/* roulang page: index */
:root {
            --bg-deep: #0A0E17;
            --bg-card: #111826;
            --bg-section: #0D1525;
            --accent-gold: #FFD700;
            --accent-red: #FF4D6D;
            --accent-cyan: #00E5FF;
            --accent-green: #00E676;
            --text-white: #FFFFFF;
            --text-soft: #B8C4D9;
            --text-muted: #7A8BA3;
            --border-glow: rgba(0, 229, 255, 0.3);
            --border-gold: rgba(255, 215, 0, 0.4);
            --shadow-neon: 0 0 20px rgba(0, 229, 255, 0.2);
            --shadow-gold: 0 0 20px rgba(255, 215, 0, 0.25);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --spacing-section: 80px;
            --spacing-card: 24px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-body);
            background: var(--bg-deep);
            color: var(--text-white);
            line-height: 1.6;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--accent-cyan);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-gold);
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .section-badge {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 1.5px;
            text-transform: uppercase;
            background: rgba(0, 229, 255, 0.1);
            color: var(--accent-cyan);
            border: 1px solid rgba(0, 229, 255, 0.25);
            margin-bottom: 16px;
        }
        .section-title {
            font-size: clamp(1.8rem, 3.5vw, 2.6rem);
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }
        .section-desc {
            font-size: 1.05rem;
            color: var(--text-soft);
            max-width: 720px;
            line-height: 1.7;
            margin-bottom: 32px;
        }
        .text-gradient {
            background: linear-gradient(135deg, #FFD700 0%, #FFB300 50%, #FF8F00 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .text-gradient-cyan {
            background: linear-gradient(135deg, #00E5FF 0%, #00B8D4 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        /* Navbar */
        .navbar-custom {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(10, 14, 23, 0.95);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            padding: 12px 0;
            transition: var(--transition);
        }
        .navbar-custom.scrolled {
            background: rgba(10, 14, 23, 0.98);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
        }
        .navbar-brand-custom {
            font-size: 1.15rem;
            font-weight: 800;
            color: var(--text-white);
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: -0.01em;
        }
        .navbar-brand-custom:hover {
            color: var(--accent-gold);
        }
        .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, #FFD700, #FF8F00);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: #0A0E17;
            flex-shrink: 0;
        }
        .nav-link-custom {
            color: var(--text-soft) !important;
            font-weight: 600;
            font-size: 0.9rem;
            padding: 8px 16px !important;
            border-radius: 8px;
            transition: var(--transition);
            position: relative;
        }
        .nav-link-custom:hover {
            color: var(--text-white) !important;
            background: rgba(255, 255, 255, 0.06);
        }
        .nav-link-custom.active {
            color: var(--accent-gold) !important;
            background: rgba(255, 215, 0, 0.1);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-left: 16px;
        }
        .btn-login {
            padding: 8px 20px;
            border-radius: 8px;
            font-weight: 700;
            font-size: 0.85rem;
            color: var(--text-white);
            background: transparent;
            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, 229, 255, 0.05);
        }
        .btn-signup {
            padding: 8px 22px;
            border-radius: 8px;
            font-weight: 700;
            font-size: 0.85rem;
            color: #0A0E17;
            background: linear-gradient(135deg, #FFD700, #FFB300);
            border: none;
            transition: var(--transition);
            white-space: nowrap;
            box-shadow: 0 4px 15px rgba(255, 215, 0, 0.3);
        }
        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(255, 215, 0, 0.45);
            color: #0A0E17;
        }
        .navbar-toggler-custom {
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 6px 10px;
            border-radius: 8px;
            background: transparent;
        }
        .navbar-toggler-custom:focus {
            box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.3);
            outline: none;
        }
        .navbar-toggler-icon-custom {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text-white);
            position: relative;
            transition: var(--transition);
        }
        .navbar-toggler-icon-custom::before,
        .navbar-toggler-icon-custom::after {
            content: '';
            position: absolute;
            width: 24px;
            height: 2px;
            background: var(--text-white);
            left: 0;
            transition: var(--transition);
        }
        .navbar-toggler-icon-custom::before {
            top: -7px;
        }
        .navbar-toggler-icon-custom::after {
            top: 7px;
        }
        @media (max-width: 991px) {
            .navbar-collapse-custom {
                background: rgba(10, 14, 23, 0.98);
                border-radius: 16px;
                padding: 16px;
                margin-top: 12px;
                border: 1px solid rgba(255, 255, 255, 0.08);
            }
            .nav-actions {
                margin-left: 0;
                margin-top: 12px;
                flex-wrap: wrap;
            }
        }
        /* Hero */
        .hero-section {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            padding: 140px 0 80px;
            background: linear-gradient(180deg, #0A0E17 0%, #0D1525 40%, #111C33 100%);
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
            opacity: 0.15;
            z-index: 0;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(0, 229, 255, 0.08) 0%, transparent 60%),
                        radial-gradient(ellipse at 70% 50%, rgba(255, 215, 0, 0.06) 0%, transparent 60%);
            z-index: 0;
        }
        .hero-content {
            position: relative;
            z-index: 1;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 18px;
            border-radius: 50px;
            background: rgba(255, 77, 109, 0.15);
            border: 1px solid rgba(255, 77, 109, 0.35);
            color: #FF4D6D;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.5px;
            margin-bottom: 24px;
        }
        .hero-badge i {
            animation: pulse-badge 2s infinite;
        }
        @keyframes pulse-badge {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.4; }
        }
        .hero-title {
            font-size: clamp(2rem, 4.5vw, 3.5rem);
            font-weight: 900;
            line-height: 1.15;
            letter-spacing: -0.02em;
            margin-bottom: 20px;
        }
        .hero-desc {
            font-size: 1.1rem;
            color: var(--text-soft);
            max-width: 600px;
            line-height: 1.7;
            margin-bottom: 32px;
        }
        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 40px;
        }
        .btn-primary-custom {
            padding: 14px 32px;
            border-radius: 12px;
            font-weight: 800;
            font-size: 1rem;
            background: linear-gradient(135deg, #FFD700, #FFB300);
            color: #0A0E17;
            border: none;
            transition: var(--transition);
            box-shadow: 0 8px 30px rgba(255, 215, 0, 0.35);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .btn-primary-custom:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(255, 215, 0, 0.5);
            color: #0A0E17;
        }
        .btn-secondary-custom {
            padding: 14px 32px;
            border-radius: 12px;
            font-weight: 700;
