/* roulang page: index */
:root {
            --primary-bg: #0F0C20;
            --deep-ocean: #0B1A30;
            --accent-lime: #CCFF00;
            --accent-cyan: #00F0FF;
            --text-white: #FFFFFF;
            --text-silver: #A6ACAF;
            --border-glow: rgba(0, 240, 255, 0.3);
            --card-bg: rgba(15, 12, 32, 0.9);
            --radius-lg: 1.25rem;
            --radius-md: 0.75rem;
            --shadow-neon: 0 0 15px rgba(0, 240, 255, 0.5);
            --shadow-neon-hover: 0 0 25px rgba(204, 255, 0, 0.6);
            --spacing-section: 4.5rem;
            --font-sans: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            background: var(--primary-bg);
            color: var(--text-white);
            line-height: 1.65;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: all 0.25s ease;
        }
        button, input, select, textarea {
            font-family: inherit;
            outline: none;
            border: none;
        }
        button:focus-visible, a:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 3px;
        }
        .container {
            width: min(1200px, 92%);
            margin-inline: auto;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            font-weight: 700;
            border-radius: 9999px;
            padding: 0.75rem 1.75rem;
            font-size: 0.95rem;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            cursor: pointer;
            white-space: nowrap;
            letter-spacing: 0.02em;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--accent-lime), #a6e600);
            color: #0F0C20;
            box-shadow: 0 0 20px rgba(204, 255, 0, 0.35);
        }
        .btn-primary:hover {
            transform: translateY(-3px) scale(1.02);
            box-shadow: 0 0 35px rgba(204, 255, 0, 0.55);
        }
        .btn-secondary {
            background: rgba(0, 240, 255, 0.12);
            color: var(--accent-cyan);
            border: 1.5px solid rgba(0, 240, 255, 0.5);
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.15);
        }
        .btn-secondary:hover {
            background: rgba(0, 240, 255, 0.25);
            border-color: var(--accent-cyan);
            box-shadow: 0 0 25px rgba(0, 240, 255, 0.45);
            transform: translateY(-2px);
        }
        .btn-outline-light {
            background: transparent;
            color: var(--text-white);
            border: 1.5px solid rgba(255, 255, 255, 0.4);
        }
        .btn-outline-light:hover {
            border-color: var(--text-white);
            background: rgba(255, 255, 255, 0.08);
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 0.3rem 0.9rem;
            border-radius: 9999px;
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }
        .badge-hot {
            background: rgba(255, 0, 127, 0.2);
            color: #FF79C6;
            border: 1px solid rgba(255, 0, 127, 0.4);
        }
        .badge-new {
            background: rgba(204, 255, 0, 0.15);
            color: var(--accent-lime);
            border: 1px solid rgba(204, 255, 0, 0.4);
        }
        .badge-safe {
            background: rgba(0, 240, 255, 0.15);
            color: var(--accent-cyan);
            border: 1px solid rgba(0, 240, 255, 0.4);
        }
        .card {
            background: var(--card-bg);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-lg);
            backdrop-filter: blur(8px);
            transition: all 0.35s ease;
            overflow: hidden;
            position: relative;
        }
        .card-hover:hover {
            border-color: rgba(0, 240, 255, 0.5);
            box-shadow: var(--shadow-neon);
            transform: translateY(-6px);
        }
        .section-tag {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--accent-cyan);
            text-transform: uppercase;
            letter-spacing: 0.1em;
            margin-bottom: 0.75rem;
            border-left: 3px solid var(--accent-lime);
            padding-left: 0.75rem;
        }
        .section-title {
            font-size: clamp(1.8rem, 3.5vw, 2.6rem);
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            color: var(--text-white);
            margin-bottom: 1rem;
        }
        .section-desc {
            font-size: 1.05rem;
            color: var(--text-silver);
            max-width: 680px;
            line-height: 1.7;
            margin-bottom: 2rem;
        }
        .nav-link {
            position: relative;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-silver);
            padding: 0.4rem 0.75rem;
            border-radius: 0.5rem;
            transition: all 0.25s ease;
        }
        .nav-link:hover {
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.06);
        }
        .nav-link.active {
