 1.15rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 30px;
            max-width: 600px;
        }

        .page-hero .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-block;
            padding: 12px 28px;
            border: 1px solid var(--accent-neon);
            color: var(--accent-neon);
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 600;
            background: transparent;
            transition: all var(--transition-normal);
            cursor: pointer;
            text-align: center;
        }

        .btn-primary:hover {
            background: var(--accent-neon);
            color: var(--bg-primary);
            box-shadow: var(--glow-neon);
        }

        .btn-secondary {
            display: inline-block;
            padding: 12px 28px;
            background: var(--bg-secondary);
            color: var(--text-secondary);
            border: 1px solid var(--border-input);
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 600;
            transition: all var(--transition-normal);
            cursor: pointer;
            text-align: center;
        }

        .btn-secondary:hover {
            border-color: var(--accent-neon);
            color: var(--text-primary);
        }

        .btn-cta-glow {
            display: inline-block;
            padding: 14px 32px;
            background: var(--accent-neon);
            color: var(--bg-primary);
            border-radius: var(--radius-sm);
            font-size: 1rem;
            font-weight: 700;
            transition: all var(--transition-normal);
            cursor: pointer;
            text-align: center;
            border: none;
        }

        .btn-cta-glow:hover {
            box-shadow: var(--glow-neon-strong);
            transform: scale(1.03);
        }

        /* Section */
        .section {
            padding: 70px 0;
            position: relative;
        }

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

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            margin-bottom: 10px;
            position: relative;
        }

        .section-title .accent-dot {
            color: var(--accent-neon);
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            margin-bottom: 40px;
            max-width: 600px;
        }

        /* 图文错位卡片 */
        .strategy-card-row {
            display: flex;
            align-items: stretch;
            gap: 0;
            margin-bottom: 36px;
            background: var(--bg-secondary);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-card);
            overflow: hidden;
            transition: all var(--transition-normal);
            min-height: 260px;
        }

        .strategy-card-row:hover {
            border-color: var(--accent-neon);
            box-shadow: 0 0 20px rgba(0, 229, 255, 0.12);
        }

        .strategy-card-row.reversed {
            flex-direction: row-reverse;
        }

        .strategy-card-img {
            flex: 0 0 42%;
            position: relative;
            overflow: hidden;
            min-height: 260px;
            background: #0d1117;
        }

        .strategy-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.45s ease;
        }

        .strategy-card-row:hover .strategy-card-img img {
            transform: scale(1.08);
        }

        .strategy-card-img .img-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(0, 229, 255, 0.08) 0%, transparent 60%);
            pointer-events: none;
        }

        .strategy-card-body {
            flex: 1;
            padding: 32px 36px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .strategy-card-body .card-tag {
            display: inline-block;
            padding: 4px 12px;
            background: rgba(0, 229, 255, 0.08);
            color: var(--accent-neon);
            font-size: 0.75rem;
            font-weight: 600;
            border-radius: 20px;
            letter-spacing: 0.03em;
            margin-bottom: 12px;
            width: fit-content;
            border: 1px solid rgba(0, 229, 255, 0.2);
        }

        .strategy-card-body h3 {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 10px;
            letter-spacing: -0.01em;
        }

        .strategy-card-body p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0 0 16px;
        }

        .strategy-card-body .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--accent-neon);
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition-normal);
            width: fit-content;
        }

        .strategy-card-body .card-link:hover {
            gap: 10px;
            text-shadow: 0 0 8px rgba(0, 229, 255, 0.3);
        }

        .strategy-card-body .card-link .arrow {
            transition: transform var(--transition-fast);
        }

        .strategy-card-body .card-link:hover .arrow {
            transform: translateX(4px);
        }

        /* FAQ 手风琴 */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .faq-item {
            background: var(--bg-secondary);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: all var(--transition-normal);
        }

        .faq-item.open {
            border-color: rgba(0, 229, 255, 0.35);
            box-shadow: 0 0 14px rgba(0, 229, 255, 0.08);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            background: transparent;
            color: var(--text-primary);
            font-size: 1rem;
            font-weight: 600;
            text-align: left;
            cursor: pointer;
            transition: all var(--transition-normal);
            border: none;
            font-family: var(--font-stack);
            gap: 16px;
        }

        .faq-question:hover {
            color: var(--accent-neon);
            background: rgba(0, 229, 255, 0.03);
        }

        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid var(--border-card);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: var(--accent-neon);
            transition: all var(--transition-normal);
            font-weight: 700;
            background: rgba(0, 229, 255, 0.05);
        }

        .faq-item.open .faq-icon {
            background: var(--accent-neon);
            color: var(--bg-primary);
            border-color: var(--accent-neon);
            box-shadow: var(--glow-neon);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
        }

        .faq-answer-inner {
            padding: 0 22px 20px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.75;
        }

        /* 数据亮点卡片 */
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-sm);
            padding: 28px 24px;
            text-align: center;
            transition: all var(--transition-normal);
        }

        .stat-card:hover {
            border-color: var(--accent-neon);
            box-shadow: 0 0 16px rgba(0, 229, 255, 0.1);
        }

        .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--accent-gold);
            font-family: var(--font-mono);
            letter-spacing: -0.02em;
            line-height: 1;
            margin-bottom: 8px;
            text-shadow: var(--glow-gold);
        }

        .stat-label {
            font-size: 0.85rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* 深度内容区 */
        .deep-content {
            background: var(--bg-primary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 48px 40px;
            line-height: 1.9;
        }

        .deep-content h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 32px 0 14px;
            letter-spacing: -0.02em;
            border-left: 3px solid var(--accent-neon);
            padding-left: 16px;
        }

        .deep-content h2:first-child {
            margin-top: 0;
        }

        .deep-content h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--text-primary);
            margin: 20px 0 10px;
        }

        .deep-content p {
            color: var(--text-secondary);
            margin-bottom: 16px;
            text-align: justify;
        }

        .deep-content ul,
        .deep-content ol {
            color: var(--text-secondary);
            padding-left: 24px;
            margin-bottom: 16px;
        }

        .deep-content li {
            margin-bottom: 8px;
        }

        .deep-content blockquote {
            border-left: 3px solid var(--accent-gold);
            padding: 14px 20px;
            margin: 20px 0;
            background: rgba(255, 184, 0, 0.04);
            color: var(--text-secondary);
            font-style: italic;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
        }

        .deep-content .highlight-box {
            background: rgba(0, 229, 255, 0.04);
            border: 1px solid rgba(0, 229, 255, 0.2);
            border-radius: var(--radius-sm);
            padding: 20px 24px;
            margin: 20px 0;
            color: var(--text-primary);
            font-weight: 500;
        }

        /* 策略对比表 */
        .compare-table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-card);
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.9rem;
        }

        .compare-table thead th {
            background: var(--bg-secondary);
            color: var(--accent-neon);
            padding: 16px 18px;
            text-align: left;
            font-weight: 700;
            border-bottom: 2px solid var(--border-card);
            white-space: nowrap;
            font-size: 0.85rem;
            letter-spacing: 0.02em;
        }

        .compare-table tbody td {
            padding: 14px 18px;
            color: var(--text-secondary);
            border-bottom: 1px solid var(--border-subtle);
            vertical-align: top;
        }

        .compare-table tbody tr:hover td {
            background: rgba(0, 229, 255, 0.03);
            color: var(--text-primary);
        }

        .compare-table .tag-rec {
            display: inline-block;
            padding: 3px 10px;
            background: rgba(0, 200, 83, 0.1);
            color: var(--success);
            font-size: 0.75rem;
            border-radius: 12px;
            font-weight: 600;
            border: 1px solid rgba(0, 200, 83, 0.25);
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(160deg, #0d1520 0%, #101c2a 40%, #0d1520 100%);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            padding: 56px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(0, 229, 255, 0.06);
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: rgba(255, 184, 0, 0.04);
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }

        .cta-section p {
            color: var(--text-secondary);
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
            font-size: 1.05rem;
        }

        .cta-section .btn-cta-glow {
            position: relative;
            z-index: 1;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-tertiary);
            padding: 50px 0 30px;
            border-top: 1px solid var(--border-subtle);
            margin-top: 0;
        }

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

        .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            letter-spacing: -0.02em;
        }

        .footer-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

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

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

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

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

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

        .footer-links-row {
            display: flex;
            gap: 10px;
            align-items: center;
            flex-wrap: wrap;
        }

        .footer-links-row a {
            color: var(--text-muted);
            transition: color var(--transition-normal);
        }