            font-size: 1rem;
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-white);
            border: 1px solid rgba(255, 255, 255, 0.2);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            backdrop-filter: blur(10px);
        }
        .btn-secondary-custom:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            transform: translateY(-3px);
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
        }
        .hero-stat {
            display: flex;
            flex-direction: column;
        }
        .hero-stat-value {
            font-size: 1.8rem;
            font-weight: 900;
            color: var(--accent-gold);
            letter-spacing: -0.01em;
        }
        .hero-stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 4px;
        }
        .hero-visual {
            position: relative;
            z-index: 1;
        }
        .hero-visual-card {
            background: rgba(17, 24, 38, 0.85);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            padding: 32px;
            backdrop-filter: blur(15px);
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
        }
        .hero-visual-card .game-icon-row {
            display: flex;
            gap: 12px;
            margin-bottom: 24px;
            flex-wrap: wrap;
        }
        .game-icon-mini {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: var(--transition);
        }
        .game-icon-mini:hover {
            border-color: var(--accent-cyan);
            box-shadow: var(--shadow-neon);
            transform: translateY(-4px);
        }
        .hero-visual-card .progress-custom {
            height: 8px;
            border-radius: 4px;
            background: rgba(255, 255, 255, 0.08);
            overflow: hidden;
            margin: 16px 0;
        }
        .hero-visual-card .progress-bar-custom {
            height: 100%;
            background: linear-gradient(90deg, #FFD700, #FFB300);
            border-radius: 4px;
            transition: width 1.5s ease;
        }
        .hero-visual-card .reward-line {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 0.9rem;
        }
        .reward-line:last-child {
            border-bottom: none;
        }
        .reward-amount {
            font-weight: 800;
            color: var(--accent-green);
        }
        /* Countdown Bar */
        .countdown-bar {
            background: linear-gradient(90deg, #FF4D6D, #FF8F00);
            padding: 10px 0;
            text-align: center;
            font-weight: 700;
            font-size: 0.9rem;
            color: #0A0E17;
            letter-spacing: 0.5px;
        }
        .countdown-bar .countdown-timer {
            display: inline-flex;
            gap: 8px;
            align-items: center;
            background: rgba(10, 14, 23, 0.85);
            color: #FFD700;
            padding: 4px 16px;
            border-radius: 50px;
            margin-left: 12px;
        }
        /* Voucher Grid */
        .voucher-section {
            padding: var(--spacing-section) 0;
            background: var(--bg-deep);
        }
        .voucher-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }
        .voucher-card {
            background: var(--bg-card);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            padding: 24px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .voucher-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, #FFD700, #FFB300);
            opacity: 0;
            transition: var(--transition);
        }
        .voucher-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
            border-color: rgba(255, 215, 0, 0.3);
        }
        .voucher-card:hover::before {
            opacity: 1;
        }
        .voucher-card-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            margin-bottom: 16px;
            background: rgba(255, 215, 0, 0.1);
            color: var(--accent-gold);
            border: 1px solid rgba(255, 215, 0, 0.2);
        }
        .voucher-card-title {
            font-size: 1.2rem;
            font-weight: 800;
            margin-bottom: 8px;
        }
        .voucher-card-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 16px;
        }
        .voucher-card-value {
            font-size: 1.6rem;
            font-weight: 900;
            color: var(--accent-gold);
        }
        /* Usage Rules */
        .rules-section {
            padding: var(--spacing-section) 0;
            background: var(--bg-section);
        }
        .rules-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .rules-list li {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 16px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 0.95rem;
            color: var(--text-soft);
            line-height: 1.6;
        }
        .rules-list li:last-child {
            border-bottom: none;
        }
        .rules-list .rule-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(0, 229, 255, 0.1);
            color: var(--accent-cyan);
            flex-shrink: 0;
            font-size: 1rem;
            border: 1px solid rgba(0, 229, 255, 0.2);
        }
        /* Info Section */
        .info-section {
            padding: var(--spacing-section) 0;
            background: var(--bg-deep);
        }
        .info-list {
            display: grid;
            grid-template-columns: 1fr;
            gap: 16px;
        }
        .info-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 20px;
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: var(--transition);
        }
        .info-item:hover {
            border-color: rgba(0, 229, 255, 0.25);
            box-shadow: var(--shadow-neon);
        }
        .info-item-thumb {
            width: 80px;
            height: 60px;
            border-radius: 8px;
            overflow: hidden;
            flex-shrink: 0;
            background: rgba(255, 255, 255, 0.05);
        }
        .info-item-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .info-item-content h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 4px;
            color: var(--text-white);
        }
        .info-item-content h4 a {
            color: var(--text-white);
        }
        .info-item-content h4 a:hover {
            color: var(--accent-cyan);
        }
        .info-item-content .info-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            display: flex;
            gap: 16px;
        }
        .info-item-content .info-excerpt {
            font-size: 0.85rem;
            color: var(--text-soft);
            margin-top: 6px;
            line-height: 1.5;
        }
        /* CTA Section */
        .cta-section {
            padding: var(--spacing-section) 0;
            background: linear-gradient(180deg, var(--bg-deep) 0%, #111C33 100%);
            text-align: center;
        }
        .cta-box {
            background: linear-gradient(135deg, rgba(255, 215, 0, 0.08), rgba(255, 143, 0, 0.05));
            border: 1px solid rgba(255, 215, 0, 0.2);
            border-radius: var(--radius-lg);
            padding: 56px 40px;
            position: relative;
            overflow: hidden;
        }
        .cta-box::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(255, 215, 0, 0.05) 0%, transparent 60%);
            animation: rotate-glow 10s linear infinite;
        }
        @keyframes rotate-glow {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }
        .cta-box > * {
            position: relative;
            z-index: 1;
        }
        .cta-title {
            font-size: clamp(1.8rem, 3vw, 2.5rem);
            font-weight: 900;
            margin-bottom: 16px;
        }
        .cta-desc {
            font-size: 1.05rem;
            color: var(--text-soft);
            max-width: 600px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }
        /* FAQ */
        .faq-section {
            padding: var(--spacing-section) 0;
            background: var(--bg-section);
        }
        .accordion-custom .accordion-item {
            background: var(--bg-card);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            overflow: hidden;