            color: var(--accent-lime);
            background: rgba(204, 255, 0, 0.08);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 18px;
            height: 3px;
            background: var(--accent-lime);
            border-radius: 2px;
            box-shadow: 0 0 10px var(--accent-lime);
        }
        .fab-support {
            position: fixed;
            left: 1.25rem;
            bottom: 5.5rem;
            z-index: 50;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(0, 0, 0, 0.75);
            backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-clip: padding-box;
            border-image: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan)) 1;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.5);
            cursor: pointer;
            opacity: 0.6;
            transition: all 0.35s ease;
            animation: fab-breathe 2.8s infinite;
        }
        .fab-support:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 28px rgba(0, 240, 255, 0.8);
            animation-play-state: paused;
        }
        .fab-support:active {
            transform: scale(0.95);
        }
        .fab-support i {
            font-size: 1.6rem;
            color: var(--accent-cyan);
            filter: drop-shadow(0 0 6px rgba(0, 240, 255, 0.8));
        }
        .fab-support .notification-dot {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 14px;
            height: 14px;
            background: #FF007F;
            border-radius: 50%;
            box-shadow: 0 0 10px #FF007F;
            animation: dot-blink 1.4s infinite;
        }
        @keyframes fab-breathe {
            0%, 100% { opacity: 0.6; transform: translateY(0); }
            50% { opacity: 0.85; transform: translateY(-5px); }
        }
        @keyframes dot-blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }
        @keyframes neon-flicker {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.7; }
        }
        @keyframes scroll-track {
            0% { transform: translateX(0); }
            100% { transform: translateX(-50%); }
        }
        .marquee-track {
            display: flex;
            gap: 2rem;
            animation: scroll-track 35s linear infinite;
            white-space: nowrap;
        }
        .marquee-track:hover {
            animation-play-state: paused;
        }
        .game-card-img {
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .game-card:hover .game-card-img {
            transform: scale(1.08);
        }
        .divider-glow {
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--accent-cyan), var(--accent-lime), transparent);
            margin: 2rem 0;
            opacity: 0.5;
        }
        .hero-gradient {
            background: linear-gradient(160deg, #0F0C20 0%, #0B1A30 50%, #0F0C20 100%);
        }
        .backdrop-image {
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .backdrop-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15,12,32,0.92) 0%, rgba(15,12,32,0.85) 100%);
            z-index: 0;
        }
        .backdrop-image > * {
            position: relative;
            z-index: 1;
        }
        .mobile-menu {
            display: none;
        }
        @media (max-width: 768px) {
            :root {
                --spacing-section: 3rem;
            }
            .desktop-nav-links {
                display: none !important;
            }
            .mobile-menu-btn {
                display: flex !important;
            }
            .mobile-menu {
                display: none;
                flex-direction: column;
                gap: 0.5rem;
                padding: 1rem 0;
                background: rgba(15, 12, 32, 0.98);
                border-top: 1px solid rgba(255, 255, 255, 0.08);
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                z-index: 40;
            }
            .mobile-menu.open {
                display: flex;
            }
            .hero-title {
                font-size: clamp(1.9rem, 7vw, 2.6rem) !important;
            }
            .fab-support {
                left: 0.75rem;
                bottom: 5rem;
                width: 50px;
                height: 50px;
            }
            .fab-support i {
                font-size: 1.4rem;
            }
        }
        @media (max-width: 520px) {
            .btn {
                padding: 0.65rem 1.25rem;
                font-size: 0.85rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .section-desc {
                font-size: 0.95rem;
            }
        }
        .glow-text {
            text-shadow: 0 0 20px rgba(0, 240, 255, 0.6);
        }
        .neon-border {
            border: 1px solid rgba(0, 240, 255, 0.4);
            box-shadow: inset 0 0 20px rgba(0, 240, 255, 0.08), 0 0 15px rgba(0, 240, 255, 0.15);
        }