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

        .footer-links-row span {
            color: var(--text-muted);
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .page-hero h1 {
                font-size: 2.2rem;
            }
            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .strategy-card-row,
            .strategy-card-row.reversed {
                flex-direction: column;
            }
            .strategy-card-img {
                flex: 0 0 200px;
                min-height: 200px;
            }
            .strategy-card-body {
                padding: 24px 22px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .deep-content {
                padding: 32px 24px;
            }
            .cta-section {
                padding: 40px 24px;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .compare-table thead th,
            .compare-table tbody td {
                padding: 10px 12px;
                font-size: 0.8rem;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .nav-cta {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .page-hero {
                min-height: 45vh;
                padding: 90px 0 40px;
            }
            .page-hero h1 {
                font-size: 1.8rem;
            }
            .page-hero .hero-subtitle {
                font-size: 1rem;
            }
            .section {
                padding: 44px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-number {
                font-size: 2rem;
            }
            .strategy-card-img {
                flex: 0 0 160px;
                min-height: 160px;
            }
            .strategy-card-body h3 {
                font-size: 1.15rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 22px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .deep-content {
                padding: 22px 16px;
            }
            .deep-content h2 {
                font-size: 1.3rem;
            }
            .cta-section h2 {
                font-size: 1.3rem;
            }
            .compare-table-wrap {
                font-size: 0.78rem;
            }
            .faq-question {
                font-size: 0.9rem;
                padding: 14px 16px;
            }
            .faq-answer-inner {
                padding: 0 16px 16px;
                font-size: 0.85rem;
            }
        }

        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 1.5rem;
            }
            .stat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-card {
                padding: 20px 14px;
            }
            .stat-number {
                font-size: 1.7rem;
            }
            .strategy-card-img {
                flex: 0 0 140px;
                min-height: 140px;
            }
            .strategy-card-body {
                padding: 18px 16px;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .btn-primary,
            .btn-secondary,
            .btn-cta-glow {
                padding: 10px 20px;
                font-size: 0.85rem;
            }
        }

/* roulang page: category2 */
:root {
            --bg-primary: #0A0E14;
            --bg-secondary: #141A24;
            --bg-tertiary: #060A10;
            --accent-neon: #00E5FF;
            --accent-gold: #FFB800;
            --text-primary: #E8ECF1;
            --text-secondary: #9BA3AF;
            --text-muted: #6B7280;
            --success: #00C853;
            --warning: #FF3D00;
            --border-subtle: rgba(255, 255, 255, 0.05);
            --border-card: rgba(0, 229, 255, 0.15);
            --border-input: #2A303A;
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --transition-fast: 0.2s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.35s ease;
            --glow-neon: 0 0 12px rgba(0, 229, 255, 0.25);
            --glow-neon-strong: 0 0 24px rgba(0, 229, 255, 0.45);
            --glow-gold: 0 0 10px rgba(255, 184, 0, 0.3);
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
            --font-mono: "SF Mono", "Menlo", "Monaco", "Consolas", "Courier New", monospace;
        }

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

        body {
            font-family: var(--font-stack);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.8;
            min-height: 100vh;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

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

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

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

        input,
        select,
        textarea {
            font-family: inherit;
            outline: none;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

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

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

        /* Navigation */
        .site-nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: 60px;
            background: rgba(10, 14, 20, 0.95);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-subtle);
            display: flex;
            align-items: center;
            transition: background var(--transition-normal);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-logo .logo-icon {
            width: 32px;
            height: 32px;
            border-radius: var(--radius-sm);
            background: var(--accent-neon);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--bg-primary);
            font-weight: 900;
            font-size: 0.85rem;
            flex-shrink: 0;
        }

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

        .nav-links a {
            display: block;
            padding: 8px 14px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            position: relative;
            transition: color var(--transition-normal), background var(--transition-normal);
            white-space: nowrap;
        }

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

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

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--accent-neon);
            border-radius: 2px;
            box-shadow: var(--glow-neon);
            transition: all var(--transition-normal);
        }

        .nav-cta {
            padding: 8px 18px;
            border: 1px solid var(--accent-neon);
            color: var(--accent-neon);
            border-radius: var(--radius-sm);
            font-size: 0.85rem;
            font-weight: 600;
            background: transparent;
            transition: all var(--transition-normal);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-cta:hover {
            background: var(--accent-neon);
            color: var(--bg-primary);
            box-shadow: var(--glow-neon);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 4px 8px;
            line-height: 1;
        }

        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: 60px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(10, 14, 20, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            z-index: 999;
            flex-direction: column;
            padding: 24px;
            gap: 4px;
            overflow-y: auto;
        }

        .mobile-nav-overlay.active {
            display: flex;
        }

        .mobile-nav-overlay a {
            display: block;
            padding: 14px 18px;
            font-size: 1.05rem;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            border-bottom: 1px solid var(--border-subtle);
            transition: all var(--transition-normal);
        }

        .mobile-nav-overlay a:hover,
        .mobile-nav-overlay a.active {
            color: var(--accent-neon);
            background: rgba(0, 229, 255, 0.05);
        }

        .mobile-nav-overlay .nav-cta-mobile {
            margin-top: 12px;
            text-align: center;
            padding: 12px 20px;
            border: 1px solid var(--accent-neon);
            color: var(--accent-neon);
            border-radius: var(--radius-sm);
            font-weight: 600;
            background: transparent;
            transition: all var(--transition-normal);
        }

        .mobile-nav-overlay .nav-cta-mobile:hover {
            background: var(--accent-neon);
            color: var(--bg-primary);
            box-shadow: var(--glow-neon);
        }

        /* Hero */
        .page-hero {
            padding-top: 100px;
            padding-bottom: 60px;
            position: relative;
            background: linear-gradient(160deg, #0A0E14 0%, #0d1520 40%, #111a28 100%);
            overflow: hidden;
            min-height: 50vh;
            display: flex;
            align-items: center;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -120px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(0, 229, 255, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: -80px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 184, 0, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .page-hero .hero-content {
            position: relative;
            z-index: 2;
            display: flex;
            gap: 40px;
            align-items: center;
            flex-wrap: wrap;
        }

        .page-hero .hero-text {
            flex: 1 1 480px;
            min-width: 0;
        }

        .page-hero .hero-text h1 {
            font-size: 2.8rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            line-height: 1.25;
            margin: 0 0 16px;
        }

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

        .page-hero .hero-text .hero-sub {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0 0 24px;
            max-width: 560px;
        }

        .page-hero .hero-image {
            flex: 0 0 380px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-card);
            position: relative;
        }

        .page-hero .hero-image img {
            width: 100%;
            height: auto;
            border-radius: var(--radius-lg);
        }

        .btn-primary {
            display: inline-block;
            padding: 12px 28px;
            border: 1px solid var(--accent-neon);
            color: var(--accent-neon);
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 600;
            background: transparent;
            transition: all var(--transition-normal);
            cursor: pointer;
            text-align: center;
        }

        .btn-primary:hover {
            background: var(--accent-neon);
            color: var(--bg-primary);
            box-shadow: var(--glow-neon);
        }

        .btn-cta {
            display: inline-block;
            padding: 12px 28px;
            background: var(--accent-neon);
            color: var(--bg-primary);
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 700;
            border: none;
            transition: all var(--transition-normal);
            cursor: pointer;
            text-align: center;
        }

        .btn-cta:hover {
            transform: scale(1.03);
            box-shadow: var(--glow-neon-strong);
        }

        .btn-secondary {
            display: inline-block;
            padding: 10px 22px;
            background: var(--bg-secondary);
            color: var(--text-secondary);
            border: 1px solid var(--border-input);
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 500;
            transition: all var(--transition-normal);
            cursor: pointer;
            text-align: center;
        }

        .btn-secondary:hover {
            border-color: var(--accent-neon);
            color: var(--text-primary);
        }

        /* Section */
        .section {
            padding: 60px 0;
        }

        .section-title {
            font-size: 1.75rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            margin: 0 0 8px;
        }

        .section-subtitle {
            font-size: 1rem;
            color: var(--text-secondary);
            margin: 0 0 32px;
        }

        .section-header {
            margin-bottom: 36px;
        }

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

        .stat-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            text-align: center;
            transition: all var(--transition-normal);
        }

        .stat-card:hover {
            border-color: var(--accent-neon);
            box-shadow: 0 0 16px rgba(0, 229, 255, 0.12);
        }

        .stat-card .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--accent-gold);
            font-family: var(--font-mono);
            letter-spacing: -0.01em;
            margin: 0 0 4px;
            line-height: 1.2;
        }

        .stat-card .stat-label {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin: 0;
        }

        /* Main data area */
        .data-layout {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 28px;
            align-items: start;
        }

        .data-main {
            min-width: 0;
        }

        .data-sidebar {
            position: sticky;
            top: 80px;
            background: var(--bg-secondary);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            padding: 24px;
        }

        .data-sidebar h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 16px;
            letter-spacing: -0.01em;
        }

        .data-sidebar .filter-group {
            margin-bottom: 16px;
        }

        .data-sidebar .filter-group label {
            display: block;
            font-size: 0.8rem;
            color: var(--text-secondary);
            margin-bottom: 6px;
            font-weight: 500;
        }

