/* roulang page: index */
:root {
            --bg-primary: #0F0C20;
            --bg-secondary: #0B1A30;
            --accent-cyan: #00F0FF;
            --accent-lime: #CCFF00;
            --text-white: #FFFFFF;
            --text-silver: #A6ACAF;
            --border-subtle: rgba(0, 240, 255, 0.15);
            --shadow-neon: 0 0 15px rgba(0, 240, 255, 0.5);
            --shadow-lime: 0 0 15px rgba(204, 255, 0, 0.4);
            --radius-md: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.5rem;
            --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            background: var(--bg-primary);
            color: var(--text-white);
            font-family: 'Inter', 'Segoe UI', 'Roboto', system-ui, sans-serif;
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

        button, input, select, textarea {
            font-family: inherit;
            font-size: 100%;
            line-height: 1.5;
        }

        button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(15, 12, 32, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-subtle);
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            gap: 1rem;
        }

        .nav-logo {
            font-weight: 800;
            font-size: 1.05rem;
            letter-spacing: -0.01em;
            color: var(--text-white);
            line-height: 1.3;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            white-space: nowrap;
        }

        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0F0C20;
            font-weight: 900;
            font-size: 1.2rem;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 1.5rem;
            list-style: none;
        }

        .nav-links a {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-silver);
            padding: 0.4rem 0.2rem;
            position: relative;
            white-space: nowrap;
        }

        .nav-links a:hover, .nav-links a.active {
            color: var(--text-white);
        }

        .nav-links a.active::after, .nav-links a:hover::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--accent-cyan), var(--accent-lime));
            border-radius: 2px;
        }

        .nav-auth {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            white-space: nowrap;
        }

        .btn-login {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-white);
            padding: 0.5rem 0.9rem;
            border-radius: 8px;
            transition: var(--transition-base);
        }

        .btn-login:hover {
            background: rgba(255, 255, 255, 0.08);
        }

        .btn-signup {
            font-size: 0.85rem;
            font-weight: 700;
            color: #0F0C20;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            padding: 0.5rem 1.2rem;
            border-radius: 8px;
            box-shadow: 0 0 12px rgba(0, 240, 255, 0.3);
            transition: var(--transition-base);
        }

        .btn-signup:hover {
            box-shadow: var(--shadow-neon);
            transform: translateY(-1px);
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-white);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 0.5rem;
        }

        /* Hero Section */
        .hero-section {
            position: relative;
            background: linear-gradient(160deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
            border-bottom: 1px solid var(--border-subtle);
            overflow: hidden;
            padding: 3rem 0 2rem;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            z-index: 0;
        }

        .hero-grid {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(0, 240, 255, 0.1);
            border: 1px solid rgba(0, 240, 255, 0.3);
            color: var(--accent-cyan);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.35rem 0.8rem;
            border-radius: 999px;
            text-transform: uppercase;
            letter-spacing: 0.04em;
        }

        .hero-title {
            font-size: clamp(1.8rem, 4vw, 2.8rem);
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.02em;
            color: var(--text-white);
            max-width: 700px;
        }

        .hero-title .highlight {
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }

        .hero-description {
            font-size: 1rem;
            color: var(--text-silver);
            max-width: 640px;
            line-height: 1.65;
        }

        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            align-items: center;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            color: #0F0C20;
            font-weight: 700;
            padding: 0.75rem 1.6rem;
            border-radius: 10px;
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.3);
            transition: var(--transition-base);
            border: none;
            cursor: pointer;
            font-size: 0.9rem;
        }

        .btn-primary:hover {
            box-shadow: var(--shadow-neon);
            transform: translateY(-2px);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: var(--text-white);
            font-weight: 600;
            padding: 0.75rem 1.6rem;
            border-radius: 10px;
            transition: var(--transition-base);
            cursor: pointer;
            font-size: 0.9rem;
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.4);
        }

        .hero-icon-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.8rem;
            margin-top: 0.5rem;
        }

        .hero-icon-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 0.4rem;
            text-align: center;
            padding: 1rem 0.5rem;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 12px;
            transition: var(--transition-base);
        }

        .hero-icon-item:hover {
            background: rgba(0, 240, 255, 0.06);
            border-color: rgba(0, 240, 255, 0.25);
        }

        .hero-icon-item i {
            font-size: 1.6rem;
            color: var(--accent-cyan);
        }

        .hero-icon-item span {
            font-size: 0.72rem;
            color: var(--text-silver);
            font-weight: 500;
        }

        .hero-status-bar {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 1rem;
            margin-top: 1.2rem;
            padding: 0.8rem 1rem;
            background: rgba(0, 240, 255, 0.05);
            border: 1px solid rgba(0, 240, 255, 0.15);
            border-radius: 12px;
            font-size: 0.8rem;
            color: var(--text-silver);
        }

        .status-dot {
            width: 8px;
            height: 8px;
            background: var(--accent-lime);
            border-radius: 50%;
            display: inline-block;
            margin-right: 0.3rem;
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.3); }
        }

        /* Section common */
        .section {
            padding: 3.5rem 0;
        }

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

        .section-header {
            margin-bottom: 2rem;
        }

        .section-tag {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--accent-cyan);
            margin-bottom: 0.5rem;
        }

        .section-title {
            font-size: clamp(1.5rem, 3vw, 2rem);
            font-weight: 700;
            letter-spacing: -0.01em;
            color: var(--text-white);
            line-height: 1.3;
        }

        .section-desc {
            font-size: 0.95rem;
            color: var(--text-silver);
            max-width: 680px;
            line-height: 1.6;
            margin-top: 0.5rem;
        }

        /* Play intro section */
        .play-intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2.5rem;
            align-items: center;
        }