/* roulang page: article */
:root {
            --bg-primary: #0F0C20;
            --bg-secondary: #0B1A30;
            --accent-lime: #CCFF00;
            --accent-cyan: #00F0FF;
            --text-white: #FFFFFF;
            --text-silver: #A6ACAF;
            --border-neon: rgba(0, 240, 255, 0.2);
            --shadow-neon: 0 0 15px rgba(0, 240, 255, 0.5);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --spacing-section: 4rem;
            --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            background: var(--bg-primary);
            color: var(--text-white);
            line-height: 1.6;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition-base);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            outline: none;
            border: none;
            background: none;
            color: inherit;
        }
        button:focus-visible, a:focus-visible, input:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 3px;
            border-radius: 4px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
            width: 100%;
        }
        /* Navigation */
        .nav-link {
            display: inline-block;
            padding: 0.5rem 1rem;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-silver);
            border-radius: 6px;
            position: relative;
            transition: var(--transition-base);
        }
        .nav-link:hover {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.08);
        }
        .nav-link.active {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.12);
            font-weight: 600;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 2px;
            background: linear-gradient(90deg, var(--accent-lime), var(--accent-cyan));
            border-radius: 2px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            font-weight: 600;
            border-radius: 8px;
            cursor: pointer;
            transition: var(--transition-base);
            white-space: nowrap;
            text-align: center;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            color: #0F0C20;
            box-shadow: 0 4px 20px rgba(204, 255, 0, 0.3);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(0, 240, 255, 0.45);
        }
        .btn-outline-light {
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: var(--text-white);
            background: transparent;
        }
        .btn-outline-light:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.08);
        }
        .btn-lg {
            padding: 0.875rem 2rem;
            font-size: 1rem;
            border-radius: 10px;
        }
        .btn-md {
            padding: 0.625rem 1.5rem;
            font-size: 0.875rem;
        }
        .btn-sm {
            padding: 0.5rem 1rem;
            font-size: 0.75rem;
        }
        /* Mobile Menu */
        .mobile-menu {
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            background: rgba(15, 12, 32, 0.98);
            backdrop-filter: blur(12px);
            border: 1px solid var(--border-neon);
            border-top: none;
            border-radius: 0 0 16px 16px;
            padding: 0.5rem 0;
            display: none;
            z-index: 50;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
        }
        .mobile-menu.open {
            display: block;
            animation: slideDown 0.25s ease-out;
        }
        @keyframes slideDown {
            from { opacity: 0; transform: translateY(-10px); }
            to { opacity: 1; transform: translateY(0); }
        }
        @media (max-width: 768px) {
            .desktop-nav-links {
                display: none !important;
            }
            .mobile-menu-btn {
                display: flex !important;
            }
        }
        @media (min-width: 769px) {
            .mobile-menu-btn {
                display: none !important;
            }
        }
        /* Article Content Styles */
        .article-content {
            max-width: 720px;
            margin: 0 auto;
            font-size: 1.0625rem;
            line-height: 1.7;
            color: #D1D5DB;
        }
        .article-content h2 {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--text-white);
            margin-top: 2.5rem;
            margin-bottom: 1rem;
            padding-left: 1rem;
            border-left: 4px solid var(--accent-cyan);
            line-height: 1.3;
        }
        .article-content h3 {
            font-size: 1.375rem;
            font-weight: 600;
            color: var(--accent-lime);
            margin-top: 2rem;
            margin-bottom: 0.875rem;
            line-height: 1.35;
        }
        .article-content p {
            margin-bottom: 1.25rem;
            text-align: left;
        }
        .article-content ul, .article-content ol {
            margin: 1rem 0 1.5rem 1.5rem;
            padding-left: 0.5rem;
        }
        .article-content li {
            margin-bottom: 0.625rem;
            position: relative;
            padding-left: 0.5rem;
            text-align: left;
        }
        .article-content ul li::before {
            content: '◆';
            color: var(--accent-cyan);
            font-size: 0.75rem;
            margin-right: 0.75rem;
            display: inline-block;
        }
        .article-content ol li {
            counter-increment: item;
        }
        .article-content ol {
            counter-reset: item;
            list-style: none;
        }
        .article-content ol li::before {
            content: counter(item) '. ';
            color: var(--accent-lime);
            font-weight: 700;
            margin-right: 0.5rem;
        }
        .article-content blockquote {
            margin: 1.5rem 0;
            padding: 1.25rem 1.5rem;
            background: rgba(0, 240, 255, 0.05);
            border-left: 4px solid var(--accent-lime);
            border-radius: 0 8px 8px 0;
            color: var(--text-silver);
            font-style: italic;
        }
        .article-content img {
            border-radius: 12px;
            margin: 1.5rem 0;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
        }
        .article-content a {
            color: var(--accent-cyan);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .article-content a:hover {
            color: var(--accent-lime);
        }
        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            font-size: 0.9375rem;
        }
        .article-content th {
            background: rgba(0, 240, 255, 0.1);
            color: var(--accent-cyan);
            font-weight: 600;
            padding: 0.75rem 1rem;
            text-align: left;
            border-bottom: 2px solid var(--border-neon);
        }
        .article-content td {
            padding: 0.75rem 1rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            color: var(--text-silver);
        }
        /* FAB */
        .fab-support {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(15, 12, 32, 0.85);
            backdrop-filter: blur(8px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(15, 12, 32, 0.85), rgba(15, 12, 32, 0.85)), linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            background-origin: border-box;
            background-clip: padding-box, border-box;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 1.5rem;
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.4);
            transition: var(--transition-base);
            animation: fabFloat 3s ease-in-out infinite;
            cursor: pointer;
        }
        .fab-support:hover {
            transform: scale(1.1);
            box-shadow: 0 0 35px rgba(0, 240, 255, 0.7);
            animation-play-state: paused;
        }
        .fab-support:active {
            transform: scale(0.95);
            border-color: #FF007F;
        }
        .fab-support .notification-dot {
            position: absolute;
            top: 2px;
            right: 2px;
            width: 12px;
            height: 12px;
            background: #FF007F;
            border-radius: 50%;
            border: 2px solid #0F0C20;
            animation: blinkDot 1.5s ease-in-out infinite;
        }
        @keyframes fabFloat {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-8px); }
        }
        @keyframes blinkDot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }
        /* Section Spacing */
        .section-padding {
            padding: var(--spacing-section) 0;
        }
        @media (max-width: 768px) {
            :root {
                --spacing-section: 2.5rem;
            }
            .container {
                padding: 0 1rem;
            }
            .article-content {
                font-size: 1rem;
            }
            .article-content h2 {
                font-size: 1.5rem;
            }
            .article-content h3 {
                font-size: 1.25rem;
            }
        }
        @media (max-width: 520px) {
            .article-content {
                font-size: 0.9375rem;
            }
            .btn-lg {
                padding: 0.75rem 1.5rem;
                font-size: 0.875rem;
            }
        }