        .data-sidebar .filter-group input,
        .data-sidebar .filter-group select {
            width: 100%;
            padding: 10px 14px;
            background: var(--bg-primary);
            border: 1px solid var(--border-input);
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            font-size: 0.9rem;
            transition: border-color var(--transition-normal);
        }

        .data-sidebar .filter-group input:focus,
        .data-sidebar .filter-group select:focus {
            border-color: var(--accent-neon);
        }

        .data-sidebar .filter-group input::placeholder {
            color: var(--text-muted);
        }

        /* Lottery row */
        .lottery-row {
            background: var(--bg-secondary);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            margin-bottom: 10px;
            cursor: pointer;
            transition: all var(--transition-normal);
            position: relative;
        }

        .lottery-row:hover {
            border-color: var(--accent-neon);
            box-shadow: 0 0 14px rgba(0, 229, 255, 0.1);
            background: #181f2a;
        }

        .lottery-row .lottery-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 10px;
        }

        .lottery-row .lottery-name {
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--text-primary);
            letter-spacing: -0.01em;
        }

        .lottery-row .lottery-period {
            font-size: 0.8rem;
            color: var(--text-muted);
            font-family: var(--font-mono);
        }

        .lottery-row .lottery-date {
            font-size: 0.8rem;
            color: var(--text-secondary);
        }

        .lottery-row .ball-group {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            align-items: center;
        }

        .ball-red {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: #c0392b;
            color: #fff;
            font-weight: 700;
            font-size: 0.9rem;
            font-family: var(--font-mono);
            box-shadow: 0 2px 6px rgba(192, 57, 43, 0.35);
        }

        .ball-blue {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: #2980b9;
            color: #fff;
            font-weight: 700;
            font-size: 0.9rem;
            font-family: var(--font-mono);
            box-shadow: 0 2px 6px rgba(41, 128, 185, 0.35);
        }

        .ball-separator {
            width: 2px;
            height: 24px;
            background: rgba(255, 255, 255, 0.2);
            border-radius: 1px;
            margin: 0 2px;
        }

        .lottery-row .expand-indicator {
            font-size: 0.75rem;
            color: var(--accent-neon);
            display: flex;
            align-items: center;
            gap: 4px;
            margin-top: 8px;
            transition: all var(--transition-normal);
        }

        .lottery-row .expand-indicator .arrow {
            display: inline-block;
            transition: transform var(--transition-normal);
        }

        .lottery-row.expanded .expand-indicator .arrow {
            transform: rotate(180deg);
        }

        .lottery-detail {
            display: none;
            border-top: 1px solid var(--border-subtle);
            margin-top: 14px;
            padding-top: 14px;
            animation: fadeInDown 0.3s ease;
        }

        .lottery-row.expanded .lottery-detail {
            display: block;
        }

        @keyframes fadeInDown {
            from {
                opacity: 0;
                transform: translateY(-6px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .lottery-detail .detail-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 12px;
        }

        .lottery-detail .detail-item {
            text-align: center;
            padding: 10px;
            background: rgba(0, 0, 0, 0.2);
            border-radius: var(--radius-sm);
        }

        .lottery-detail .detail-item .detail-val {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--accent-gold);
            font-family: var(--font-mono);
        }

        .lottery-detail .detail-item .detail-lbl {
            font-size: 0.7rem;
            color: var(--text-muted);
            margin-top: 2px;
        }

        /* Lottery type tabs */
        .lottery-tabs {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 20px;
        }

        .lottery-tab {
            padding: 8px 16px;
            border: 1px solid var(--border-input);
            border-radius: 20px;
            font-size: 0.85rem;
            color: var(--text-secondary);
            cursor: pointer;
            transition: all var(--transition-normal);
            background: transparent;
            white-space: nowrap;
        }

        .lottery-tab:hover {
            border-color: var(--accent-neon);
            color: var(--accent-neon);
        }

        .lottery-tab.active {
            background: rgba(0, 229, 255, 0.12);
            border-color: var(--accent-neon);
            color: var(--accent-neon);
            font-weight: 600;
        }

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

        .coverage-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            padding: 28px 22px;
            text-align: center;
            transition: all var(--transition-normal);
        }

        .coverage-card:hover {
            border-color: var(--accent-neon);
            box-shadow: 0 0 18px rgba(0, 229, 255, 0.1);
            transform: translateY(-2px);
        }

        .coverage-card .coverage-icon {
            font-size: 2.5rem;
            margin-bottom: 12px;
            display: block;
        }

        .coverage-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 6px;
        }

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

        /* Steps */
        .steps-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            counter-reset: step;
        }

        .step-item {
            background: var(--bg-secondary);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            padding: 28px 22px;
            position: relative;
            transition: all var(--transition-normal);
            counter-increment: step;
        }

        .step-item:hover {
            border-color: var(--accent-neon);
            box-shadow: 0 0 16px rgba(0, 229, 255, 0.08);
        }

        .step-item .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--accent-neon);
            color: var(--bg-primary);
            font-weight: 800;
            font-size: 1.1rem;
            margin-bottom: 14px;
            font-family: var(--font-mono);
        }

        .step-item h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 6px;
        }

        .step-item p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.6;
        }

        /* Deep content */
        .deep-content {
            background: var(--bg-secondary);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            padding: 36px 32px;
            line-height: 1.9;
        }

        .deep-content h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 16px;
            letter-spacing: -0.01em;
        }

        .deep-content h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 20px 0 10px;
        }

        .deep-content p {
            color: var(--text-secondary);
            margin: 0 0 14px;
            font-size: 0.95rem;
        }

        .deep-content ul {
            list-style: disc;
            padding-left: 20px;
            color: var(--text-secondary);
            margin: 0 0 14px;
        }

        .deep-content ul li {
            margin-bottom: 6px;
            font-size: 0.95rem;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

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

        .faq-item:hover {
            border-color: rgba(0, 229, 255, 0.3);
        }

        .faq-item .faq-question {
            width: 100%;
            padding: 16px 20px;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 0.95rem;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            text-align: left;
            gap: 12px;
            transition: all var(--transition-normal);
        }

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

        .faq-item .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            border: 1px solid var(--accent-neon);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            color: var(--accent-neon);
            transition: all var(--transition-normal);
            font-weight: 700;
        }

        .faq-item.open .faq-icon {
            background: var(--accent-neon);
            color: var(--bg-primary);
        }

        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 20px;
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 16px;
        }

        /* CTA section */
        .cta-section {
            background: linear-gradient(160deg, #0d1520 0%, #111a28 50%, #0A0E14 100%);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            padding: 50px 36px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -60px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(0, 229, 255, 0.1) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--text-primary);
            margin: 0 0 10px;
            letter-spacing: -0.02em;
            position: relative;
            z-index: 1;
        }

        .cta-section p {
            color: var(--text-secondary);
            margin: 0 0 24px;
            font-size: 1rem;
            position: relative;
            z-index: 1;
        }

        .cta-section .btn-cta {
            position: relative;
            z-index: 1;
            font-size: 1rem;
            padding: 14px 32px;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-tertiary);
            padding: 48px 0 28px;
            border-top: 1px solid var(--border-subtle);
            margin-top: 40px;
        }

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

        .footer-brand {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }

        .footer-desc {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 12px;
            letter-spacing: -0.01em;
        }

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

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

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

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

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

        .footer-links-row {
            display: flex;
            gap: 10px;
            align-items: center;
            flex-wrap: wrap;
        }

        .footer-links-row a {
            color: var(--text-muted);
            transition: color var(--transition-normal);
        }

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

        .footer-links-row span {
            color: var(--text-muted);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .data-layout {
                grid-template-columns: 1fr;
            }
            .data-sidebar {
                position: static;
                top: auto;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .coverage-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-list {
                grid-template-columns: repeat(2, 1fr);
            }
            .lottery-detail .detail-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .page-hero .hero-image {
                flex: 0 0 280px;
            }
            .page-hero .hero-text h1 {
                font-size: 2.2rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .nav-links {
                display: none;
            }
            .nav-cta {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
        }

        @media (max-width: 640px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .coverage-grid {
                grid-template-columns: 1fr;
            }
            .steps-list {
                grid-template-columns: 1fr;
            }
            .lottery-detail .detail-grid {
                grid-template-columns: 1fr 1fr;
            }
            .page-hero {
                padding-top: 80px;
                padding-bottom: 40px;
                min-height: auto;
            }
            .page-hero .hero-content {
                flex-direction: column;
            }
            .page-hero .hero-image {
                flex: 0 0 auto;
                width: 100%;
                max-width: 320px;
            }
            .page-hero .hero-text h1 {
                font-size: 1.7rem;
            }
            .section {
                padding: 36px 0;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .lottery-row {
                padding: 14px 16px;
            }
            .ball-red,
            .ball-blue {
                width: 30px;
                height: 30px;
                font-size: 0.75rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .cta-section {
                padding: 32px 20px;
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
            .deep-content {
                padding: 20px 16px;
            }
            .data-sidebar {
                padding: 16px;
            }
            .lottery-tabs {
                gap: 4px;
            }
            .lottery-tab {
                padding: 6px 12px;
                font-size: 0.78rem;
            }
        }