        .play-intro-content h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 0.8rem;
        }

        .play-intro-content p {
            font-size: 0.9rem;
            color: var(--text-silver);
            line-height: 1.65;
            margin-bottom: 1rem;
        }

        .play-intro-visual {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.1);
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
        }

        .play-intro-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* Reward preview */
        .reward-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.2rem;
        }

        .reward-card {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            transition: var(--transition-base);
        }

        .reward-card:hover {
            background: rgba(0, 240, 255, 0.05);
            border-color: rgba(0, 240, 255, 0.25);
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
        }

        .reward-icon {
            width: 48px;
            height: 48px;
            background: linear-gradient(135deg, rgba(0, 240, 255, 0.2), rgba(204, 255, 0, 0.2));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 1.4rem;
            margin-bottom: 0.8rem;
        }

        .reward-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 0.4rem;
        }

        .reward-card p {
            font-size: 0.82rem;
            color: var(--text-silver);
            line-height: 1.55;
        }

        .reward-value {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--accent-lime);
            background: rgba(204, 255, 0, 0.1);
            padding: 0.2rem 0.6rem;
            border-radius: 999px;
            margin-top: 0.6rem;
        }

        /* Task progress */
        .task-progress-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            align-items: start;
        }

        .task-steps {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .task-step {
            display: flex;
            gap: 1rem;
            align-items: flex-start;
            padding: 1rem;
            background: rgba(255, 255, 255, 0.03);
            border-radius: 12px;
            border-left: 3px solid var(--accent-cyan);
            transition: var(--transition-base);
        }

        .task-step:hover {
            background: rgba(0, 240, 255, 0.05);
            border-left-color: var(--accent-lime);
        }

        .step-number {
            width: 32px;
            height: 32px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 0.85rem;
            color: #0F0C20;
            flex-shrink: 0;
        }

        .task-step h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 0.2rem;
        }

        .task-step p {
            font-size: 0.8rem;
            color: var(--text-silver);
            line-height: 1.5;
        }

        .task-visual {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .task-visual img {
            width: 100%;
            height: 280px;
            object-fit: cover;
        }

        /* CMS news section */
        .news-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            align-items: start;
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }

        .news-item {
            display: flex;
            align-items: center;
            gap: 1rem;
            padding: 1rem;
            background: rgba(255, 255, 255, 0.03);
            border-radius: 10px;
            border: 1px solid transparent;
            transition: var(--transition-base);
        }

        .news-item:hover {
            background: rgba(0, 240, 255, 0.05);
            border-color: rgba(0, 240, 255, 0.2);
        }

        .news-item-icon {
            width: 40px;
            height: 40px;
            background: rgba(0, 240, 255, 0.1);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            flex-shrink: 0;
        }

        .news-item-content h4 {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-white);
            line-height: 1.4;
            margin-bottom: 0.2rem;
        }

        .news-item-content .news-meta {
            font-size: 0.72rem;
            color: var(--text-silver);
        }

        .news-featured {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            padding: 1.5rem;
        }

        .news-featured h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 1rem;
        }

        .news-featured .featured-item {
            padding: 0.8rem 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .news-featured .featured-item:last-child {
            border-bottom: none;
        }

        .news-featured .featured-item a {
            font-size: 0.85rem;
            color: var(--text-silver);
            line-height: 1.4;
            display: block;
        }

        .news-featured .featured-item a:hover {
            color: var(--accent-cyan);
        }

        /* Safety section */
        .safety-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1rem;
        }

        .safety-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 0.5rem;
            text-align: center;
            padding: 1.2rem 0.8rem;
            background: rgba(255, 255, 255, 0.03);
            border-radius: 12px;
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: var(--transition-base);
        }

        .safety-item:hover {
            background: rgba(0, 240, 255, 0.05);
            border-color: rgba(0, 240, 255, 0.2);
        }

        .safety-item i {
            font-size: 1.5rem;
            color: var(--accent-cyan);
        }

        .safety-item span {
            font-size: 0.75rem;
            color: var(--text-silver);
            font-weight: 500;
        }

        /* Screenshot stage */
        .screenshot-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1rem;
        }

        .screenshot-card {
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: var(--transition-base);
            cursor: pointer;
        }

        .screenshot-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
            border-color: rgba(0, 240, 255, 0.3);
        }

        .screenshot-card img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }

        /* Vertical card stream */
        .vertical-stream {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1rem;
        }

        .vertical-card {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition-base);
            cursor: pointer;
        }

        .vertical-card:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 240, 255, 0.3);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
        }

        .vertical-card img {
            width: 100%;
            height: 220px;
            object-fit: cover;
        }

        .vertical-card-content {
            padding: 1rem;
        }

        .vertical-card-content h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-white);
            line-height: 1.4;
            margin-bottom: 0.4rem;
        }

        .vertical-card-content p {
            font-size: 0.78rem;
            color: var(--text-silver);
            line-height: 1.5;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
            max-width: 800px;
        }

        .faq-item {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 12px;
            overflow: hidden;
            transition: var(--transition-base);
        }

        .faq-item:hover {
            border-color: rgba(0, 240, 255, 0.25);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1rem 1.2rem;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-white);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            gap: 1rem;
        }

        .faq-question i {
            color: var(--accent-cyan);
            transition: var(--transition-base);
            flex-shrink: 0;
        }

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

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

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

        .faq-answer-inner {
            padding: 0 1.2rem 1.2rem;
            font-size: 0.82rem;
            color: var(--text-silver);
            line-height: 1.6;
        }

        /* CTA section */
        .cta-section {
            background: linear-gradient(135deg, var(--bg-secondary), var(--bg-primary));
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
            padding: 3rem 0;
            text-align: center;
        }