/* roulang page: category1 */
:root {
            --primary-bg: #0F0C20;
            --secondary-bg: #0B1A30;
            --accent-lime: #CCFF00;
            --accent-cyan: #00F0FF;
            --accent-pink: #FF007F;
            --text-white: #FFFFFF;
            --text-silver: #A6ACAF;
            --border-glow: rgba(0, 240, 255, 0.2);
            --card-bg: rgba(15, 12, 32, 0.7);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --shadow-neon: 0 0 20px rgba(0, 240, 255, 0.3);
            --shadow-glow: 0 0 15px rgba(0, 240, 255, 0.5);
            --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            background-color: var(--primary-bg);
            color: var(--text-white);
            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 {
            text-decoration: none;
            color: inherit;
            transition: var(--transition-base);
        }

        button {
            cursor: pointer;
            border: none;
            outline: none;
            transition: var(--transition-base);
        }

        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        /* Navigation */
        .nav-link {
            padding: 0.5rem 1rem;
            border-radius: var(--radius-sm);
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-silver);
            transition: var(--transition-base);
            position: relative;
        }

        .nav-link:hover {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.05);
        }

        .nav-link.active {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.1);
            font-weight: 600;
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--accent-cyan);
            border-radius: 2px;
            box-shadow: 0 0 8px rgba(0, 240, 255, 0.6);
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            font-weight: 600;
            border-radius: var(--radius-sm);
            transition: var(--transition-base);
            cursor: pointer;
            text-align: center;
        }

        .btn-primary {
            background: linear-gradient(135deg, #CCFF00 0%, #00F0FF 100%);
            color: #0F0C20;
            font-weight: 700;
            box-shadow: 0 4px 15px rgba(0, 240, 255, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(0, 240, 255, 0.5);
            filter: brightness(1.05);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 10px rgba(0, 240, 255, 0.3);
        }

        .btn-outline-light {
            background: transparent;
            color: var(--text-white);
            border: 1px solid rgba(255, 255, 255, 0.3);
        }

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

        .btn-cyan {
            background: var(--accent-cyan);
            color: #0F0C20;
            font-weight: 700;
            box-shadow: 0 4px 15px rgba(0, 240, 255, 0.4);
        }

        .btn-cyan:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(0, 240, 255, 0.6);
            filter: brightness(1.05);
        }

        .btn-lime {
            background: var(--accent-lime);
            color: #0F0C20;
            font-weight: 700;
            box-shadow: 0 4px 15px rgba(204, 255, 0, 0.3);
        }

        .btn-lime:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(204, 255, 0, 0.5);
        }

        /* Mobile Menu */
        .mobile-menu {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            background: rgba(15, 12, 32, 0.98);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-glow);
            z-index: 50;
            padding: 0.5rem 0;
        }

        .mobile-menu.open {
            display: block;
            animation: slideDown 0.3s ease-out;
        }

        @keyframes slideDown {
            from {
                opacity: 0;
                transform: translateY(-10px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* Hero Section */
        .hero-bg {
            background: linear-gradient(135deg, #0F0C20 0%, #0B1A30 50%, #1E0B36 100%);
            position: relative;
            overflow: hidden;
        }

        .hero-bg::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(0, 240, 255, 0.1) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-bg::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(204, 255, 0, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        /* Flash Sale Bar */
        .flash-sale-bar {
            background: linear-gradient(90deg, #FF007F 0%, #CCFF00 50%, #00F0FF 100%);
            background-size: 200% 100%;
            animation: gradientShift 3s ease infinite;
            color: #0F0C20;
            font-weight: 700;
            padding: 0.75rem 1.5rem;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 1rem;
            box-shadow: 0 4px 20px rgba(255, 0, 127, 0.3);
        }

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

        .countdown-timer {
            display: flex;
            gap: 0.5rem;
            align-items: center;
        }

        .countdown-box {
            background: rgba(15, 12, 32, 0.9);
            color: var(--accent-cyan);
            padding: 0.5rem 0.75rem;
            border-radius: var(--radius-sm);
            font-size: 1.25rem;
            font-weight: 800;
            min-width: 48px;
            text-align: center;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.4);
        }

        /* Cards */
        .game-card {
            background: var(--card-bg);
            border: 1px solid rgba(0, 240, 255, 0.15);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition-base);
            backdrop-filter: blur(10px);
        }

        .game-card:hover {
            border-color: rgba(0, 240, 255, 0.5);
            box-shadow: var(--shadow-neon);
            transform: translateY(-5px);
        }

        .game-card-img {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/10;
        }

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

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

        .badge-hot {
            position: absolute;
            top: 0.75rem;
            left: 0.75rem;
            background: linear-gradient(135deg, #FF007F, #FF4500);
            color: white;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 0.25rem 0.75rem;
            border-radius: 20px;
            letter-spacing: 0.5px;
            box-shadow: 0 2px 10px rgba(255, 0, 127, 0.5);
        }

        .badge-new {
            position: absolute;
            top: 0.75rem;
            right: 0.75rem;
            background: var(--accent-lime);
            color: #0F0C20;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 0.25rem 0.75rem;
            border-radius: 20px;
            letter-spacing: 0.5px;
        }

        /* Steps */
        .step-item {
            display: flex;
            gap: 1.25rem;
            align-items: flex-start;
            padding: 1.5rem;
            background: rgba(11, 26, 48, 0.5);
            border-radius: var(--radius-md);
            border: 1px solid rgba(0, 240, 255, 0.1);
            transition: var(--transition-base);
        }

        .step-item:hover {
            border-color: rgba(0, 240, 255, 0.3);
            background: rgba(11, 26, 48, 0.7);
        }

        .step-number {
            background: linear-gradient(135deg, #CCFF00, #00F0FF);
            color: #0F0C20;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.25rem;
            flex-shrink: 0;
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.4);
        }

        /* FAQ */
        .faq-item {
            border: 1px solid rgba(0, 240, 255, 0.1);
            border-radius: var(--radius-md);
            background: rgba(11, 26, 48, 0.4);
            overflow: hidden;
            transition: var(--transition-base);
        }

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

        .faq-question {
            padding: 1.25rem 1.5rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-weight: 600;
            color: var(--text-white);
            transition: var(--transition-base);
            user-select: none;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 1.5rem;
            color: var(--text-silver);
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding-bottom: 1.5rem;
        }