        @media (max-width: 480px) {
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .lottery-detail .detail-grid {
                grid-template-columns: 1fr 1fr;
            }
            .page-hero .hero-text h1 {
                font-size: 1.5rem;
            }
            .ball-red,
            .ball-blue {
                width: 28px;
                height: 28px;
                font-size: 0.7rem;
            }
            .lottery-row .lottery-header {
                gap: 4px;
            }
        }

/* roulang page: category4 */
:root {
            --bg-primary: #0A0E14;
            --bg-secondary: #141A24;
            --bg-tertiary: #060A10;
            --accent-neon: #00E5FF;
            --accent-gold: #FFB800;
            --text-primary: #E8ECF1;
            --text-secondary: #9BA3AF;
            --text-muted: #6B7280;
            --success: #00C853;
            --warning: #FF3D00;
            --border-subtle: rgba(255, 255, 255, 0.05);
            --border-card: rgba(0, 229, 255, 0.15);
            --border-input: #2A303A;
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --transition-fast: 0.2s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.35s ease;
            --glow-neon: 0 0 12px rgba(0, 229, 255, 0.25);
            --glow-neon-strong: 0 0 24px rgba(0, 229, 255, 0.45);
            --glow-gold: 0 0 10px rgba(255, 184, 0, 0.3);
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
            --font-mono: "SF Mono", "Menlo", "Monaco", "Consolas", "Courier New", monospace;
        }

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

        body {
            font-family: var(--font-stack);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.8;
            min-height: 100vh;
            overflow-x: hidden;
            padding-top: 60px;
        }

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

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

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

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

        input,
        select,
        textarea {
            font-family: inherit;
            outline: none;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* Navigation */
        .site-nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: 60px;
            background: rgba(10, 14, 20, 0.95);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-subtle);
            display: flex;
            align-items: center;
            transition: background var(--transition-normal);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-logo .logo-icon {
            width: 32px;
            height: 32px;
            border-radius: var(--radius-sm);
            background: var(--accent-neon);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--bg-primary);
            font-weight: 900;
            font-size: 0.85rem;
            flex-shrink: 0;
        }

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

        .nav-links a {
            display: block;
            padding: 8px 14px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            position: relative;
            transition: color var(--transition-normal), background var(--transition-normal);
            white-space: nowrap;
        }

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

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

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--accent-neon);
            border-radius: 2px;
            box-shadow: var(--glow-neon);
            transition: all var(--transition-normal);
        }

        .nav-cta {
            padding: 8px 18px;
            border: 1px solid var(--accent-neon);
            color: var(--accent-neon);
            border-radius: var(--radius-sm);
            font-size: 0.85rem;
            font-weight: 600;
            background: transparent;
            transition: all var(--transition-normal);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-cta:hover {
            background: var(--accent-neon);
            color: var(--bg-primary);
            box-shadow: var(--glow-neon);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 4px 8px;
            line-height: 1;
        }

        /* Mobile nav overlay */
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: 60px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(10, 14, 20, 0.92);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            z-index: 999;
            flex-direction: column;
            padding: 24px;
            gap: 8px;
            overflow-y: auto;
        }

        .mobile-nav-overlay.active {
            display: flex;
        }

        .mobile-nav-overlay a {
            display: block;
            padding: 14px 18px;
            font-size: 1.05rem;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: all var(--transition-normal);
            border: 1px solid transparent;
        }

        .mobile-nav-overlay a:hover,
        .mobile-nav-overlay a.active {
            color: var(--accent-neon);
            border-color: rgba(0, 229, 255, 0.3);
            background: rgba(0, 229, 255, 0.04);
        }

        .mobile-nav-overlay .nav-cta-mobile {
            margin-top: 12px;
            padding: 14px 18px;
            border: 1px solid var(--accent-neon);
            color: var(--accent-neon);
            border-radius: var(--radius-sm);
            font-size: 1rem;
            font-weight: 600;
            text-align: center;
            background: transparent;
            transition: all var(--transition-normal);
        }

        .mobile-nav-overlay .nav-cta-mobile:hover {
            background: var(--accent-neon);
            color: var(--bg-primary);
            box-shadow: var(--glow-neon);
        }

        /* Hero */
        .page-hero {
            position: relative;
            padding: 80px 0 60px;
            background: linear-gradient(180deg, rgba(0, 229, 255, 0.06) 0%, rgba(10, 14, 20, 1) 70%);
            border-bottom: 1px solid var(--border-subtle);
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(0, 229, 255, 0.07) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .page-hero .hero-content {
            position: relative;
            z-index: 1;
            max-width: 800px;
        }

        .page-hero .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            border: 1px solid var(--accent-neon);
            border-radius: 20px;
            color: var(--accent-neon);
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 20px;
            background: rgba(0, 229, 255, 0.06);
        }

        .page-hero h1 {
            font-size: 2.8rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            line-height: 1.25;
            margin-bottom: 16px;
        }

        .page-hero h1 .highlight {
            color: var(--accent-neon);
            text-shadow: var(--glow-neon);
        }

        .page-hero .hero-sub {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 600px;
        }

        /* Section */
        .section {
            padding: 56px 0;
        }

        .section-title {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.01em;
            margin-bottom: 8px;
            position: relative;
            display: inline-block;
        }

        .section-title::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 40px;
            height: 3px;
            background: var(--accent-neon);
            border-radius: 2px;
            box-shadow: var(--glow-neon);
        }

        .section-subtitle {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-bottom: 32px;
        }

        /* Filter bar */
        .filter-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            padding: 16px 0;
            border-bottom: 1px solid var(--border-subtle);
            margin-bottom: 32px;
        }

        .filter-tag {
            padding: 8px 18px;
            border-radius: 20px;
            font-size: 0.85rem;
            color: var(--text-secondary);
            border: 1px solid var(--border-input);
            background: transparent;
            cursor: pointer;
            transition: all var(--transition-normal);
            white-space: nowrap;
        }

        .filter-tag:hover {
            border-color: var(--accent-neon);
            color: var(--accent-neon);
            background: rgba(0, 229, 255, 0.05);
        }

        .filter-tag.active {
            border-color: var(--accent-neon);
            color: var(--accent-neon);
            background: rgba(0, 229, 255, 0.1);
            font-weight: 600;
            box-shadow: var(--glow-neon);
        }

        /* Main layout */
        .news-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
            align-items: start;
        }

        .news-main {
            min-width: 0;
        }

        .news-sidebar {
            position: sticky;
            top: 84px;
        }

        /* News item */
        .news-item {
            display: flex;
            gap: 20px;
            padding: 24px;
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            background: var(--bg-secondary);
            margin-bottom: 18px;
            transition: all var(--transition-normal);
            cursor: pointer;
        }

        .news-item:hover {
            border-color: var(--accent-neon);
            box-shadow: 0 0 18px rgba(0, 229, 255, 0.12);
            background: rgba(20, 26, 36, 0.85);
        }

        .news-item .news-thumb {
            width: 200px;
            height: 140px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            background: var(--bg-primary);
            border: 1px solid var(--border-subtle);
        }

        .news-item .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .news-item:hover .news-thumb img {
            transform: scale(1.04);
        }

        .news-item .news-body {
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            min-width: 0;
        }

        .news-item .news-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            font-family: var(--font-mono);
            letter-spacing: 0.03em;
        }

        .news-item .news-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.4;
            margin: 4px 0 8px;
            transition: color var(--transition-normal);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-item:hover .news-title {
            color: var(--accent-neon);
        }

        .news-item .news-excerpt {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-item .news-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-top: 8px;
        }

        .news-item .news-meta .meta-tag {
            padding: 3px 10px;
            border-radius: 12px;
            border: 1px solid var(--border-input);
            font-size: 0.72rem;
            color: var(--text-secondary);
            background: rgba(255, 255, 255, 0.02);
        }

        .news-item .read-more {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            color: var(--accent-neon);
            font-size: 0.82rem;
            font-weight: 600;
            margin-top: 6px;
            transition: all var(--transition-normal);
        }

        .news-item .read-more:hover {
            gap: 8px;
            text-shadow: var(--glow-neon);
        }

        .news-item .read-more .arrow {
            transition: transform var(--transition-fast);
        }

        .news-item .read-more:hover .arrow {
            transform: translateX(3px);
        }

        /* Pagination */
        .pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 32px 0 16px;
            flex-wrap: wrap;
        }

        .pagination .page-btn {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-input);
            background: var(--bg-secondary);
            color: var(--text-secondary);
            font-size: 0.9rem;
            font-weight: 500;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all var(--transition-normal);
        }