        }
        .accordion-custom .accordion-button {
            background: transparent;
            color: var(--text-white);
            font-weight: 700;
            font-size: 0.95rem;
            padding: 18px 24px;
            box-shadow: none;
            border: none;
            transition: var(--transition);
        }
        .accordion-custom .accordion-button:not(.collapsed) {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.05);
        }
        .accordion-custom .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.2);
            outline: none;
        }
        .accordion-custom .accordion-body {
            background: transparent;
            color: var(--text-soft);
            font-size: 0.9rem;
            line-height: 1.7;
            padding: 0 24px 20px;
        }
        .accordion-custom .accordion-button::after {
            filter: invert(1) brightness(2);
        }
        /* Floating Conversion Bar */
        .floating-cta {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 900;
            background: rgba(10, 14, 23, 0.95);
            backdrop-filter: blur(20px);
            border-top: 1px solid rgba(255, 215, 0, 0.25);
            padding: 12px 0;
            transform: translateY(100%);
            transition: transform 0.4s ease;
        }
        .floating-cta.show {
            transform: translateY(0);
        }
        .floating-cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }
        .floating-cta-text {
            font-size: 0.9rem;
            color: var(--text-soft);
            font-weight: 600;
        }
        .floating-cta-text strong {
            color: var(--accent-gold);
        }
        /* FAB */
        .fab-custom {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 950;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(10, 14, 23, 0.85);
            backdrop-filter: blur(15px);
            border: 2px solid var(--accent-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--accent-gold);
            box-shadow: 0 0 20px rgba(255, 215, 0, 0.35), 0 4px 15px rgba(0, 0, 0, 0.4);
            cursor: pointer;
            transition: var(--transition);
            opacity: 0.7;
            animation: fab-float 3s ease-in-out infinite;
        }
        .fab-custom:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 35px rgba(255, 215, 0, 0.55), 0 8px 25px rgba(0, 0, 0, 0.5);
        }
        .fab-custom .notification-dot {
            position: absolute;
            top: 4px;
            right: 4px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: #FF4D6D;
            border: 2px solid #0A0E17;
            animation: blink-dot 1.5s infinite;
        }
        @keyframes fab-float {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-8px); }
        }
        @keyframes blink-dot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }
        /* Footer */
        .footer-custom {
            background: #080B12;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 60px 0 30px;
        }
        .footer-brand {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
        }
        .footer-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
            max-width: 360px;
            line-height: 1.6;
            margin-bottom: 24px;
        }
        .footer-heading {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-white);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 16px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent-gold);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 24px;
            margin-top: 40px;
            text-align: center;
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .trust-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 20px;
        }
        .trust-badge {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 14px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.75rem;
            color: var(--text-soft);
            font-weight: 600;
        }
        .trust-badge i {
            color: var(--accent-green);
        }
        /* Responsive */
        @media (max-width: 991px) {
            :root {
                --spacing-section: 60px;
            }
            .hero-section {
                padding: 120px 0 60px;
                min-height: auto;
            }
            .hero-visual {
                margin-top: 40px;
            }
            .hero-stats {
                gap: 20px;
            }
        }
        @media (max-width: 768px) {
            .hero-title {
                font-size: 1.9rem;
            }
            .hero-desc {
                font-size: 1rem;
            }
            .btn-primary-custom, .btn-secondary-custom {
                padding: 12px 24px;
                font-size: 0.9rem;
            }
            .voucher-grid {
                grid-template-columns: 1fr;
            }
            .floating-cta-inner {
                flex-direction: column;
                align-items: stretch;
                text-align: center;
            }
            .fab-custom {
                left: 12px;
                bottom: 80px;
                width: 50px;
                height: 50px;
                font-size: 1.3rem;
            }
        }
        @media (max-width: 520px) {
            :root {
                --spacing-section: 40px;
            }
            .container {
                padding: 0 16px;
            }
            .hero-section {
                padding: 100px 0 40px;
            }
            .hero-title {
                font-size: 1.6rem;
            }
            .hero-cta-group {
                flex-direction: column;
                gap: 10px;
            }
            .btn-primary-custom, .btn-secondary-custom {
                width: 100%;
                justify-content: center;
            }
            .hero-stats {
                flex-direction: column;
                gap: 12px;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .info-item {
                flex-direction: column;
                padding: 16px;
            }
            .info-item-thumb {
                width: 100%;
                height: 140px;
            }
            .cta-box {
                padding: 32px 20px;
            }
        }
        /* Extra Components */
        .highlight-card {
            background: var(--bg-card);
            border: 1px solid rgba(255, 215, 0, 0.2);
            border-radius: var(--radius-md);
            padding: 28px;
            transition: var(--transition);
            height: 100%;
        }
        .highlight-card:hover {
            border-color: rgba(255, 215, 0, 0.5);
            box-shadow: var(--shadow-gold);
            transform: translateY(-4px);
        }
        .highlight-card .icon-lg {
            width: 60px;
            height: 60px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            margin-bottom: 20px;
            background: rgba(255, 215, 0, 0.1);
            color: var(--accent-gold);
            border: 1px solid rgba(255, 215, 0, 0.2);
        }
        .highlight-card h3 {
            font-size: 1.2rem;
            font-weight: 800;
            margin-bottom: 10px;
        }
        .highlight-card p {
            font-size: 0.9rem;
            color: var(--text-soft);
            line-height: 1.6;
            margin-bottom: 0;
        }
        .benefit-icon-row {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 20px;
        }
        .benefit-pill {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 10px 18px;
            border-radius: 50px;
            background: rgba(0, 229, 255, 0.06);
            border: 1px solid rgba(0, 229, 255, 0.2);
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-soft);
            transition: var(--transition);
        }
        .benefit-pill:hover {
            background: rgba(0, 229, 255, 0.12);
            border-color: rgba(0, 229, 255, 0.4);
            color: var(--accent-cyan);
        }
        .benefit-pill i {
            color: var(--accent-cyan);
            font-size: 0.9rem;
        }