        .cta-title {
            font-size: clamp(1.5rem, 3vw, 2rem);
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 0.8rem;
        }

        .cta-desc {
            font-size: 0.95rem;
            color: var(--text-silver);
            max-width: 560px;
            margin: 0 auto 1.5rem;
            line-height: 1.6;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-primary);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 2.5rem 0 1.5rem;
        }

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

        .footer-brand h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 0.6rem;
            line-height: 1.4;
        }

        .footer-brand p {
            font-size: 0.8rem;
            color: var(--text-silver);
            line-height: 1.6;
            max-width: 380px;
        }

        .footer-col h4 {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 0.8rem;
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

        .footer-col ul a {
            font-size: 0.8rem;
            color: var(--text-silver);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 1.2rem;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 0.8rem;
            font-size: 0.75rem;
            color: var(--text-silver);
        }

        .footer-license {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            flex-wrap: wrap;
        }

        .footer-license span {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            font-size: 0.72rem;
            color: var(--text-silver);
        }

        .footer-license i {
            color: var(--accent-cyan);
        }

        /* FAB */
        .floating-fab {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 50;
            display: flex;
            align-items: center;
            gap: 0.6rem;
            background: rgba(15, 12, 32, 0.7);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(0, 240, 255, 0.4);
            border-radius: 999px;
            padding: 0.7rem 1.2rem;
            color: var(--text-white);
            cursor: pointer;
            transition: var(--transition-base);
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.3);
            opacity: 0.7;
            font-size: 0.8rem;
            font-weight: 600;
            text-decoration: none;
        }

        .floating-fab:hover {
            opacity: 1;
            box-shadow: 0 0 25px rgba(0, 240, 255, 0.6);
            transform: scale(1.05);
        }

        .floating-fab:active {
            transform: scale(0.95);
            border-color: var(--accent-lime);
        }

        .floating-fab i {
            font-size: 1.2rem;
            color: var(--accent-cyan);
        }

        .fab-notification {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 12px;
            height: 12px;
            background: #FF0055;
            border-radius: 50%;
            border: 2px solid var(--bg-primary);
            animation: blink-neon 1.5s infinite;
        }

        @keyframes blink-neon {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-icon-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .reward-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .safety-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .screenshot-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .vertical-stream {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 68px;
                left: 0;
                right: 0;
                background: rgba(15, 12, 32, 0.98);
                flex-direction: column;
                padding: 1rem;
                gap: 0.8rem;
                border-bottom: 1px solid var(--border-subtle);
            }

            .nav-links.open {
                display: flex;
            }

            .mobile-menu-toggle {
                display: block;
            }

            .nav-auth {
                gap: 0.4rem;
            }

            .btn-login, .btn-signup {
                padding: 0.4rem 0.8rem;
                font-size: 0.78rem;
            }

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

            .play-intro-grid,
            .task-progress-grid,
            .news-grid {
                grid-template-columns: 1fr;
            }

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

        @media (max-width: 520px) {
            .hero-icon-grid {
                grid-template-columns: 1fr 1fr;
            }
            .reward-grid {
                grid-template-columns: 1fr;
            }
            .safety-grid {
                grid-template-columns: 1fr 1fr;
            }
            .screenshot-grid {
                grid-template-columns: 1fr;
            }
            .vertical-stream {
                grid-template-columns: 1fr;
            }
            .hero-cta-group {
                flex-direction: column;
                align-items: stretch;
            }
            .btn-primary, .btn-secondary {
                justify-content: center;
                width: 100%;
            }
            .floating-fab {
                left: 0.5rem;
                bottom: 5rem;
                padding: 0.5rem 0.8rem;
                font-size: 0.7rem;
            }
        }

/* roulang page: category1 */
:root {
            --primary-bg: #0B1622;
            --secondary-bg: #111E2C;
            --card-bg: #16283A;
            --accent-gold: #D4A23C;
            --accent-bronze: #B8860B;
            --text-primary: #F5F5F7;
            --text-secondary: #A8B3BF;
            --text-muted: #6B7A8C;
            --border-color: #233548;
            --border-light: #2C4158;
            --btn-primary: #C5A059;
            --btn-primary-hover: #D4AC0D;
            --shadow-card: 0 8px 24px rgba(0,0,0,0.35);
            --shadow-hover: 0 12px 32px rgba(0,0,0,0.5);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        
        body {
            font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            background-color: var(--primary-bg);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        
        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(11, 22, 34, 0.95);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-color);
        }
        
        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }
        
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--accent-gold);
            white-space: nowrap;
        }
        
        .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--accent-bronze), var(--accent-gold));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0B1622;
            font-size: 1.2rem;
            flex-shrink: 0;
        }
        
        .nav-links {
            display: flex;
            list-style: none;
            gap: 28px;
            align-items: center;
        }
        
        .nav-links a {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 0;
            position: relative;
            white-space: nowrap;
        }
        
        .nav-links a:hover {
            color: var(--text-primary);
        }
        
        .nav-links a.active {
            color: var(--accent-gold);
        }
        
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--accent-gold);
            border-radius: 2px;
        }
        
        .nav-auth {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        
        .btn-login {
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            white-space: nowrap;
        }
        
        .btn-login:hover {
            color: var(--text-primary);
            background: rgba(255,255,255,0.05);
        }
        
        .btn-signup {
            font-size: 0.85rem;
            font-weight: 600;
            color: #0B1622;
            background: linear-gradient(135deg, var(--accent-bronze), var(--accent-gold));
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            white-space: nowrap;
        }
        
        .btn-signup:hover {
            box-shadow: 0 4px 16px rgba(212, 162, 60, 0.4);
            transform: translateY(-1px);
        }
        