        .faq-item.active .faq-toggle {
            transform: rotate(45deg);
            color: var(--accent-cyan);
        }

        .faq-toggle {
            transition: transform 0.3s ease;
            color: var(--text-silver);
            flex-shrink: 0;
            margin-left: 1rem;
        }

        /* Floating Action Button */
        .fab {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 50;
            background: rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(10px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), linear-gradient(135deg, #CCFF00, #00F0FF);
            background-origin: border-box;
            background-clip: padding-box, border-box;
            border-radius: 50%;
            width: 56px;
            height: 56px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 1.5rem;
            cursor: pointer;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.5);
            transition: var(--transition-base);
            animation: breathe 3s ease-in-out infinite;
            opacity: 0.7;
        }

        .fab:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 30px rgba(0, 240, 255, 0.8);
            animation: none;
        }

        .fab:active {
            transform: scale(0.95);
        }

        .fab .notification-dot {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            background: #FF007F;
            border-radius: 50%;
            border: 2px solid #0F0C20;
            animation: blink 1.5s ease-in-out infinite;
        }

        @keyframes breathe {
            0%, 100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-8px);
            }
        }

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

        /* Footer */
        .footer-link {
            transition: var(--transition-base);
        }

        .footer-link:hover {
            color: var(--accent-cyan);
            padding-left: 0.25rem;
        }

        /* Responsive */
        @media (max-width: 768px) {
            .desktop-nav-links {
                display: none !important;
            }

            .mobile-menu-btn {
                display: flex !important;
            }

            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }

            .flash-sale-bar {
                flex-direction: column;
                text-align: center;
            }

            .hero-title {
                font-size: 2rem !important;
                line-height: 1.2 !important;
            }

            .step-item {
                padding: 1.25rem;
                gap: 1rem;
            }

            .step-number {
                width: 40px;
                height: 40px;
                font-size: 1rem;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.6rem !important;
            }

            .countdown-box {
                font-size: 1rem;
                min-width: 36px;
                padding: 0.4rem 0.5rem;
            }

            .fab {
                width: 48px;
                height: 48px;
                font-size: 1.25rem;
                bottom: 4.5rem;
            }
        }

        @media (min-width: 769px) {
            .mobile-menu-btn {
                display: none !important;
            }
        }

        /* Focus styles */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
            border-radius: 4px;
        }

        /* Section divider */
        .section-divider {
            height: 1px;
            background: linear-gradient(90deg, transparent 0%, rgba(0, 240, 255, 0.3) 50%, transparent 100%);
            margin: 0 auto;
            max-width: 80%;
        }

/* roulang page: category2 */
:root {
            --primary-bg: #0F0C20;
            --secondary-bg: #0B1A30;
            --accent-lime: #CCFF00;
            --accent-cyan: #00F0FF;
            --text-white: #FFFFFF;
            --text-silver: #A6ACAF;
            --border-glow: rgba(0, 240, 255, 0.3);
            --shadow-neon: 0 0 15px rgba(0, 240, 255, 0.5);
            --radius-lg: 16px;
            --radius-md: 10px;
            --spacing-section: 5rem;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            background: var(--primary-bg);
            color: var(--text-white);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        
        /* Navigation Styles */
        .nav-link {
            color: var(--text-silver);
            text-decoration: none;
            font-size: 0.875rem;
            font-weight: 500;
            padding: 0.5rem 1rem;
            border-radius: 8px;
            transition: all 0.3s ease;
            position: relative;
        }
        
        .nav-link:hover {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.1);
        }
        
        .nav-link.active {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.15);
            font-weight: 600;
        }
        
        /* Button Styles */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            font-weight: 600;
            border-radius: 8px;
            transition: all 0.3s ease;
            cursor: pointer;
            text-decoration: none;
            border: none;
            outline: none;
        }
        
        .btn:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
        }
        
        .btn-primary {
            background: linear-gradient(135deg, #CCFF00 0%, #00F0FF 100%);
            color: #0F0C20;
            box-shadow: 0 4px 20px rgba(0, 240, 255, 0.4);
        }
        
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 25px rgba(0, 240, 255, 0.6);
        }
        
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 10px rgba(0, 240, 255, 0.3);
        }
        
        .btn-outline-light {
            background: transparent;
            color: var(--accent-cyan);
            border: 1px solid rgba(0, 240, 255, 0.4);
        }
        
        .btn-outline-light:hover {
            background: rgba(0, 240, 255, 0.1);
            border-color: var(--accent-cyan);
        }
        
        .btn-outline-light:active {
            background: rgba(0, 240, 255, 0.2);
        }
        
        .btn-lg {
            padding: 0.875rem 2rem;
            font-size: 1.125rem;
            border-radius: 12px;
        }
        
        .btn-md {
            padding: 0.625rem 1.5rem;
            font-size: 0.9375rem;
        }
        
        /* Hero Section */
        .hero-section {
            background: linear-gradient(180deg, #0F0C20 0%, #0B1A30 100%);
            padding: 4rem 0 5rem;
            position: relative;
            overflow: hidden;
        }
        
        .hero-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(0, 240, 255, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        
        .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);
            padding: 0.5rem 1rem;
            border-radius: 9999px;
            font-size: 0.875rem;
            font-weight: 600;
            margin-bottom: 1.5rem;
        }
        