/* roulang page: article */
:root {
            --bg-primary: #0B0B0B;
            --bg-secondary: #161616;
            --bg-card: #1A1A1A;
            --bg-elevated: #222222;
            --accent-primary: #FF4500;
            --accent-secondary: #FF0000;
            --accent-glow: rgba(255, 69, 0, 0.4);
            --text-primary: #FFFFFF;
            --text-secondary: #CCCCCC;
            --text-muted: #999999;
            --border-color: #2A2A2A;
            --border-accent: rgba(255, 69, 0, 0.5);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 20px rgba(255, 69, 0, 0.3);
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 1.5rem;
            --spacing-lg: 2.5rem;
            --spacing-xl: 4rem;
            --font-primary: 'Inter', 'Segoe UI', -apple-system, BlinkMacSystemFont, 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;
        }

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

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

        a:hover {
            color: var(--accent-secondary);
        }

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

        button {
            cursor: pointer;
            font-family: inherit;
        }

        .container {
            max-width: 1200px;
            padding-left: var(--spacing-md);
            padding-right: var(--spacing-md);
        }

        /* Header & Navigation */
        .navbar-custom {
            background: rgba(11, 11, 11, 0.95);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            padding: 0.75rem 0;
            position: sticky;
            top: 0;
            z-index: 1050;
            transition: box-shadow var(--transition-base);
        }

        .navbar-custom.scrolled {
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
        }

        .navbar-brand-custom {
            display: inline-flex;
            align-items: center;
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--text-primary);
            text-decoration: none;
            letter-spacing: -0.02em;
            transition: color var(--transition-fast);
        }

        .navbar-brand-custom:hover {
            color: var(--accent-primary);
        }

        .brand-icon {
            display: inline-flex;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, #FF4500, #FF0000);
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: #FFFFFF;
            margin-right: 10px;
            flex-shrink: 0;
        }

        .nav-link-custom {
            display: inline-block;
            padding: 0.5rem 1rem;
            color: var(--text-secondary);
            text-decoration: none;
            font-weight: 500;
            font-size: 0.95rem;
            border-radius: 8px;
            transition: all var(--transition-fast);
            position: relative;
        }

        .nav-link-custom:hover {
            color: var(--text-primary);
            background: rgba(255, 69, 0, 0.1);
        }

        .nav-link-custom.active {
            color: var(--accent-primary);
            background: rgba(255, 69, 0, 0.15);
        }

        .nav-link-custom.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--accent-primary);
            border-radius: 2px;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-left: 1rem;
        }

        .btn-login {
            background: transparent;
            border: none;
            color: var(--text-secondary);
            padding: 0.5rem 1rem;
            font-weight: 600;
            font-size: 0.95rem;
            transition: color var(--transition-fast);
        }

        .btn-login:hover {
            color: var(--text-primary);
        }

        .btn-signup {
            background: linear-gradient(135deg, #FF4500, #FF0000);
            border: none;
            color: #FFFFFF;
            padding: 0.55rem 1.4rem;
            border-radius: 10px;
            font-weight: 700;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 12px rgba(255, 69, 0, 0.3);
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255, 69, 0, 0.5);
            color: #FFFFFF;
        }

        .navbar-toggler-custom {
            background: var(--bg-elevated);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 0.5rem 0.75rem;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .navbar-toggler-icon-custom {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text-primary);
            position: relative;
            border-radius: 2px;
        }

        .navbar-toggler-icon-custom::before,
        .navbar-toggler-icon-custom::after {
            content: '';
            position: absolute;
            left: 0;
            width: 24px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: transform var(--transition-base);
        }

        .navbar-toggler-icon-custom::before {
            top: -7px;
        }

        .navbar-toggler-icon-custom::after {
            top: 7px;
        }

        .navbar-toggler-custom[aria-expanded="true"] .navbar-toggler-icon-custom {
            background: transparent;
        }