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 8px;
        }
        
        /* Hero */
        .category-hero {
            background-image: linear-gradient(rgba(11, 22, 34, 0.88), rgba(11, 22, 34, 0.94)), url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            padding: 80px 0 64px;
            border-bottom: 1px solid var(--border-color);
        }
        
        .hero-breadcrumb {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        
        .hero-breadcrumb a {
            color: var(--text-secondary);
        }
        
        .hero-breadcrumb a:hover {
            color: var(--accent-gold);
        }
        
        .category-hero h1 {
            font-size: 2.5rem;
            font-weight: 700;
            line-height: 1.25;
            margin-bottom: 20px;
            color: var(--text-primary);
            max-width: 800px;
        }
        
        .category-hero h1 .highlight {
            color: var(--accent-gold);
        }
        
        .category-hero .hero-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 700px;
            line-height: 1.7;
        }
        
        /* Section */
        .section {
            padding: 64px 0;
        }
        
        .section-header {
            margin-bottom: 40px;
        }
        
        .section-header h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
            line-height: 1.3;
        }
        
        .section-header p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            max-width: 650px;
            line-height: 1.7;
        }
        
        /* Steps */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        
        .step-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            transition: var(--transition);
            position: relative;
        }
        
        .step-card:hover {
            border-color: var(--accent-bronze);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        
        .step-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: rgba(212, 162, 60, 0.2);
            line-height: 1;
            margin-bottom: 16px;
        }
        
        .step-card h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 12px;
            color: var(--text-primary);
        }
        
        .step-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        
        /* Experience Section */
        .experience-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: start;
        }
        
        .experience-content h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 20px;
            line-height: 1.3;
        }
        
        .experience-content p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
            margin-bottom: 16px;
        }
        
        .experience-list {
            list-style: none;
            margin-top: 24px;
        }
        
        .experience-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 14px 0;
            border-bottom: 1px solid var(--border-color);
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        
        .experience-list li:last-child {
            border-bottom: none;
        }
        
        .experience-list li i {
            color: var(--accent-gold);
            font-size: 1rem;
            margin-top: 4px;
            flex-shrink: 0;
        }
        
        .experience-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
        }
        
        .experience-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 350px;
        }
        
        /* Tips Cards */
        .tips-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        
        .tip-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 28px;
            transition: var(--transition);
        }
        
        .tip-card:hover {
            border-color: var(--accent-bronze);
            box-shadow: var(--shadow-card);
        }
        
        .tip-icon {
            width: 48px;
            height: 48px;
            background: rgba(212, 162, 60, 0.12);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-gold);
            font-size: 1.3rem;
            margin-bottom: 16px;
        }
        
        .tip-card h3 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 10px;
        }
        
        .tip-card p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.65;
        }
        
        /* FAQ */
        .faq-list {
            max-width: 800px;
        }
        
        .faq-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            overflow: hidden;
            background: var(--secondary-bg);
            transition: var(--transition);
        }
        
        .faq-item:hover {
            border-color: var(--border-light);
        }
        
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 0.95rem;
            font-weight: 600;
            padding: 18px 20px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            text-align: left;
            transition: var(--transition);
        }
        
        .faq-question:hover {
            color: var(--accent-gold);
        }
        
        .faq-question i {
            font-size: 0.85rem;
            transition: var(--transition);
            color: var(--text-muted);
            flex-shrink: 0;
        }
        
        .faq-question.active i {
            transform: rotate(180deg);
            color: var(--accent-gold);
        }
        
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .faq-answer p {
            padding: 0 20px 18px;
            color: var(--text-secondary);
            font-size: 0.88rem;
            line-height: 1.7;
        }
        
        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, var(--secondary-bg), #1A2D42);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            text-align: center;
        }
        
        .cta-section h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 16px;
            line-height: 1.3;
        }
        
        .cta-section p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            max-width: 600px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }
        
        .btn-cta {
            display: inline-block;
            background: linear-gradient(135deg, var(--accent-bronze), var(--accent-gold));
            color: #0B1622;
            font-weight: 700;
            font-size: 1rem;
            padding: 14px 36px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }
        
        .btn-cta:hover {
            box-shadow: 0 6px 24px rgba(212, 162, 60, 0.45);
            transform: translateY(-2px);
        }
        
        /* Footer */
        .site-footer {
            background: #080F17;
            border-top: 1px solid var(--border-color);
            padding: 56px 0 32px;
            margin-top: 64px;
        }
        
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        
        .footer-brand h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 12px;
            line-height: 1.5;
        }
        
        .footer-brand p {
            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: 16px;
        }
        
        .footer-col ul {
            list-style: none;
        }
        
        .footer-col ul li {
            margin-bottom: 10px;
        }
        
        .footer-col ul a {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: var(--transition);
        }
        
        .footer-col ul a:hover {
            color: var(--accent-gold);
        }
        
        .footer-col ul a.active {
            color: var(--accent-gold);
        }
        
        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: 24px;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        
        .footer-license {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
        }
        
        .footer-license span {
            font-size: 0.8rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        
        .footer-license i {
            color: var(--accent-gold);
            font-size: 0.8rem;
        }
        
        .footer-bottom > div:last-child {
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        
        /* FAB */
        .fab-support {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 60;
            width: 56px;
            height: 56px;
            background: rgba(11, 22, 34, 0.85);
            backdrop-filter: blur(12px);
            border: 2px solid var(--accent-gold);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-gold);
            font-size: 1.4rem;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 4px 20px rgba(212, 162, 60, 0.25);
            animation: fab-breathe 3s ease-in-out infinite;
        }
        