        /* Card Styles */
        .content-card {
            background: linear-gradient(145deg, rgba(15, 12, 32, 0.9) 0%, rgba(11, 26, 48, 0.9) 100%);
            border: 1px solid rgba(0, 240, 255, 0.15);
            border-radius: var(--radius-lg);
            padding: 2rem;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }
        
        .content-card:hover {
            border-color: rgba(0, 240, 255, 0.4);
            box-shadow: var(--shadow-neon);
            transform: translateY(-4px);
        }
        
        .content-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, #CCFF00 0%, #00F0FF 100%);
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        
        .content-card:hover::before {
            opacity: 1;
        }
        
        /* Step Number */
        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, #CCFF00 0%, #00F0FF 100%);
            color: #0F0C20;
            font-weight: 800;
            font-size: 1.25rem;
            margin-bottom: 1rem;
        }
        
        /* List Styles */
        .feature-list {
            list-style: none;
            padding: 0;
        }
        
        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 0.75rem;
            margin-bottom: 0.75rem;
            color: var(--text-silver);
        }
        
        .feature-list li i {
            color: var(--accent-lime);
            margin-top: 0.25rem;
            flex-shrink: 0;
        }
        
        /* Progress Bar */
        .progress-track {
            width: 100%;
            height: 8px;
            background: rgba(0, 240, 255, 0.15);
            border-radius: 9999px;
            overflow: hidden;
            margin: 1rem 0;
        }
        
        .progress-fill {
            height: 100%;
            background: linear-gradient(90deg, #CCFF00 0%, #00F0FF 100%);
            border-radius: 9999px;
            transition: width 0.6s ease;
            animation: pulse-glow 2s ease-in-out infinite;
        }
        
        @keyframes pulse-glow {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.7; }
        }
        
        /* FAQ Accordion */
        .faq-item {
            border: 1px solid rgba(0, 240, 255, 0.15);
            border-radius: var(--radius-md);
            margin-bottom: 1rem;
            overflow: hidden;
            transition: all 0.3s ease;
        }
        
        .faq-item:hover {
            border-color: rgba(0, 240, 255, 0.3);
        }
        
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1.25rem 1.5rem;
            cursor: pointer;
            font-weight: 600;
            transition: all 0.3s ease;
            user-select: none;
        }
        
        .faq-question:hover {
            color: var(--accent-cyan);
        }
        
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 1.5rem;
            color: var(--text-silver);
        }
        
        .faq-item.active .faq-answer {
            max-height: 500px;
            padding: 0 1.5rem 1.25rem;
        }
        
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
            color: var(--accent-cyan);
        }
        
        .faq-question i {
            transition: transform 0.3s ease;
            color: var(--text-silver);
        }
        
        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, rgba(204, 255, 0, 0.05) 0%, rgba(0, 240, 255, 0.08) 100%);
            border: 1px solid rgba(0, 240, 255, 0.25);
            border-radius: var(--radius-lg);
            padding: 3rem 2rem;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        
        .cta-section::before {
            content: '';
            position: absolute;
            top: -100%;
            left: 50%;
            transform: translateX(-50%);
            width: 800px;
            height: 800px;
            background: radial-gradient(circle, rgba(0, 240, 255, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        
        /* FAB */
        .fab {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 9999px;
            background: rgba(15, 12, 32, 0.7);
            backdrop-filter: blur(8px);
            border: 2px solid transparent;
            background-clip: padding-box;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.5);
            opacity: 0.6;
            animation: fab-breathe 3s ease-in-out infinite;
            position: relative;
        }
        
        .fab::before {
            content: '';
            position: absolute;
            inset: -2px;
            border-radius: 9999px;
            background: linear-gradient(135deg, #CCFF00 0%, #00F0FF 100%);
            z-index: -1;
            opacity: 0.8;
        }
        
        .fab i {
            font-size: 1.5rem;
            color: var(--accent-cyan);
        }
        
        .fab:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 25px rgba(0, 240, 255, 0.7);
        }
        
        .fab:active {
            transform: scale(0.95);
        }
        
        @keyframes fab-breathe {
            0%, 100% { opacity: 0.6; }
            50% { opacity: 0.9; }
        }
        
        .fab-notification {
            position: absolute;
            top: 2px;
            right: 2px;
            width: 12px;
            height: 12px;
            background: #FF007F;
            border-radius: 50%;
            border: 2px solid #0F0C20;
            animation: blink-notification 1.5s ease-in-out infinite;
        }
        
        @keyframes blink-notification {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }
        
        /* Mobile Menu */
        .mobile-menu {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            background: #0F0C20;
            border-bottom: 1px solid rgba(0, 240, 255, 0.2);
            padding: 0.5rem 0;
            z-index: 50;
        }
        
        .mobile-menu.open {
            display: block;
        }
        
        .mobile-menu-btn {
            display: none;
        }
        
        /* Responsive */
        @media (max-width: 768px) {
            .desktop-nav-links {
                display: none !important;
            }
            
            .mobile-menu-btn {
                display: flex !important;
            }
            
            .hero-section {
                padding: 3rem 0 4rem;
            }
            
            :root {
                --spacing-section: 3.5rem;
            }
            
            .content-card {
                padding: 1.5rem;
            }
        }
        
        @media (max-width: 520px) {
            .container {
                padding: 0 1rem;
            }
            
            .btn-lg {
                width: 100%;
                justify-content: center;
            }
            