        .navbar-toggler-custom[aria-expanded="true"] .navbar-toggler-icon-custom::before {
            top: 0;
            transform: rotate(45deg);
        }

        .navbar-toggler-custom[aria-expanded="true"] .navbar-toggler-icon-custom::after {
            top: 0;
            transform: rotate(-45deg);
        }

        /* Article Header */
        .article-header {
            padding: var(--spacing-lg) 0 var(--spacing-md);
            border-bottom: 1px solid var(--border-color);
            background: linear-gradient(180deg, #0B0B0B 0%, #161616 100%);
        }

        .article-breadcrumb {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-wrap: wrap;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: var(--spacing-sm);
        }

        .article-breadcrumb a {
            color: var(--text-muted);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        .article-breadcrumb a:hover {
            color: var(--accent-primary);
        }

        .article-breadcrumb .separator {
            color: var(--border-color);
        }

        .article-category-badge {
            display: inline-flex;
            align-items: center;
            padding: 0.35rem 1rem;
            background: rgba(255, 69, 0, 0.15);
            color: var(--accent-primary);
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            text-decoration: none;
            margin-bottom: var(--spacing-sm);
            transition: all var(--transition-fast);
            border: 1px solid rgba(255, 69, 0, 0.3);
        }

        .article-category-badge:hover {
            background: rgba(255, 69, 0, 0.25);
            color: var(--accent-primary);
        }

        .article-header h1 {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.3;
            margin-bottom: var(--spacing-sm);
            color: var(--text-primary);
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            flex-wrap: wrap;
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        .article-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }

        .article-meta .meta-item i {
            color: var(--accent-primary);
            font-size: 0.85rem;
        }

        /* Article Content */
        .article-content-section {
            padding: var(--spacing-lg) 0;
        }

        .article-main {
            max-width: 800px;
        }

        .article-featured-image {
            width: 100%;
            border-radius: var(--radius-lg);
            margin-bottom: var(--spacing-lg);
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-color);
            overflow: hidden;
        }

        .article-featured-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }

        .article-body {
            font-size: 1.05rem;
            line-height: 1.7;
            color: var(--text-secondary);
        }

        .article-body h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-top: var(--spacing-lg);
            margin-bottom: var(--spacing-sm);
            letter-spacing: -0.01em;
        }

        .article-body h3 {
            font-size: 1.3rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-top: var(--spacing-md);
            margin-bottom: var(--spacing-xs);
        }

        .article-body p {
            margin-bottom: var(--spacing-sm);
        }

        .article-body ul,
        .article-body ol {
            margin-bottom: var(--spacing-sm);
            padding-left: 1.5rem;
        }

        .article-body li {
            margin-bottom: 0.5rem;
        }

        .article-body blockquote {
            border-left: 4px solid var(--accent-primary);
            padding: var(--spacing-sm) var(--spacing-md);
            background: rgba(255, 69, 0, 0.05);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: var(--spacing-md) 0;
            font-style: italic;
            color: var(--text-primary);
        }

        .article-body img {
            border-radius: var(--radius-md);
            margin: var(--spacing-md) 0;
            box-shadow: var(--shadow-md);
        }

        .article-body a {
            color: var(--accent-primary);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .article-body a:hover {
            color: var(--accent-secondary);
        }

        /* Article Sidebar */
        .article-sidebar {
            position: sticky;
            top: 100px;
        }

        .sidebar-widget {
            background: var(--bg-secondary);
            border-radius: var(--radius-lg);
            padding: var(--spacing-md);
            border: 1px solid var(--border-color);
            margin-bottom: var(--spacing-md);
        }

        .sidebar-widget h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: var(--spacing-sm);
            padding-bottom: var(--spacing-xs);
            border-bottom: 2px solid var(--border-color);
        }

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

        .sidebar-widget ul li {
            margin-bottom: 0.75rem;
        }

        .sidebar-widget ul li a {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            color: var(--text-secondary);
            text-decoration: none;
            transition: all var(--transition-fast);
            padding: 0.5rem;
            border-radius: var(--radius-sm);
        }

        .sidebar-widget ul li a:hover {
            background: rgba(255, 69, 0, 0.1);
            color: var(--text-primary);
            transform: translateX(4px);
        }

        .sidebar-widget ul li a .widget-icon {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: rgba(255, 69, 0, 0.15);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-primary);
            flex-shrink: 0;
            font-size: 0.85rem;
        }

        .sidebar-widget .widget-text {
            font-size: 0.9rem;
            font-weight: 500;
        }

        /* CTA Section */
        .article-cta-section {
            background: linear-gradient(135deg, #161616 0%, #1A1A1A 50%, #0B0B0B 100%);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            padding: var(--spacing-lg) 0;
            margin-top: var(--spacing-lg);
        }

        .cta-card {
            background: linear-gradient(135deg, #1A1A1A, #222222);
            border: 1px solid var(--border-accent);
            border-radius: var(--radius-xl);
            padding: var(--spacing-lg);
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-glow);
        }

        .cta-card::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(255, 69, 0, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

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

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

        .btn-cta-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, #FF4500, #FF0000);
            color: #FFFFFF;
            border: none;
            padding: 0.8rem 2rem;
            border-radius: 12px;
            font-weight: 700;
            font-size: 1.05rem;
            text-decoration: none;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 16px rgba(255, 69, 0, 0.4);
            position: relative;
            z-index: 1;
        }

        .btn-cta-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 69, 0, 0.6);
            color: #FFFFFF;
        }

        /* Not Found */
        .not-found-card {
            text-align: center;
            padding: var(--spacing-xl) var(--spacing-md);
        }