        .fab-support:hover {
            transform: scale(1.1);
            opacity: 1;
            box-shadow: 0 6px 28px rgba(212, 162, 60, 0.4);
        }
        
        .fab-support:active {
            transform: scale(0.95);
        }
        
        .fab-support .notification-dot {
            position: absolute;
            top: 2px;
            right: 2px;
            width: 12px;
            height: 12px;
            background: #E53E3E;
            border-radius: 50%;
            border: 2px solid var(--primary-bg);
            animation: dot-blink 1.5s ease-in-out infinite;
        }
        
        @keyframes fab-breathe {
            0%, 100% { opacity: 0.7; }
            50% { opacity: 1; }
        }
        
        @keyframes dot-blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }
        
        /* Responsive */
        @media (max-width: 1024px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .experience-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            
            .experience-image img {
                min-height: 250px;
            }
        }
        
        @media (max-width: 768px) {
            .nav-container {
                height: 60px;
            }
            
            .nav-links {
                display: none;
                position: absolute;
                top: 60px;
                left: 0;
                right: 0;
                background: rgba(11, 22, 34, 0.98);
                flex-direction: column;
                padding: 20px 24px;
                gap: 16px;
                border-bottom: 1px solid var(--border-color);
            }
            
            .nav-links.open {
                display: flex;
            }
            
            .mobile-menu-toggle {
                display: block;
            }
            
            .category-hero {
                padding: 48px 0 40px;
            }
            
            .category-hero h1 {
                font-size: 1.8rem;
            }
            
            .steps-grid {
                grid-template-columns: 1fr;
            }
            
            .tips-grid {
                grid-template-columns: 1fr;
            }
            
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            
            .cta-section {
                padding: 32px 20px;
            }
            
            .cta-section h2 {
                font-size: 1.4rem;
            }
            
            .section {
                padding: 48px 0;
            }
            
            .section-header h2 {
                font-size: 1.5rem;
            }
        }
        
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            
            .nav-logo span:last-child {
                font-size: 0.85rem;
            }
            
            .btn-login, .btn-signup {
                padding: 8px 12px;
                font-size: 0.75rem;
            }
            
            .nav-auth {
                gap: 6px;
            }
            
            .category-hero h1 {
                font-size: 1.5rem;
            }
            
            .category-hero .hero-desc {
                font-size: 0.9rem;
            }
            
            .fab-support {
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
                left: 12px;
                bottom: 80px;
            }
        }