            .hero-section h1 {
                font-size: 1.75rem;
            }
        }
        
        /* Section Spacing */
        .section {
            padding: var(--spacing-section) 0;
        }
        
        .section-alt {
            background: var(--secondary-bg);
        }
        
        /* Divider */
        .divider {
            height: 1px;
            background: linear-gradient(90deg, transparent 0%, rgba(0, 240, 255, 0.3) 50%, transparent 100%);
            margin: 0;
        }
        
        /* Grid Layout */
        .grid-layout {
            display: grid;
            gap: 1.5rem;
        }
        
        @media (min-width: 768px) {
            .grid-cols-2-md {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .grid-cols-3-md {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        
        @media (min-width: 1024px) {
            .grid-cols-4-lg {
                grid-template-columns: repeat(4, 1fr);
            }
        }
        
        /* Text Styles */
        .text-gradient {
            background: linear-gradient(135deg, #CCFF00 0%, #00F0FF 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        
        .text-silver {
            color: var(--text-silver);
        }
        
        /* Image Container */
        .image-container {
            border-radius: var(--radius-lg);
            overflow: hidden;
            position: relative;
        }
        
        .image-container img {
            width: 100%;
            height: auto;
            display: block;
            transition: transform 0.3s ease;
        }
        
        .image-container:hover img {
            transform: scale(1.03);
        }
        
        /* Badge */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 0.25rem;
            padding: 0.25rem 0.75rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }
        
        .badge-hot {
            background: rgba(255, 0, 127, 0.2);
            color: #FF007F;
            border: 1px solid rgba(255, 0, 127, 0.4);
        }
        
        .badge-new {
            background: rgba(204, 255, 0, 0.15);
            color: #CCFF00;
            border: 1px solid rgba(204, 255, 0, 0.4);
        }
        
        /* Data Stats */
        .stat-item {
            text-align: center;
            padding: 1rem;
        }
        
        .stat-number {
            font-size: 2rem;
            font-weight: 800;
            background: linear-gradient(135deg, #CCFF00 0%, #00F0FF 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: block;
        }
        
        .stat-label {
            font-size: 0.875rem;
            color: var(--text-silver);
            margin-top: 0.25rem;
        }

/* roulang page: category3 */
:root {
            --bg-primary: #0F0C20;
            --bg-secondary: #0B1A30;
            --accent-lime: #CCFF00;
            --accent-cyan: #00F0FF;
            --text-white: #FFFFFF;
            --text-gray: #A6ACAF;
            --border-glow: rgba(0, 240, 255, 0.3);
            --border-lime: rgba(204, 255, 0, 0.4);
            --shadow-neon: 0 0 20px rgba(0, 240, 255, 0.25);
            --shadow-lime: 0 0 18px rgba(204, 255, 0, 0.2);
            --radius-lg: 20px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --spacing-section: 4rem;
            --font-sans: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-tap-highlight-color: transparent;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: all 0.3s ease;
        }

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

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

        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        @media (min-width: 768px) {
            .container {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        @media (min-width: 1024px) {
            .container {
                padding-left: 2.5rem;
                padding-right: 2.5rem;
            }
        }

        /* Navigation */
        header {
            position: sticky;
            top: 0;
            z-index: 40;
            background: rgba(15, 12, 32, 0.95);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0, 240, 255, 0.2);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
        }

        .nav-link {
            position: relative;
            padding: 0.5rem 1rem;
            border-radius: var(--radius-sm);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-gray);
            transition: all 0.3s ease;
            white-space: nowrap;
        }

        .nav-link:hover {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.08);
        }

        .nav-link.active {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.12);
            font-weight: 600;
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 2px;
            background: var(--accent-cyan);
            border-radius: 2px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            font-weight: 600;
            border-radius: var(--radius-sm);
            transition: all 0.3s ease;
            cursor: pointer;
            letter-spacing: 0.01em;
            line-height: 1.4;
            text-align: center;
        }

        .btn:focus-visible {
            outline: 2px solid var(--accent-cyan);
            outline-offset: 2px;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--accent-lime) 0%, var(--accent-cyan) 100%);
            color: #0B0B0B;
            box-shadow: 0 4px 14px rgba(0, 240, 255, 0.3);
            font-weight: 700;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(0, 240, 255, 0.5);
            background: linear-gradient(135deg, #d4ff33 0%, #33f5ff 100%);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(0, 240, 255, 0.3);
        }

        .btn-outline-light {
            border: 1px solid rgba(0, 240, 255, 0.5);
            color: var(--accent-cyan);
            background: transparent;
        }

        .btn-outline-light:hover {
            background: rgba(0, 240, 255, 0.1);
            border-color: var(--accent-cyan);
            box-shadow: 0 0 12px rgba(0, 240, 255, 0.25);
        }

        .mobile-menu {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            background: rgba(15, 12, 32, 0.98);
            border-bottom: 1px solid rgba(0, 240, 255, 0.2);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
            padding: 0.5rem 0;
            z-index: 50;
        }

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

        .mobile-menu-btn {
            display: none;
        }

        @media (max-width: 767px) {
            .desktop-nav-links {
                display: none !important;
            }
            .mobile-menu-btn {
                display: inline-flex;
            }
            header .hidden.md\\:flex {
                display: none !important;
            }
            header .mobile-menu-btn {
                display: inline-flex;
            }
        }