        .pagination .page-btn:hover {
            border-color: var(--accent-neon);
            color: var(--accent-neon);
            background: rgba(0, 229, 255, 0.06);
        }

        .pagination .page-btn.active {
            border-color: var(--accent-neon);
            color: var(--bg-primary);
            background: var(--accent-neon);
            font-weight: 700;
            box-shadow: var(--glow-neon);
            cursor: default;
        }

        .pagination .page-btn.disabled {
            opacity: 0.35;
            cursor: not-allowed;
            pointer-events: none;
        }

        .pagination .page-dots {
            color: var(--text-muted);
            padding: 0 4px;
            font-size: 0.9rem;
        }

        /* Sidebar */
        .sidebar-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            padding: 24px;
            margin-bottom: 20px;
        }

        .sidebar-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border-subtle);
            letter-spacing: -0.01em;
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag-cloud .tag {
            padding: 6px 14px;
            border-radius: 16px;
            font-size: 0.78rem;
            color: var(--text-secondary);
            border: 1px solid var(--border-input);
            background: transparent;
            cursor: pointer;
            transition: all var(--transition-normal);
            white-space: nowrap;
        }

        .tag-cloud .tag:hover {
            border-color: var(--accent-neon);
            color: var(--accent-neon);
            background: rgba(0, 229, 255, 0.06);
            box-shadow: var(--glow-neon);
        }

        .comment-placeholder {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px solid var(--border-subtle);
        }

        .comment-placeholder:last-child {
            border-bottom: none;
        }

        .comment-placeholder .avatar-dot {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--border-input);
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            font-size: 0.75rem;
            font-weight: 600;
        }

        .comment-placeholder .cmt-info {
            flex: 1;
            min-width: 0;
        }

        .comment-placeholder .cmt-name {
            font-size: 0.82rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

        .comment-placeholder .cmt-text {
            font-size: 0.78rem;
            color: var(--text-muted);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        /* CTA Section */
        .cta-section {
            background: var(--bg-secondary);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: 50%;
            transform: translateX(-50%);
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(0, 229, 255, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.01em;
            position: relative;
            z-index: 1;
        }

        .cta-section .cta-sub {
            font-size: 1rem;
            color: var(--text-secondary);
            margin: 12px 0 24px;
            position: relative;
            z-index: 1;
        }

        .btn-primary {
            display: inline-block;
            padding: 12px 28px;
            border: 1px solid var(--accent-neon);
            color: var(--accent-neon);
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 600;
            background: transparent;
            cursor: pointer;
            transition: all var(--transition-normal);
            position: relative;
            z-index: 1;
            letter-spacing: 0.02em;
        }

        .btn-primary:hover {
            background: var(--accent-neon);
            color: var(--bg-primary);
            box-shadow: var(--glow-neon-strong);
            transform: translateY(-1px);
        }

        .btn-primary-fill {
            display: inline-block;
            padding: 12px 28px;
            background: var(--accent-neon);
            color: var(--bg-primary);
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 700;
            cursor: pointer;
            transition: all var(--transition-normal);
            position: relative;
            z-index: 1;
            letter-spacing: 0.02em;
            border: 2px solid var(--accent-neon);
        }

        .btn-primary-fill:hover {
            box-shadow: var(--glow-neon-strong);
            transform: scale(1.03);
        }

        /* Stats row */
        .stats-mini-row {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            justify-content: center;
            padding: 20px 0;
        }

        .stat-mini {
            text-align: center;
            padding: 16px 24px;
            border-radius: var(--radius-md);
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            min-width: 120px;
            transition: all var(--transition-normal);
        }

        .stat-mini:hover {
            border-color: var(--accent-neon);
            box-shadow: var(--glow-neon);
        }

        .stat-mini .stat-num {
            font-size: 2rem;
            font-weight: 700;
            color: var(--accent-gold);
            font-family: var(--font-mono);
            letter-spacing: -0.01em;
            text-shadow: var(--glow-gold);
        }

        .stat-mini .stat-label {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-tertiary);
            border-top: 1px solid var(--border-subtle);
            padding: 48px 0 24px;
            margin-top: 40px;
        }

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

        .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            letter-spacing: -0.02em;
        }

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

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }

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

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

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

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

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

        .footer-links-row {
            display: flex;
            gap: 12px;
            align-items: center;
            flex-wrap: wrap;
        }

        .footer-links-row a {
            color: var(--text-muted);
            transition: color var(--transition-normal);
        }

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

        /* Responsive */
        @media (max-width: 1024px) {
            .news-layout {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .news-sidebar {
                position: static;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .news-sidebar .sidebar-card {
                margin-bottom: 0;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .page-hero h1 {
                font-size: 2.2rem;
            }
            .news-item {
                flex-direction: column;
                gap: 14px;
            }
            .news-item .news-thumb {
                width: 100%;
                height: 180px;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .nav-cta {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .news-sidebar {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .page-hero {
                padding: 50px 0 36px;
            }
            .page-hero h1 {
                font-size: 1.7rem;
            }
            .section {
                padding: 36px 0;
            }
            .news-item .news-thumb {
                height: 160px;
            }
            .cta-section {
                padding: 32px 20px;
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
            .stats-mini-row {
                gap: 12px;
            }
            .stat-mini {
                min-width: 80px;
                padding: 12px 16px;
            }
            .stat-mini .stat-num {
                font-size: 1.5rem;
            }
            .pagination .page-btn {
                width: 34px;
                height: 34px;
                font-size: 0.8rem;
            }
            .filter-bar {
                gap: 6px;
            }
            .filter-tag {
                padding: 6px 12px;
                font-size: 0.78rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .page-hero h1 {
                font-size: 1.4rem;
            }
            .page-hero .hero-sub {
                font-size: 0.9rem;
            }
            .news-item {
                padding: 16px;
            }
            .news-item .news-title {
                font-size: 1rem;
            }
            .news-item .news-excerpt {
                font-size: 0.82rem;
            }
            .news-item .news-thumb {
                height: 130px;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

/* roulang page: category6 */
:root {
            --bg-primary: #0A0E14;
            --bg-secondary: #141A24;
            --bg-tertiary: #060A10;
            --accent-neon: #00E5FF;
            --accent-gold: #FFB800;
            --text-primary: #E8ECF1;
            --text-secondary: #9BA3AF;
            --text-muted: #6B7280;
            --success: #00C853;
            --warning: #FF3D00;
            --border-subtle: rgba(255, 255, 255, 0.05);
            --border-card: rgba(0, 229, 255, 0.15);
            --border-input: #2A303A;
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --transition-fast: 0.2s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.35s ease;
            --glow-neon: 0 0 12px rgba(0, 229, 255, 0.25);
            --glow-neon-strong: 0 0 24px rgba(0, 229, 255, 0.45);
            --glow-gold: 0 0 10px rgba(255, 184, 0, 0.3);
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
            --font-mono: "SF Mono", "Menlo", "Monaco", "Consolas", "Courier New", monospace;
        }

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

        body {
            font-family: var(--font-stack);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.8;
            min-height: 100vh;
            overflow-x: hidden;
            padding-top: 60px;
        }

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

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

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

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

        input,
        select,
        textarea {
            font-family: inherit;
            outline: none;
        }

        ul {
            list-style: none;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* Navigation */
        .site-nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: 60px;
            background: rgba(10, 14, 20, 0.95);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-subtle);
            display: flex;
            align-items: center;
            transition: background var(--transition-normal);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-logo .logo-icon {
            width: 32px;
            height: 32px;
            border-radius: var(--radius-sm);
            background: var(--accent-neon);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--bg-primary);
            font-weight: 900;
            font-size: 0.85rem;
            flex-shrink: 0;
        }

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

        .nav-links a {
            display: block;
            padding: 8px 14px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            position: relative;
            transition: color var(--transition-normal), background var(--transition-normal);
            white-space: nowrap;
        }

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

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

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--accent-neon);
            border-radius: 2px;
            box-shadow: var(--glow-neon);
            transition: all var(--transition-normal);
        }

        .nav-cta {
            padding: 8px 18px;
            border: 1px solid var(--accent-neon);
            color: var(--accent-neon);
            border-radius: var(--radius-sm);
            font-size: 0.85rem;
            font-weight: 600;
            background: transparent;
            transition: all var(--transition-normal);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-cta:hover {
            background: var(--accent-neon);
            color: var(--bg-primary);
            box-shadow: var(--glow-neon);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 4px 8px;
            line-height: 1;
        }

        /* Mobile nav overlay */
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: 60px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(10, 14, 20, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            z-index: 999;
            flex-direction: column;
            padding: 20px;
            overflow-y: auto;
        }

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

        .mobile-nav-overlay a {
            display: block;
            padding: 14px 20px;
            font-size: 1.1rem;
            color: var(--text-secondary);
            border-radius: var(--radius-md);
            transition: all var(--transition-normal);
            border-bottom: 1px solid var(--border-subtle);
        }