/* roulang page: article */
:root {
            --bg-primary: #0B1A30;
            --bg-secondary: #0F0C20;
            --bg-card: #14243B;
            --accent-lime: #CCFF00;
            --accent-cyan: #00F0FF;
            --text-white: #FFFFFF;
            --text-silver: #A6ACAF;
            --border-neon: rgba(0, 240, 255, 0.3);
            --shadow-neon: 0 0 15px rgba(0, 240, 255, 0.5);
            --radius-md: 12px;
            --radius-lg: 20px;
            --transition: all 0.3s ease;
            --font-sans: 'Segoe UI', 'Roboto', system-ui, -apple-system, sans-serif;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: var(--font-sans);
            background: linear-gradient(145deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
            color: var(--text-white);
            line-height: 1.6;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        button {
            cursor: pointer;
            font-family: inherit;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        /* Header */
        .site-header {
            background: rgba(15, 12, 32, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0, 240, 255, 0.15);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
        }
        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
            gap: 20px;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.2rem;
            letter-spacing: -0.02em;
            color: var(--text-white);
            white-space: nowrap;
        }
        .nav-logo:hover {
            color: var(--accent-cyan);
        }
        .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0B1A30;
            font-size: 1.3rem;
            box-shadow: var(--shadow-neon);
        }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 8px;
            flex-wrap: wrap;
        }
        .nav-links li a {
            display: block;
            padding: 8px 16px;
            border-radius: 30px;
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-silver);
            border: 1px solid transparent;
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-links li a:hover {
            color: var(--text-white);
            border-color: rgba(0, 240, 255, 0.3);
            background: rgba(0, 240, 255, 0.05);
        }
        .nav-links li a.active {
            background: rgba(0, 240, 255, 0.12);
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            font-weight: 600;
        }
        .nav-auth {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .btn-login {
            padding: 8px 18px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-white);
            border: 1px solid rgba(255,255,255,0.2);
            transition: var(--transition);
            white-space: nowrap;
        }
        .btn-login:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.05);
        }
        .btn-signup {
            padding: 8px 22px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 0.9rem;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            color: #0B1A30;
            box-shadow: 0 4px 14px rgba(0, 240, 255, 0.3);
            transition: var(--transition);
            white-space: nowrap;
        }
        .btn-signup:hover {
            box-shadow: var(--shadow-neon);
            transform: translateY(-1px);
        }
        .mobile-menu-toggle {
            display: none;
            background: none;
            border: 1px solid rgba(255,255,255,0.2);
            color: var(--text-white);
            width: 42px;
            height: 42px;
            border-radius: 10px;
            font-size: 1.2rem;
            transition: var(--transition);
        }
        .mobile-menu-toggle:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
        }
        /* Article Body */
        .article-main {
            padding: 48px 0 64px;
        }
        .article-header {
            margin-bottom: 32px;
            border-bottom: 1px solid rgba(0, 240, 255, 0.15);
            padding-bottom: 24px;
        }
        .article-category {
            display: inline-block;
            background: rgba(0, 240, 255, 0.1);
            border: 1px solid rgba(0, 240, 255, 0.3);
            color: var(--accent-cyan);
            padding: 4px 14px;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            text-transform: uppercase;
            margin-bottom: 14px;
        }
        .article-title {
            font-size: 2.5rem;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.02em;
            margin-bottom: 12px;
            color: var(--text-white);
        }
        .article-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            color: var(--text-silver);
            font-size: 0.9rem;
            flex-wrap: wrap;
        }
        .article-meta i {
            color: var(--accent-cyan);
            margin-right: 6px;
        }
        .article-hero-img {
            margin-bottom: 32px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid rgba(0, 240, 255, 0.2);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
        }
        .article-hero-img img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }
        .article-content {
            max-width: 800px;
            font-size: 1.05rem;
            color: #E2E8F0;
            line-height: 1.7;
        }
        .article-content h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--accent-cyan);
            margin: 28px 0 14px;
            letter-spacing: -0.01em;
        }
        .article-content h3 {
            font-size: 1.4rem;
            font-weight: 600;
            color: var(--accent-lime);
            margin: 22px 0 10px;
        }
        .article-content p {
            margin-bottom: 16px;
        }
        .article-content ul, .article-content ol {
            margin: 16px 0 16px 24px;
            padding-left: 16px;
        }
        .article-content li {
            margin-bottom: 8px;
        }
        .article-content a {
            color: var(--accent-cyan);
            text-decoration: underline;
        }
        .article-content a:hover {
            color: var(--accent-lime);
        }
        .article-content blockquote {
            border-left: 4px solid var(--accent-cyan);
            background: rgba(0, 240, 255, 0.05);
            padding: 16px 20px;
            margin: 20px 0;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            color: #CBD5E1;
            font-style: italic;
        }
        .article-not-found {
            background: rgba(255, 0, 0, 0.08);
            border: 1px solid rgba(255, 0, 0, 0.3);
            border-radius: var(--radius-md);
            padding: 40px 24px;
            text-align: center;
            color: #FCA5A5;
        }
        .article-not-found a {
            color: var(--accent-cyan);
            font-weight: 600;
            text-decoration: underline;
        }
        .article-cta {
            margin-top: 40px;
            background: linear-gradient(135deg, rgba(0, 240, 255, 0.08), rgba(204, 255, 0, 0.05));
            border: 1px solid rgba(0, 240, 255, 0.2);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }
        .article-cta h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .article-cta p {
            color: var(--text-silver);
        }
        .btn-cta {
            padding: 12px 28px;
            border-radius: 30px;
            font-weight: 700;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            color: #0B1A30;
            box-shadow: var(--shadow-neon);
            transition: var(--transition);
            white-space: nowrap;
        }
        .btn-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 25px rgba(0, 240, 255, 0.7);
        }
        /* Footer */
        .site-footer {
            background: #08060F;
            border-top: 1px solid rgba(0, 240, 255, 0.15);
            padding: 48px 0 24px;
            margin-top: 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        .footer-brand h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--accent-cyan);
        }
        .footer-brand p {
            color: var(--text-silver);
            font-size: 0.95rem;
            max-width: 400px;
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--text-white);
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: var(--text-silver);
            font-size: 0.95rem;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent-cyan);
        }
        .footer-col ul li a.active {
            color: var(--accent-cyan);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 16px;
            color: var(--text-silver);
            font-size: 0.85rem;
        }
        .footer-license {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }
        .footer-license span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .footer-license i {
            color: var(--accent-lime);
        }
        /* FAB */
        .fab-support {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 90;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: rgba(11, 26, 48, 0.85);
            backdrop-filter: blur(8px);
            border: 2px solid var(--accent-cyan);
            color: var(--accent-cyan);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.5);
            transition: var(--transition);
            animation: fabFloat 3s ease-in-out infinite;
        }
        .fab-support:hover {
            transform: scale(1.1);
            box-shadow: 0 0 25px rgba(0, 240, 255, 0.8);
            background: rgba(0, 240, 255, 0.15);
        }
        @keyframes fabFloat {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .article-title {
                font-size: 2.1rem;
            }
        }
        @media (max-width: 768px) {
            .nav-container {
                height: auto;
                padding: 12px 0;
                flex-wrap: wrap;
            }
            .nav-links {
                order: 3;
                width: 100%;
                justify-content: center;
                gap: 6px;
                padding-top: 8px;
            }
            .nav-links li a {
                padding: 6px 12px;
                font-size: 0.85rem;
            }
            .nav-auth {
                gap: 6px;
            }
            .btn-login, .btn-signup {
                padding: 6px 14px;
                font-size: 0.85rem;
            }
            .mobile-menu-toggle {
                display: flex;
                align-items: center;
                justify-content: center;
            }
            .article-title {
                font-size: 1.8rem;
            }
            .article-main {
                padding: 32px 0 48px;
            }
            .article-content {
                font-size: 1rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-license {
                justify-content: center;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .nav-logo {
                font-size: 1rem;
            }
            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 1rem;
            }
            .btn-login, .btn-signup {
                padding: 5px 12px;
                font-size: 0.8rem;
            }
            .article-title {
                font-size: 1.5rem;
            }
            .article-cta {
                flex-direction: column;
                text-align: center;
            }
            .fab-support {
                left: 12px;
                bottom: 80px;
                width: 46px;
                height: 46px;
                font-size: 1.2rem;
            }
        }

/* roulang page: category2 */
:root {
            --color-bg-primary: #0F0C20;
            --color-bg-secondary: #0B1A30;
            --color-bg-card: #151233;
            --color-accent-primary: #CCFF00;
            --color-accent-secondary: #00F0FF;
            --color-text-primary: #FFFFFF;
            --color-text-secondary: #A6ACAF;
            --color-text-muted: #6B7280;
            --color-border: #2A2F4A;
            --color-danger: #FF2D55;
            --color-success: #34C759;
            --color-gold: #FFD700;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
            --shadow-md: 0 8px 24px rgba(0,0,0,0.4);
            --shadow-lg: 0 16px 40px rgba(0,0,0,0.5);
            --shadow-glow-cyan: 0 0 15px rgba(0,240,255,0.5);
            --shadow-glow-lime: 0 0 20px rgba(204,255,0,0.4);
            --font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --transition-slow: 0.5s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            background: var(--color-bg-primary);
            color: var(--color-text-primary);
            line-height: 1.6;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