        .not-found-card .not-found-icon {
            font-size: 4rem;
            color: var(--accent-primary);
            margin-bottom: var(--spacing-md);
        }

        .not-found-card h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: var(--spacing-sm);
        }

        .not-found-card p {
            color: var(--text-muted);
            font-size: 1.05rem;
            margin-bottom: var(--spacing-md);
        }

        /* Footer */
        .footer-custom {
            background: #0A0A0A;
            border-top: 1px solid var(--border-color);
            padding: var(--spacing-xl) 0 var(--spacing-md);
            color: var(--text-secondary);
        }

        .footer-brand {
            display: flex;
            align-items: center;
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--text-primary);
            margin-bottom: var(--spacing-sm);
        }

        .footer-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: var(--spacing-md);
        }

        .trust-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }

        .trust-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.4rem 0.8rem;
            background: rgba(255, 69, 0, 0.1);
            border: 1px solid rgba(255, 69, 0, 0.3);
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 500;
            color: var(--text-secondary);
        }

        .trust-badge i {
            color: var(--accent-primary);
            font-size: 0.75rem;
        }

        .footer-heading {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: var(--spacing-sm);
        }

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

        .footer-links li {
            margin-bottom: 0.6rem;
        }

        .footer-links a {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
        }

        .footer-links a:hover {
            color: var(--accent-primary);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: var(--spacing-md);
            margin-top: var(--spacing-lg);
            text-align: center;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .footer-bottom a {
            color: var(--text-muted);
            text-decoration: none;
        }

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

        /* FAB */
        .fab-custom {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 1060;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: rgba(11, 11, 11, 0.8);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-clip: padding-box;
            box-shadow: 0 0 15px rgba(255, 69, 0, 0.5);
            cursor: pointer;
            transition: all var(--transition-base);
            opacity: 0.6;
            position: fixed;
        }

        .fab-custom::before {
            content: '';
            position: absolute;
            inset: -2px;
            border-radius: 18px;
            background: linear-gradient(135deg, #FF4500, #FF0000, #FF4500);
            z-index: -1;
            opacity: 0.8;
            animation: fab-border-flow 3s ease infinite;
        }

        .fab-custom:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 25px rgba(255, 69, 0, 0.7);
        }

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

        .fab-custom .fab-icon {
            font-size: 1.5rem;
            color: #FFFFFF;
            animation: fab-icon-flicker 2s ease infinite;
        }

        .fab-custom .fab-notification {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 14px;
            height: 14px;
            background: #FF0000;
            border-radius: 50%;
            border: 2px solid #0B0B0B;
            animation: fab-notification-blink 1.5s ease infinite;
        }

        @keyframes fab-border-flow {
            0%, 100% {
                background: linear-gradient(135deg, #FF4500, #FF0000, #FF4500);
            }
            50% {
                background: linear-gradient(135deg, #FF0000, #FF4500, #FF0000);
            }
        }

        @keyframes fab-icon-flicker {
            0%, 100% {
                opacity: 1;
            }
            50% {
                opacity: 0.7;
            }
        }

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

        /* Responsive */
        @media (max-width: 1024px) {
            .article-header h1 {
                font-size: 1.8rem;
            }
            
            .container {
                padding-left: var(--spacing-sm);
                padding-right: var(--spacing-sm);
            }
        }

        @media (max-width: 768px) {
            .navbar-custom {
                padding: 0.5rem 0;
            }
            
            .navbar-collapse-custom {
                background: rgba(11, 11, 11, 0.98);
                border-radius: var(--radius-md);
                padding: var(--spacing-sm);
                margin-top: var(--spacing-xs);
                border: 1px solid var(--border-color);
            }
            
            .nav-actions {
                margin-left: 0;
                margin-top: var(--spacing-sm);
                padding-top: var(--spacing-sm);
                border-top: 1px solid var(--border-color);
                justify-content: space-between;
                width: 100%;
            }
            
            .article-header {
                padding: var(--spacing-md) 0;
            }
            
            .article-header h1 {
                font-size: 1.5rem;
            }
            
            .article-sidebar {
                position: static;
                margin-top: var(--spacing-lg);
            }
            
            .article-body {
                font-size: 1rem;
            }
            
            .article-body h2 {
                font-size: 1.4rem;
            }
            
            .article-body h3 {
                font-size: 1.15rem;
            }
            
            .cta-card h2 {
                font-size: 1.5rem;
            }
            
            .fab-custom {
                width: 48px;
                height: 48px;
                border-radius: 14px;
                left: 12px;
                bottom: 80px;
            }
            
            .fab-custom .fab-icon {
                font-size: 1.2rem;
            }
        }

        @media (max-width: 520px) {
            .navbar-brand-custom {
                font-size: 1rem;
            }
            
            .brand-icon {
                width: 30px;
                height: 30px;
                font-size: 0.9rem;
                border-radius: 8px;
                margin-right: 8px;
            }
            
            .article-header h1 {
                font-size: 1.3rem;
                line-height: 1.4;
            }
            
            .article-meta {
                font-size: 0.8rem;
                gap: var(--spacing-xs);
            }
            
            .article-body {
                font-size: 0.95rem;
                line-height: 1.6;
            }
            
            .article-body h2 {
                font-size: 1.25rem;
            }
            
            .article-body h3 {
                font-size: 1.05rem;
            }
            
            .cta-card {
                padding: var(--spacing-md);
            }
            
            .cta-card h2 {
                font-size: 1.3rem;
            }
            
            .btn-cta-primary {
                width: 100%;
                justify-content: center;
                font-size: 0.95rem;
                padding: 0.7rem 1.5rem;
            }
            
            .footer-custom {
                padding: var(--spacing-lg) 0 var(--spacing-sm);
            }
            