        .mobile-nav-overlay a:hover,
        .mobile-nav-overlay a.active {
            color: var(--accent-neon);
            background: rgba(0, 229, 255, 0.06);
        }

        /* Hero */
        .hero-section {
            position: relative;
            min-height: 70vh;
            display: flex;
            align-items: center;
            background: linear-gradient(160deg, var(--bg-primary) 30%, #0d1525 60%, #0f1a2e 100%);
            overflow: hidden;
            padding: 60px 0;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background:
                radial-gradient(ellipse at 25% 30%, rgba(0, 229, 255, 0.06) 0%, transparent 55%),
                radial-gradient(ellipse at 70% 60%, rgba(255, 184, 0, 0.04) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 80%, rgba(0, 229, 255, 0.03) 0%, transparent 60%);
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 2;
        }

        .hero-content {
            animation: fadeInUp 0.8s ease forwards;
        }

        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            border: 1px solid var(--accent-neon);
            border-radius: 20px;
            font-size: 0.8rem;
            color: var(--accent-neon);
            letter-spacing: 0.04em;
            margin-bottom: 20px;
            background: rgba(0, 229, 255, 0.05);
        }

        .hero-content h1 {
            font-size: 3rem;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.03em;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .hero-content h1 .highlight {
            color: var(--accent-neon);
            position: relative;
        }

        .hero-content .hero-subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 28px;
            max-width: 480px;
        }

        .hero-buttons {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-primary {
            padding: 12px 28px;
            border: 1px solid var(--accent-neon);
            color: var(--accent-neon);
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 600;
            background: transparent;
            transition: all var(--transition-normal);
            letter-spacing: 0.02em;
            cursor: pointer;
            display: inline-block;
            text-align: center;
        }

        .btn-primary:hover {
            background: var(--accent-neon);
            color: var(--bg-primary);
            box-shadow: var(--glow-neon);
        }

        .btn-secondary {
            padding: 12px 28px;
            border: 1px solid var(--border-input);
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            background: var(--bg-secondary);
            transition: all var(--transition-normal);
            letter-spacing: 0.02em;
            cursor: pointer;
            display: inline-block;
            text-align: center;
        }

        .btn-secondary:hover {
            border-color: var(--accent-neon);
            color: var(--text-primary);
            background: rgba(0, 229, 255, 0.05);
        }

        .btn-cta {
            padding: 14px 32px;
            background: var(--accent-neon);
            color: var(--bg-primary);
            border-radius: var(--radius-sm);
            font-size: 1rem;
            font-weight: 700;
            transition: all var(--transition-normal);
            letter-spacing: 0.03em;
            cursor: pointer;
            display: inline-block;
            text-align: center;
            box-shadow: var(--glow-neon);
        }

        .btn-cta:hover {
            transform: scale(1.03);
            box-shadow: var(--glow-neon-strong);
        }

        .hero-visual {
            display: flex;
            align-items: center;
            justify-content: center;
            animation: fadeInUp 0.9s ease forwards;
        }

        .hero-visual img {
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-card);
            max-width: 100%;
            box-shadow: 0 0 40px rgba(0, 229, 255, 0.08);
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* Section */
        .section {
            padding: 80px 0;
        }

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

        .section-header h2 {
            font-size: 2rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            margin-bottom: 10px;
        }

        .section-header .section-subtitle {
            color: var(--text-secondary);
            font-size: 1rem;
            max-width: 600px;
            margin: 0 auto;
        }

        .section-label {
            display: inline-block;
            padding: 4px 14px;
            border: 1px solid var(--border-card);
            border-radius: 20px;
            font-size: 0.78rem;
            color: var(--accent-neon);
            letter-spacing: 0.05em;
            margin-bottom: 14px;
            background: rgba(0, 229, 255, 0.04);
        }

        /* Tools Grid */
        .tools-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            max-width: 1100px;
            margin: 0 auto;
        }

        .tool-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            padding: 32px 28px 24px;
            transition: all var(--transition-normal);
            text-align: center;
            position: relative;
            overflow: hidden;
            cursor: default;
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .tool-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: transparent;
            transition: all var(--transition-normal);
        }

        .tool-card:hover {
            border-color: var(--accent-neon);
            box-shadow: 0 0 20px rgba(0, 229, 255, 0.12);
            transform: translateY(-4px);
        }

        .tool-card:hover::before {
            background: var(--accent-neon);
            box-shadow: var(--glow-neon);
        }

        .tool-icon-wrapper {
            width: 72px;
            height: 72px;
            border-radius: var(--radius-md);
            background: rgba(0, 229, 255, 0.08);
            border: 1px solid rgba(0, 229, 255, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
            transition: all var(--transition-normal);
            font-size: 2rem;
            color: var(--accent-neon);
            flex-shrink: 0;
        }

        .tool-card:hover .tool-icon-wrapper {
            animation: bounceIcon 0.5s ease;
            background: rgba(0, 229, 255, 0.14);
            border-color: var(--accent-neon);
            box-shadow: var(--glow-neon);
        }

        @keyframes bounceIcon {
            0%,
            100% {
                transform: translateY(0);
            }
            25% {
                transform: translateY(-14px);
            }
            50% {
                transform: translateY(-4px);
            }
            75% {
                transform: translateY(-8px);
            }
        }

        .tool-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            letter-spacing: -0.01em;
        }

        .tool-card .tool-desc {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 18px;
            flex-grow: 1;
        }

        .tool-card .tool-btn {
            padding: 8px 20px;
            border: 1px solid var(--accent-neon);
            color: var(--accent-neon);
            border-radius: var(--radius-sm);
            font-size: 0.85rem;
            font-weight: 600;
            background: transparent;
            transition: all var(--transition-fast);
            cursor: pointer;
            letter-spacing: 0.02em;
        }

        .tool-card .tool-btn:hover {
            background: var(--accent-neon);
            color: var(--bg-primary);
            box-shadow: var(--glow-neon);
        }

        /* Process Section */
        .process-section {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
        }

        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            max-width: 1000px;
            margin: 0 auto;
        }

        .process-step {
            text-align: center;
            position: relative;
        }

        .process-step::after {
            content: '';
            position: absolute;
            top: 28px;
            left: 60%;
            width: 80%;
            height: 1px;
            background: rgba(0, 229, 255, 0.25);
            pointer-events: none;
        }

        .process-step:last-child::after {
            display: none;
        }

        .step-number {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--bg-primary);
            border: 2px solid var(--accent-neon);
            color: var(--accent-neon);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            font-weight: 700;
            margin: 0 auto 14px;
            position: relative;
            z-index: 2;
            transition: all var(--transition-normal);
        }

        .process-step:hover .step-number {
            background: var(--accent-neon);
            color: var(--bg-primary);
            box-shadow: var(--glow-neon);
        }

        .process-step h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .process-step p {
            font-size: 0.85rem;
            color: var(--text-secondary);
        }

        /* Featured Tool Detail */
        .featured-detail {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            max-width: 1100px;
            margin: 0 auto;
        }

        .featured-detail img {
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-card);
        }

        .featured-detail .detail-text h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }

        .featured-detail .detail-text p {
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 10px;
        }

        .featured-detail .detail-features {
            list-style: none;
            margin-top: 16px;
        }

        .featured-detail .detail-features li {
            padding: 6px 0 6px 24px;
            position: relative;
            color: var(--text-secondary);
            font-size: 0.95rem;
        }

        .featured-detail .detail-features li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 14px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent-neon);
            box-shadow: var(--glow-neon);
        }

        /* Stats */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            max-width: 1000px;
            margin: 0 auto;
            text-align: center;
        }

        .stat-item .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--accent-gold);
            font-family: var(--font-mono);
            letter-spacing: -0.03em;
            line-height: 1;
            text-shadow: var(--glow-gold);
        }

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

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

        .faq-list {
            max-width: 750px;
            margin: 0 auto;
        }

        .faq-item {
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-sm);
            margin-bottom: 10px;
            overflow: hidden;
            transition: all var(--transition-normal);
            background: var(--bg-primary);
        }

        .faq-item.active {
            border-color: var(--accent-neon);
            box-shadow: 0 0 8px rgba(0, 229, 255, 0.08);
        }

        .faq-question {
            padding: 16px 20px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-weight: 600;
            color: var(--text-primary);
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            user-select: none;
            gap: 12px;
        }

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

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid var(--text-muted);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            flex-shrink: 0;
            transition: all var(--transition-fast);
            color: var(--text-muted);
        }

        .faq-item.active .faq-icon {
            border-color: var(--accent-neon);
            color: var(--accent-neon);
            background: rgba(0, 229, 255, 0.1);
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 20px;
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.7;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }

        /* CTA Section */
        .cta-section {
            padding: 80px 0;
            text-align: center;
            position: relative;
            background: linear-gradient(180deg, transparent 0%, rgba(0, 229, 255, 0.04) 50%, transparent 100%);
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            margin-bottom: 10px;
        }