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

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

        /* Header */
        .site-header {
            background: rgba(15, 12, 32, 0.95);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(42, 47, 74, 0.6);
            position: sticky;
            top: 0;
            z-index: 100;
            transition: all var(--transition-base);
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 16px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--color-text-primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
        }

        .logo-icon {
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-bg-primary);
            font-size: 1.1rem;
            box-shadow: var(--shadow-glow-lime);
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
        }

        .nav-links a {
            padding: 8px 16px;
            border-radius: 8px;
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            transition: all var(--transition-fast);
            position: relative;
        }

        .nav-links a:hover {
            color: var(--color-text-primary);
            background: rgba(255,255,255,0.05);
        }

        .nav-links a.active {
            color: var(--color-accent-primary);
            background: rgba(204,255,0,0.08);
        }

        .nav-auth {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .btn-login {
            padding: 8px 18px;
            border-radius: 8px;
            font-weight: 500;
            font-size: 0.9rem;
            color: var(--color-text-primary);
            border: 1px solid var(--color-border);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-login:hover {
            border-color: var(--color-accent-secondary);
            color: var(--color-accent-secondary);
            background: rgba(0,240,255,0.05);
        }

        .btn-signup {
            padding: 8px 20px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 0.9rem;
            background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
            color: var(--color-bg-primary);
            border: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
            box-shadow: var(--shadow-glow-lime);
        }

        .btn-signup:hover {
            transform: translateY(-1px);
            box-shadow: 0 0 25px rgba(204,255,0,0.6);
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--color-text-primary);
            font-size: 1.4rem;
            cursor: pointer;
            padding: 6px;
            border-radius: 8px;
            transition: all var(--transition-fast);
        }

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

        /* Hero Section */
        .hero-section {
            padding: 80px 0 60px;
            position: relative;
            background: radial-gradient(ellipse at 30% 20%, rgba(0,240,255,0.08) 0%, transparent 50%),
                        radial-gradient(ellipse at 70% 60%, rgba(204,255,0,0.06) 0%, transparent 50%),
                        var(--color-bg-primary);
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .hero-content {
            text-align: left;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            border-radius: 20px;
            background: rgba(0,240,255,0.08);
            border: 1px solid rgba(0,240,255,0.2);
            color: var(--color-accent-secondary);
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.05em;
            text-transform: uppercase;
            margin-bottom: 20px;
        }

        .hero-content h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.03em;
            margin-bottom: 20px;
            background: linear-gradient(135deg, #FFFFFF 30%, var(--color-accent-primary) 70%, var(--color-accent-secondary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-content p {
            font-size: 1.1rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 520px;
        }

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

        .btn-primary {
            padding: 14px 32px;
            border-radius: 12px;
            font-weight: 700;
            font-size: 1rem;
            background: linear-gradient(135deg, var(--color-accent-primary), #B3E600);
            color: var(--color-bg-primary);
            border: none;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-glow-lime);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 35px rgba(204,255,0,0.7);
        }

        .btn-secondary {
            padding: 14px 32px;
            border-radius: 12px;
            font-weight: 600;
            font-size: 1rem;
            background: transparent;
            color: var(--color-accent-secondary);
            border: 1px solid var(--color-accent-secondary);
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .btn-secondary:hover {
            background: rgba(0,240,255,0.08);
            box-shadow: var(--shadow-glow-cyan);
            transform: translateY(-2px);
        }

        .hero-visual {
            position: relative;
        }

        .hero-visual img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            border: 1px solid rgba(0,240,255,0.2);
        }

        .hero-stats {
            position: absolute;
            bottom: -20px;
            left: -20px;
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 16px 24px;
            display: flex;
            gap: 24px;
            box-shadow: var(--shadow-md);
        }

        .hero-stat {
            text-align: left;
        }

        .hero-stat-value {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--color-accent-primary);
        }

        .hero-stat-label {
            font-size: 0.8rem;
            color: var(--color-text-secondary);
        }

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

        .section-header {
            margin-bottom: 48px;
            max-width: 720px;
        }

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

        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            margin-bottom: 14px;
            line-height: 1.3;
        }

        .section-header p {
            color: var(--color-text-secondary);
            font-size: 1.05rem;
            line-height: 1.7;
        }

        .section-tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 20px;
            background: rgba(204,255,0,0.08);
            color: var(--color-accent-primary);
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.05em;
            text-transform: uppercase;
            margin-bottom: 14px;
        }

        /* Steps Section */
        .steps-section {
            background: var(--color-bg-secondary);
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .step-card {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .step-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--color-accent-primary), var(--color-accent-secondary));
            opacity: 0;
            transition: opacity var(--transition-base);
        }

        .step-card:hover {
            border-color: rgba(0,240,255,0.4);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

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

        .step-number {
            width: 52px;
            height: 52px;
            background: linear-gradient(135deg, rgba(204,255,0,0.15), rgba(0,240,255,0.15));
            border: 1px solid rgba(204,255,0,0.3);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--color-accent-primary);
            margin-bottom: 18px;
        }

        .step-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }

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

        /* Proof Section */
        .proof-section {
            background: var(--color-bg-primary);
        }

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

        .proof-card {
            display: flex;
            gap: 20px;
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 28px;
            transition: all var(--transition-base);
        }