            .trust-badges {
                flex-direction: column;
                align-items: flex-start;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #0A0E17;
            --bg-secondary: #111827;
            --bg-card: #1A2235;
            --accent-gold: #FFD700;
            --accent-amber: #FF8F00;
            --accent-coral: #FF5E62;
            --accent-mint: #D1F2EB;
            --text-white: #FFFFFF;
            --text-muted: #A6ACAF;
            --text-soft: #CBD5E1;
            --border-gold: rgba(255, 215, 0, 0.45);
            --border-soft: rgba(255, 255, 255, 0.08);
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-gold: 0 8px 30px rgba(255, 215, 0, 0.12);
            --shadow-card: 0 12px 28px rgba(0, 0, 0, 0.35);
            --transition: all 0.25s 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: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            line-height: 1.65;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: var(--accent-gold);
            transition: var(--transition);
        }
        a:hover {
            color: #FFE55C;
        }
        img {
            max-width: 100%;
            display: block;
        }
        .container {
            max-width: 1240px;
            padding-left: 24px;
            padding-right: 24px;
        }
        /* Header & Nav */
        .header-custom {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(10, 14, 23, 0.96);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-soft);
            box-shadow: 0 4px 20px rgba(0,0,0,0.4);
        }
        .navbar-custom {
            padding: 12px 0;
            background: transparent;
        }
        .navbar-brand-custom {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--text-white);
            letter-spacing: -0.01em;
            text-decoration: none;
        }
        .navbar-brand-custom:hover {
            color: var(--accent-gold);
        }
        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: linear-gradient(135deg, #FFD700, #FF8F00);
            color: #0A0E17;
            font-size: 1.1rem;
        }
        .nav-link-custom {
            display: inline-block;
            padding: 8px 16px;
            margin: 0 4px;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-muted);
            border-radius: 30px;
            text-decoration: none;
            transition: var(--transition);
        }
        .nav-link-custom:hover {
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.06);
        }
        .nav-link-custom.active {
            color: #0A0E17;
            background: linear-gradient(135deg, #FFD700, #FFB800);
            box-shadow: 0 4px 14px rgba(255, 215, 0, 0.35);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-left: 18px;
        }
        .btn-login {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: var(--text-white);
            padding: 8px 18px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: var(--transition);
            white-space: nowrap;
        }
        .btn-login:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
        }
        .btn-signup {
            background: linear-gradient(135deg, #FFD700, #FF8F00);
            border: none;
            color: #0A0E17;
            padding: 8px 20px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 0.9rem;
            box-shadow: 0 6px 18px rgba(255, 143, 0, 0.4);
            transition: var(--transition);
            white-space: nowrap;
        }
        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(255, 143, 0, 0.55);
            color: #0A0E17;
        }
        .navbar-toggler-custom {
            background: transparent;
            border: 1px solid rgba(255,255,255,0.25);
            border-radius: 10px;
            padding: 6px 10px;
            color: white;
        }
        .navbar-toggler-icon-custom {
            display: inline-block;
            width: 24px;
            height: 2px;
            background: white;
            position: relative;
            transition: var(--transition);
        }
        .navbar-toggler-icon-custom::before,
        .navbar-toggler-icon-custom::after {
            content: '';
            position: absolute;
            left: 0;
            width: 24px;
            height: 2px;
            background: white;
            transition: var(--transition);
        }
        .navbar-toggler-icon-custom::before { top: -7px; }
        .navbar-toggler-icon-custom::after { top: 7px; }
        .navbar-collapse-custom {
            flex-grow: 0;
        }
        @media (max-width: 991px) {
            .navbar-collapse-custom {
                background: #0F1523;
                border-radius: 16px;
                padding: 16px;
                margin-top: 12px;
                border: 1px solid var(--border-soft);
            }
            .nav-link-custom {
                display: block;
                margin: 6px 0;
            }
            .nav-actions {
                margin: 12px 0 0;
                flex-wrap: wrap;
            }
            .btn-login, .btn-signup {
                flex: 1;
                text-align: center;
            }
        }
        /* Hero Bento */
        .hero-bento {
            padding: 56px 0 32px;
            background: radial-gradient(circle at 10% 20%, rgba(255,215,0,0.06), transparent 40%),
                        radial-gradient(circle at 90% 80%, rgba(255,143,0,0.08), transparent 45%);
        }
        .bento-main {
            background: linear-gradient(145deg, #1A2235, #0F1523);
            border-radius: var(--radius-xl);
            padding: 40px 36px;
            border: 1px solid var(--border-gold);
            box-shadow: var(--shadow-gold);
            position: relative;
            overflow: hidden;
            min-height: 340px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .bento-main::after {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(255,215,0,0.18), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-tag {
            display: inline-block;
            background: rgba(255, 215, 0, 0.15);
            color: var(--accent-gold);
            font-weight: 700;
            font-size: 0.8rem;
            letter-spacing: 0.08em;
            padding: 6px 16px;
            border-radius: 30px;
            border: 1px solid rgba(255, 215, 0, 0.3);
            margin-bottom: 20px;
            text-transform: uppercase;
        }
        .hero-title {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: 18px;
            max-width: 750px;
        }
        .hero-title .highlight {
            background: linear-gradient(135deg, #FFD700, #FF8F00);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        .hero-sub {
            font-size: 1.1rem;
            color: var(--text-soft);
            max-width: 650px;
            margin-bottom: 28px;
        }
        .hero-stats {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
        }
        .hero-stat {
            display: flex;
            flex-direction: column;
        }
        .hero-stat-value {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent-gold);
        }
        .hero-stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .bento-small {