        .cta-section p {
            color: var(--text-secondary);
            font-size: 1rem;
            margin-bottom: 24px;
        }

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

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

        .footer-brand {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }

        .footer-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }

        .footer-col ul li {
            margin-bottom: 6px;
        }

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

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

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

        .footer-links-row {
            display: flex;
            gap: 8px;
            align-items: center;
            flex-wrap: wrap;
        }

        .footer-links-row a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

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

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
                text-align: center;
            }
            .hero-content .hero-subtitle {
                max-width: 100%;
            }
            .hero-buttons {
                justify-content: center;
            }
            .tools-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .process-step::after {
                display: none;
            }
            .featured-detail {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .hero-content h1 {
                font-size: 2.2rem;
            }
            .nav-links {
                display: none;
            }
            .nav-cta {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
        }

        @media (max-width: 640px) {
            .hero-content h1 {
                font-size: 1.7rem;
            }
            .hero-section {
                min-height: auto;
                padding: 40px 0;
            }
            .tools-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .process-steps {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .stat-item .stat-number {
                font-size: 2rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .section {
                padding: 48px 0;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .featured-detail .detail-text h3 {
                font-size: 1.2rem;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .container {
                padding: 0 16px;
            }
        }

        @media (max-width: 520px) {
            .hero-buttons {
                flex-direction: column;
                align-items: center;
            }
            .hero-buttons .btn-primary,
            .hero-buttons .btn-secondary {
                width: 100%;
                text-align: center;
            }
            .stats-row {
                grid-template-columns: 1fr;
            }
            .tool-card {
                padding: 24px 16px 18px;
            }
        }

/* roulang page: category5 */
:root {
            --bg-primary: #0A0E14;
            --bg-secondary: #141A24;
            --bg-tertiary: #060A10;
            --accent-neon: #00E5FF;
            --accent-gold: #FFB800;
            --text-primary: #E8ECF1;
            --text-secondary: #9BA3AF;
            --text-muted: #6B7280;
            --success: #00C853;
            --warning: #FF3D00;
            --border-subtle: rgba(255, 255, 255, 0.05);
            --border-card: rgba(0, 229, 255, 0.15);
            --border-input: #2A303A;
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --transition-fast: 0.2s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.35s ease;
            --glow-neon: 0 0 12px rgba(0, 229, 255, 0.25);
            --glow-neon-strong: 0 0 24px rgba(0, 229, 255, 0.45);
            --glow-gold: 0 0 10px rgba(255, 184, 0, 0.3);
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
            --font-mono: "SF Mono", "Menlo", "Monaco", "Consolas", "Courier New", monospace;
        }

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

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

        body {
            font-family: var(--font-stack);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.8;
            min-height: 100vh;
            overflow-x: hidden;
            padding-top: 60px;
        }

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

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

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

        input,
        select,
        textarea {
            font-family: inherit;
            outline: none;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* Navigation */
        .site-nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: 60px;
            background: rgba(10, 14, 20, 0.95);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-subtle);
            display: flex;
            align-items: center;
            transition: background var(--transition-normal);
        }

        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-logo .logo-icon {
            width: 32px;
            height: 32px;
            border-radius: var(--radius-sm);
            background: var(--accent-neon);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--bg-primary);
            font-weight: 900;
            font-size: 0.85rem;
            flex-shrink: 0;
        }

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

        .nav-links a {
            display: block;
            padding: 8px 14px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            position: relative;
            transition: color var(--transition-normal), background var(--transition-normal);
            white-space: nowrap;
        }

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

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

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--accent-neon);
            border-radius: 2px;
            box-shadow: var(--glow-neon);
            transition: all var(--transition-normal);
        }

        .nav-cta {
            padding: 8px 18px;
            border: 1px solid var(--accent-neon);
            color: var(--accent-neon);
            border-radius: var(--radius-sm);
            font-size: 0.85rem;
            font-weight: 600;
            background: transparent;
            transition: all var(--transition-normal);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-cta:hover {
            background: var(--accent-neon);
            color: var(--bg-primary);
            box-shadow: var(--glow-neon);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 4px 8px;
            line-height: 1;
        }

        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: 60px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(10, 14, 20, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            z-index: 999;
            flex-direction: column;
            padding: 20px 24px;
            gap: 4px;
            overflow-y: auto;
        }

        .mobile-nav-overlay.active {
            display: flex;
        }

        .mobile-nav-overlay a {
            display: block;
            padding: 14px 18px;
            font-size: 1.05rem;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: all var(--transition-normal);
            border: 1px solid transparent;
        }

        .mobile-nav-overlay a:hover,
        .mobile-nav-overlay a.active {
            color: var(--accent-neon);
            background: rgba(0, 229, 255, 0.06);
            border-color: rgba(0, 229, 255, 0.2);
        }

        .mobile-nav-overlay .mobile-cta {
            margin-top: 12px;
            text-align: center;
            padding: 14px 18px;
            border: 1px solid var(--accent-neon);
            color: var(--accent-neon);
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition-normal);
        }

        .mobile-nav-overlay .mobile-cta:hover {
            background: var(--accent-neon);
            color: var(--bg-primary);
            box-shadow: var(--glow-neon);
        }

        /* Hero */
        .hero-section {
            position: relative;
            min-height: 70vh;
            display: flex;
            align-items: center;
            background: linear-gradient(160deg, #0A0E14 0%, #0d1520 35%, #0f1a28 65%, #0A0E14 100%);
            overflow: hidden;
            padding: 80px 0 60px;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -15%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(0, 229, 255, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -20%;
            left: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(255, 184, 0, 0.04) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

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

        .hero-content {
            animation: fadeInUp 0.8s ease forwards;
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(0, 229, 255, 0.1);
            border: 1px solid rgba(0, 229, 255, 0.3);
            border-radius: 20px;
            font-size: 0.8rem;
            color: var(--accent-neon);
            font-weight: 500;
            letter-spacing: 0.04em;
            margin-bottom: 20px;
        }

        .hero-title {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.02em;
            line-height: 1.25;
            margin-bottom: 16px;
        }

        .hero-title .highlight {
            color: var(--accent-neon);
            position: relative;
        }

        .hero-subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 28px;
            max-width: 480px;
        }

        .hero-cta-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-block;
            padding: 12px 28px;
            background: transparent;
            border: 1px solid var(--accent-neon);
            color: var(--accent-neon);
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 600;
            transition: all var(--transition-normal);
            cursor: pointer;
            text-align: center;
        }

        .btn-primary:hover {
            background: var(--accent-neon);
            color: var(--bg-primary);
            box-shadow: var(--glow-neon);
            transform: translateY(-1px);
        }

        .btn-secondary {
            display: inline-block;
            padding: 12px 28px;
            background: var(--bg-secondary);
            border: 1px solid var(--border-input);
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            transition: all var(--transition-normal);
            cursor: pointer;
            text-align: center;
        }

        .btn-secondary:hover {
            border-color: var(--accent-neon);
            color: var(--text-primary);
            background: rgba(0, 229, 255, 0.05);
        }

        .btn-cta-glow {
            display: inline-block;
            padding: 14px 32px;
            background: var(--accent-neon);
            color: var(--bg-primary);
            border-radius: var(--radius-sm);
            font-size: 1rem;
            font-weight: 700;
            transition: all var(--transition-normal);
            cursor: pointer;
            text-align: center;
            box-shadow: var(--glow-neon);
        }

        .btn-cta-glow:hover {
            transform: scale(1.03);
            box-shadow: var(--glow-neon-strong);
        }

        .hero-visual {
            display: flex;
            align-items: center;
            justify-content: center;
            animation: fadeInUp 0.8s ease 0.2s forwards;
            opacity: 0;
        }

        .hero-visual-inner {
            width: 100%;
            max-width: 420px;
            background: var(--bg-secondary);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: 0 0 40px rgba(0, 229, 255, 0.08);
        }

        .hero-visual-inner .rank-label {
            font-size: 0.85rem;
            color: var(--accent-gold);
            font-weight: 600;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .hero-visual-inner .rank-label::before {
            content: '◆';
            font-size: 0.6rem;
        }

        .mini-rank-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .mini-rank-list li {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 8px 12px;
            background: rgba(255, 255, 255, 0.02);
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            color: var(--text-secondary);
            transition: all var(--transition-normal);
        }

        .mini-rank-list li:hover {
            background: rgba(0, 229, 255, 0.05);
            color: var(--text-primary);
        }

        .mini-rank-list .rank-num {
            color: var(--accent-neon);
            font-weight: 700;
            font-family: var(--font-mono);
            font-size: 0.95rem;
            width: 28px;
        }

        .mini-rank-list .rank-name {
            flex: 1;
            margin: 0 10px;
        }