        @media (min-width: 768px) {
            .mobile-menu-btn {
                display: none !important;
            }
            .mobile-menu {
                display: none !important;
            }
        }

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

        .section-title {
            font-size: 1.75rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.25;
            margin-bottom: 1rem;
        }

        .section-subtitle {
            color: var(--text-gray);
            font-size: 1rem;
            max-width: 640px;
            line-height: 1.65;
        }

        .gradient-text {
            background: linear-gradient(135deg, var(--accent-lime) 0%, var(--accent-cyan) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        /* Badge */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 0.375rem;
            padding: 0.375rem 0.875rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            border: 1px solid rgba(0, 240, 255, 0.4);
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.08);
        }

        .badge-lime {
            border-color: rgba(204, 255, 0, 0.5);
            color: var(--accent-lime);
            background: rgba(204, 255, 0, 0.1);
        }

        /* Card */
        .card {
            background: rgba(11, 26, 48, 0.85);
            border: 1px solid rgba(0, 240, 255, 0.15);
            border-radius: var(--radius-md);
            transition: all 0.35s ease;
            overflow: hidden;
        }

        .card:hover {
            border-color: rgba(0, 240, 255, 0.45);
            box-shadow: 0 8px 32px rgba(0, 240, 255, 0.15);
            transform: translateY(-3px);
        }

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

        .card-body {
            padding: 1.25rem;
        }

        .card-title {
            font-size: 1.1rem;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 0.5rem;
        }

        .card-text {
            color: var(--text-gray);
            font-size: 0.875rem;
            line-height: 1.6;
        }

        /* List */
        .check-list {
            list-style: none;
            padding: 0;
        }

        .check-list li {
            position: relative;
            padding-left: 1.75rem;
            margin-bottom: 0.75rem;
            color: var(--text-gray);
            font-size: 0.95rem;
            line-height: 1.6;
        }

        .check-list li::before {
            content: '\f00c';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            left: 0;
            top: 0.1rem;
            color: var(--accent-cyan);
            font-size: 0.8rem;
        }

        /* FAQ */
        .faq-item {
            border-bottom: 1px solid rgba(0, 240, 255, 0.15);
            padding: 1.25rem 0;
        }

        .faq-question {
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            color: var(--text-white);
            transition: color 0.3s ease;
        }

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

        .faq-question .fa-chevron-down {
            transition: transform 0.3s ease;
            color: var(--accent-cyan);
            font-size: 0.875rem;
        }

        .faq-item.open .fa-chevron-down {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            color: var(--text-gray);
            font-size: 0.9rem;
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding-top: 0.75rem;
        }

        /* Hero specific */
        .hero-section {
            position: relative;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            padding: 4rem 0 3.5rem;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15, 12, 32, 0.75) 0%, rgba(15, 12, 32, 0.92) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
        }

        .hero-title {
            font-size: 2.25rem;
            font-weight: 900;
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: 1rem;
        }

        .hero-description {
            color: var(--text-gray);
            font-size: 1rem;
            max-width: 640px;
            line-height: 1.7;
            margin-bottom: 1.75rem;
        }

        .invite-card {
            background: rgba(11, 26, 48, 0.92);
            border: 1px solid rgba(0, 240, 255, 0.35);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
            max-width: 520px;
        }

        .progress-bar {
            width: 100%;
            height: 8px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 9999px;
            overflow: hidden;
            margin: 0.75rem 0 1rem;
        }

        .progress-fill {
            height: 100%;
            background: linear-gradient(90deg, var(--accent-lime) 0%, var(--accent-cyan) 100%);
            border-radius: 9999px;
            width: 65%;
            transition: width 1s ease;
        }

        .stat-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.5rem 1rem;
            background: rgba(0, 240, 255, 0.08);
            border: 1px solid rgba(0, 240, 255, 0.25);
            border-radius: var(--radius-sm);
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--accent-cyan);
        }

        /* Footer */
        footer {
            background: var(--bg-secondary);
            border-top: 1px solid rgba(0, 240, 255, 0.2);
            padding: 3rem 0 1.5rem;
            margin-top: 2rem;
        }

        .footer-link {
            color: var(--text-gray);
            font-size: 0.875rem;
            transition: color 0.3s ease;
            display: inline-block;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(0, 240, 255, 0.1);
            padding-top: 1.5rem;
            margin-top: 2rem;
            text-align: center;
            color: var(--text-gray);
            font-size: 0.8rem;
        }

        /* Responsive */
        @media (min-width: 768px) {
            .hero-title {
                font-size: 3rem;
            }
            .section-title {
                font-size: 2rem;
            }
            .hero-section {
                padding: 5rem 0 4rem;
            }
        }

        @media (min-width: 1024px) {
            .hero-title {
                font-size: 3.5rem;
            }
            .section-title {
                font-size: 2.25rem;
            }
        }

        @media (max-width: 520px) {
            :root {
                --spacing-section: 3rem;
            }
            .hero-title {
                font-size: 1.75rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .invite-card {
                padding: 1.25rem;
            }
            .card-image {
                height: 160px;
            }
        }

        /* Custom scrollbar */
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-primary);
        }
        ::-webkit-scrollbar-thumb {
            background: rgba(0, 240, 255, 0.3);
            border-radius: 4px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: rgba(0, 240, 255, 0.5);
        }