        .proof-card:hover {
            border-color: rgba(204,255,0,0.3);
            box-shadow: var(--shadow-md);
        }

        .proof-icon {
            width: 56px;
            height: 56px;
            background: rgba(0,240,255,0.08);
            border: 1px solid rgba(0,240,255,0.2);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-accent-secondary);
            font-size: 1.4rem;
            flex-shrink: 0;
        }

        .proof-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

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

        /* Objections / FAQ Section */
        .faq-section {
            background: var(--color-bg-secondary);
        }

        .faq-list {
            max-width: 800px;
        }

        .faq-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            background: var(--color-bg-card);
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .faq-item:hover {
            border-color: rgba(0,240,255,0.3);
        }

        .faq-question {
            width: 100%;
            padding: 20px 24px;
            background: none;
            border: none;
            color: var(--color-text-primary);
            font-size: 1rem;
            font-weight: 600;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            text-align: left;
            gap: 16px;
            transition: all var(--transition-fast);
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            transition: transform var(--transition-base);
            color: var(--color-accent-secondary);
        }

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

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

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

        .faq-answer-inner {
            padding: 0 24px 20px;
            color: var(--color-text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* CTA Section */
        .cta-section {
            padding: 80px 0;
            background: radial-gradient(ellipse at center, rgba(204,255,0,0.08) 0%, transparent 60%),
                        var(--color-bg-primary);
        }

        .cta-box {
            background: var(--color-bg-card);
            border: 1px solid rgba(204,255,0,0.3);
            border-radius: var(--radius-xl);
            padding: 60px 48px;
            text-align: center;
            box-shadow: var(--shadow-lg);
            position: relative;
            overflow: hidden;
        }

        .cta-box::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle at center, rgba(0,240,255,0.05) 0%, transparent 40%);
            pointer-events: none;
        }

        .cta-box h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
            position: relative;
        }

        .cta-box p {
            color: var(--color-text-secondary);
            font-size: 1.05rem;
            max-width: 560px;
            margin: 0 auto 32px;
            line-height: 1.7;
            position: relative;
        }

        /* Footer */
        .site-footer {
            background: #0A0818;
            border-top: 1px solid var(--color-border);
            padding: 60px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
        }

        .footer-brand h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 14px;
            letter-spacing: -0.02em;
            line-height: 1.4;
        }

        .footer-brand p {
            color: var(--color-text-secondary);
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 420px;
        }

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

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

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

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

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

        .footer-col ul a.active {
            color: var(--color-accent-primary);
        }

        .footer-bottom {
            border-top: 1px solid var(--color-border);
            padding: 24px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }

        .footer-license {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            font-size: 0.85rem;
            color: var(--color-text-secondary);
        }

        .footer-license span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .footer-license i {
            color: var(--color-accent-primary);
        }

        .footer-bottom > div:last-child {
            font-size: 0.85rem;
            color: var(--color-text-muted);
        }

        /* FAB */
        .floating-fab {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 90;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(15, 12, 32, 0.8);
            backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(15, 12, 32, 0.8), rgba(15, 12, 32, 0.8)), linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
            background-origin: border-box;
            background-clip: padding-box, border-box;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-accent-secondary);
            font-size: 1.3rem;
            cursor: pointer;
            opacity: 0.6;
            transition: all var(--transition-base);
            box-shadow: 0 0 15px rgba(0,240,255,0.3);
        }

        .floating-fab:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 30px rgba(0,240,255,0.6);
        }

        .floating-fab:active {
            transform: scale(0.95);
            border-color: #FF007F;
            color: #FF007F;
        }

        .fab-notification {
            position: absolute;
            top: 4px;
            right: 4px;
            width: 10px;
            height: 10px;
            background: var(--color-danger);
            border-radius: 50%;
            animation: blink 1.5s ease-in-out infinite;
        }

        @keyframes blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .hero-content h1 {
                font-size: 2.4rem;
            }

            .hero-stats {
                position: static;
                margin-top: 20px;
                display: inline-flex;
            }

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

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

        @media (max-width: 768px) {
            .nav-container {
                height: 64px;
            }

            .nav-links {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: rgba(15, 12, 32, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px 24px;
                gap: 4px;
                border-bottom: 1px solid var(--color-border);
            }

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

            .nav-links a {
                padding: 12px 16px;
                width: 100%;
                border-radius: 8px;
            }

            .mobile-menu-toggle {
                display: block;
            }

            .btn-login {
                display: none;
            }

            .btn-signup {
                padding: 8px 14px;
                font-size: 0.85rem;
            }

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

            .hero-content p {
                font-size: 1rem;
            }

            .hero-actions {
                flex-direction: column;
            }

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

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

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

            .section-header h2 {
                font-size: 1.7rem;
            }

            .cta-box {
                padding: 40px 24px;
            }

            .cta-box h2 {
                font-size: 1.6rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

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

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .hero-section {
                padding: 60px 0 40px;
            }

            .hero-content h1 {
                font-size: 1.7rem;
            }

            .hero-stats {
                gap: 16px;
                padding: 12px 16px;
            }

            .hero-stat-value {
                font-size: 1.2rem;
            }

            .hero-stat-label {
                font-size: 0.7rem;
            }

            .section {
                padding: 50px 0;
            }

            .section-header h2 {
                font-size: 1.5rem;
            }

            .step-card {
                padding: 24px 20px;
            }

            .proof-card {
                flex-direction: column;
                gap: 14px;
                padding: 20px;
            }

            .floating-fab {
                width: 48px;
                height: 48px;
                font-size: 1.1rem;
                left: 12px;
                bottom: 80px;
            }
        }