        .mini-rank-list .rank-rate {
            color: var(--accent-gold);
            font-weight: 600;
            font-family: var(--font-mono);
            font-size: 0.85rem;
        }

        /* Section */
        .section {
            padding: 70px 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            color: var(--accent-neon);
            font-weight: 600;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 10px;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.02em;
            line-height: 1.3;
            margin-bottom: 10px;
        }

        .section-desc {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.7;
        }

        /* Expert Cards Grid */
        .expert-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }

        .expert-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            padding: 28px;
            display: flex;
            gap: 20px;
            align-items: flex-start;
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }

        .expert-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            border-radius: var(--radius-md);
            opacity: 0;
            transition: opacity var(--transition-normal);
            pointer-events: none;
            box-shadow: inset 0 0 0 1px var(--accent-neon), 0 0 30px rgba(0, 229, 255, 0.2);
            z-index: 1;
        }

        .expert-card:hover {
            transform: translateY(-3px);
            border-color: rgba(0, 229, 255, 0.4);
        }

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

        .expert-avatar {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            flex-shrink: 0;
            overflow: hidden;
            border: 2px solid var(--border-card);
            position: relative;
            z-index: 2;
            background: var(--bg-primary);
        }

        .expert-avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .expert-info {
            flex: 1;
            position: relative;
            z-index: 2;
        }

        .expert-name {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
            letter-spacing: -0.01em;
        }

        .expert-title-role {
            font-size: 0.85rem;
            color: var(--accent-neon);
            font-weight: 500;
            margin-bottom: 8px;
        }

        .expert-bio {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 14px;
        }

        .expert-stats {
            display: flex;
            gap: 20px;
            margin-bottom: 12px;
            flex-wrap: wrap;
        }

        .expert-stat-item {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .expert-stat-item strong {
            color: var(--accent-gold);
            font-family: var(--font-mono);
            font-size: 0.9rem;
        }

        .progress-bar-wrap {
            width: 100%;
            height: 6px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 3px;
            overflow: hidden;
            position: relative;
            z-index: 2;
        }

        .progress-bar-fill {
            height: 100%;
            border-radius: 3px;
            background: linear-gradient(90deg, var(--accent-neon), var(--accent-gold));
            transition: width 1.5s ease;
            position: relative;
        }

        .progress-bar-fill::after {
            content: '';
            position: absolute;
            right: 0;
            top: 0;
            width: 8px;
            height: 100%;
            background: #fff;
            border-radius: 50%;
            opacity: 0.6;
            box-shadow: 0 0 8px rgba(255, 255, 255, 0.5);
        }

        .progress-label {
            display: flex;
            justify-content: space-between;
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-bottom: 6px;
            position: relative;
            z-index: 2;
        }

        .progress-label .rate-value {
            color: var(--accent-gold);
            font-weight: 700;
            font-family: var(--font-mono);
        }

        /* Stats Section */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .stat-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 28px 20px;
            text-align: center;
            transition: all var(--transition-normal);
        }

        .stat-card:hover {
            border-color: var(--border-card);
            box-shadow: 0 0 20px rgba(0, 229, 255, 0.06);
        }

        .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--accent-neon);
            font-family: var(--font-mono);
            letter-spacing: -0.02em;
            margin-bottom: 6px;
        }

        .stat-number.gold {
            color: var(--accent-gold);
        }

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

        /* Deep Content */
        .deep-content {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            line-height: 1.9;
        }

        .deep-content h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
            border-left: 3px solid var(--accent-neon);
            padding-left: 14px;
        }

        .deep-content h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--accent-neon);
            margin: 28px 0 12px;
            letter-spacing: -0.01em;
        }

        .deep-content p {
            color: var(--text-secondary);
            margin-bottom: 16px;
            text-align: justify;
        }

        .deep-content ul,
        .deep-content ol {
            color: var(--text-secondary);
            margin: 12px 0 20px 20px;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .deep-content ul li::marker {
            color: var(--accent-neon);
        }

        .deep-content ol li::marker {
            color: var(--accent-gold);
            font-weight: 600;
        }

        .deep-content blockquote {
            border-left: 3px solid var(--accent-gold);
            padding: 16px 20px;
            margin: 20px 0;
            background: rgba(255, 184, 0, 0.04);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-primary);
            font-style: italic;
            font-size: 0.95rem;
        }

        /* Flow Steps */
        .flow-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }

        .flow-step {
            text-align: center;
            position: relative;
            padding: 28px 16px;
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            transition: all var(--transition-normal);
        }

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

        .flow-step-num {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--bg-primary);
            border: 2px solid var(--accent-neon);
            color: var(--accent-neon);
            font-weight: 700;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            font-family: var(--font-mono);
            transition: all var(--transition-normal);
        }

        .flow-step:hover .flow-step-num {
            background: var(--accent-neon);
            color: var(--bg-primary);
            box-shadow: var(--glow-neon);
        }

        .flow-step h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .flow-step p {
            font-size: 0.82rem;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        /* Testimonials */
        .testimonial-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
            max-width: 800px;
            margin: 0 auto;
        }

        .testimonial-item {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            position: relative;
            transition: all var(--transition-normal);
        }

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

        .testimonial-item::before {
            content: '"';
            position: absolute;
            top: 10px;
            left: 16px;
            font-size: 4rem;
            color: rgba(0, 229, 255, 0.1);
            font-family: Georgia, serif;
            line-height: 1;
            pointer-events: none;
        }

        .testimonial-text {
            font-size: 0.95rem;
            color: var(--text-primary);
            line-height: 1.7;
            margin-bottom: 12px;
            padding-left: 20px;
        }

        .testimonial-author {
            font-size: 0.85rem;
            color: var(--accent-neon);
            font-weight: 600;
            padding-left: 20px;
        }

        .testimonial-author span {
            color: var(--text-muted);
            font-weight: 400;
            margin-left: 6px;
        }

        /* FAQ */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .faq-item {
            background: var(--bg-secondary);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: all var(--transition-normal);
        }

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

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 16px 20px;
            background: transparent;
            color: var(--text-primary);
            font-size: 0.95rem;
            font-weight: 600;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            cursor: pointer;
            transition: all var(--transition-normal);
            border: none;
        }

        .faq-question:hover {
            color: var(--accent-neon);
            background: rgba(0, 229, 255, 0.03);
        }

        .faq-icon {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            border: 1px solid var(--text-muted);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 0.8rem;
            color: var(--text-muted);
            transition: all var(--transition-normal);
        }

        .faq-item.active .faq-icon {
            border-color: var(--accent-neon);
            color: var(--accent-neon);
            background: rgba(0, 229, 255, 0.1);
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 20px;
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.7;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(160deg, #0d1520 0%, #0f1a28 50%, #0A0E14 100%);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-lg);
            padding: 60px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(0, 229, 255, 0.07) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            position: relative;
            z-index: 2;
            letter-spacing: -0.02em;
        }

        .cta-section p {
            font-size: 1rem;
            color: var(--text-secondary);
            margin-bottom: 24px;
            position: relative;
            z-index: 2;
        }

        .cta-section .btn-cta-glow {
            position: relative;
            z-index: 2;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-tertiary);
            border-top: 1px solid var(--border-subtle);
            padding: 50px 0 30px;
            margin-top: 60px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }

        .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            letter-spacing: -0.02em;
        }

        .footer-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }

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

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

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

        .footer-bottom {
            border-top: 1px solid var(--border-subtle);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 10px;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

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

        .footer-links-row a {
            color: var(--text-muted);
            transition: color var(--transition-normal);
        }

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

        .footer-links-row span {
            color: var(--text-muted);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .hero-visual {
                order: -1;
            }
            .hero-title {
                font-size: 2.2rem;
            }
            .expert-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .flow-steps {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .deep-content {
                padding: 32px 24px;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .nav-cta {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .hero-section {
                min-height: auto;
                padding: 50px 0 40px;
            }
            .hero-title {
                font-size: 1.8rem;
            }
            .hero-subtitle {
                font-size: 0.95rem;
            }
            .section {
                padding: 40px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .expert-card {
                flex-direction: column;
                align-items: center;
                text-align: center;
                padding: 20px;
            }
            .expert-avatar {
                width: 64px;
                height: 64px;
            }
            .expert-stats {
                justify-content: center;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-number {
                font-size: 2rem;
            }
            .flow-steps {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .footer-links-row {
                justify-content: center;
            }
            .cta-section {
                padding: 40px 20px;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .deep-content {
                padding: 24px 16px;
                font-size: 0.9rem;
            }
            .deep-content h2 {
                font-size: 1.3rem;
            }
            .deep-content h3 {
                font-size: 1.05rem;
            }
            .hero-cta-group {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-cta-group .btn-primary,
            .hero-cta-group .btn-secondary {
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .hero-title {
                font-size: 1.5rem;
            }
            .stats-row {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .expert-card {
                padding: 16px;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .hero-visual-inner {
                padding: 18px;
            }
        }