            background: #131A29;
            border-radius: var(--radius-lg);
            padding: 24px 22px;
            border: 1px solid var(--border-soft);
            box-shadow: var(--shadow-card);
            min-height: 160px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            transition: var(--transition);
        }
        .bento-small:hover {
            border-color: rgba(255,215,0,0.4);
            transform: translateY(-4px);
        }
        .bento-small .icon-circle {
            width: 44px;
            height: 44px;
            border-radius: 14px;
            background: rgba(255,215,0,0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-gold);
            font-size: 1.2rem;
            margin-bottom: 14px;
        }
        .bento-small h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .bento-small p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }
        .cta-strip {
            background: linear-gradient(135deg, #FFD700, #FF8F00);
            border-radius: 20px;
            padding: 18px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            margin-top: 20px;
            color: #0A0E17;
            font-weight: 700;
            box-shadow: 0 12px 30px rgba(255,143,0,0.3);
        }
        .cta-strip .btn-dark-gold {
            background: #0A0E17;
            color: #FFD700;
            padding: 10px 22px;
            border-radius: 30px;
            font-weight: 700;
            border: none;
            transition: var(--transition);
        }
        .cta-strip .btn-dark-gold:hover {
            background: #1A2235;
            color: #FFE55C;
        }
        /* Section general */
        .section-pad {
            padding: 64px 0;
        }
        .section-label {
            display: inline-block;
            color: var(--accent-gold);
            font-weight: 700;
            font-size: 0.8rem;
            letter-spacing: 0.1em;
            text-transform: uppercase;
            margin-bottom: 12px;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.01em;
            margin-bottom: 16px;
        }
        .section-desc {
            color: var(--text-muted);
            font-size: 1rem;
            max-width: 720px;
            margin-bottom: 40px;
        }
        /* Collection flow */
        .collection-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-soft);
            overflow: hidden;
            transition: var(--transition);
            margin-bottom: 24px;
            box-shadow: var(--shadow-card);
        }
        .collection-card:hover {
            border-color: rgba(255,215,0,0.5);
            transform: translateY(-5px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.5);
        }
        .collection-img {
            height: 200px;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .collection-img .badge-hot {
            position: absolute;
            top: 16px;
            left: 16px;
            background: #D32F2F;
            color: white;
            padding: 4px 12px;
            border-radius: 30px;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.05em;
        }
        .collection-body {
            padding: 22px 22px 26px;
        }
        .collection-body h3 {
            font-size: 1.35rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .collection-body p {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 18px;
        }
        .collection-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.85rem;
            color: var(--text-soft);
            margin-bottom: 18px;
            flex-wrap: wrap;
        }
        .collection-meta i {
            color: var(--accent-gold);
            margin-right: 4px;
        }
        /* Featured item list */
        .feature-list {
            background: #111827;
            border-radius: var(--radius-lg);
            padding: 30px 28px;
            border: 1px solid var(--border-soft);
        }
        .feature-item {
            display: flex;
            align-items: center;
            gap: 18px;
            padding: 16px 0;
            border-bottom: 1px solid rgba(255,255,255,0.06);
        }
        .feature-item:last-child {
            border-bottom: none;
        }
        .feature-item .rank {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--accent-gold);
            width: 48px;
            text-align: center;
        }
        .feature-item .thumb {
            width: 64px;
            height: 64px;
            border-radius: 16px;
            background-size: cover;
            background-position: center;
            flex-shrink: 0;
            border: 2px solid rgba(255,215,0,0.3);
        }
        .feature-item .info h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .feature-item .info p {
            color: var(--text-muted);
            font-size: 0.85rem;
            margin-bottom: 0;
        }
        .feature-item .reward {
            margin-left: auto;
            text-align: right;
            font-weight: 700;
            color: var(--accent-gold);
        }
        /* FAQ */
        .faq-custom .accordion-item {
            background: #111827;
            border: 1px solid var(--border-soft);
            border-radius: 16px !important;
            margin-bottom: 14px;
            overflow: hidden;
        }
        .faq-custom .accordion-button {
            background: transparent;
            color: var(--text-white);
            font-weight: 600;
            padding: 18px 22px;
            box-shadow: none;
        }
        .faq-custom .accordion-button:not(.collapsed) {
            background: rgba(255,215,0,0.06);
            color: var(--accent-gold);
        }
        .faq-custom .accordion-button:focus {
            box-shadow: none;
            border-color: rgba(255,215,0,0.3);
        }
        .faq-custom .accordion-body {
            color: var(--text-muted);
            padding: 0 22px 20px;
        }
        /* CTA */
        .cta-final {
            background: linear-gradient(145deg, #1A2235, #0F1523);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            border: 1px solid var(--border-gold);
            box-shadow: var(--shadow-gold);
            text-align: center;
        }
        .cta-final h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 12px;
        }
        .cta-final p {
            color: var(--text-soft);
            max-width: 600px;
            margin: 0 auto 26px;
        }
        .btn-gold-lg {
            background: linear-gradient(135deg, #FFD700, #FF8F00);
            border: none;
            color: #0A0E17;
            padding: 14px 34px;
            border-radius: 40px;
            font-weight: 800;
            font-size: 1rem;
            box-shadow: 0 10px 30px rgba(255,143,0,0.4);
            transition: var(--transition);
        }
        .btn-gold-lg:hover {
            transform: translateY(-3px);
            box-shadow: 0 16px 36px rgba(255,143,0,0.55);
            color: #0A0E17;
        }
        /* Footer */
        .footer-custom {
            background: #0B101C;
            border-top: 1px solid var(--border-soft);
            padding: 48px 0 24px;
            margin-top: 40px;
        }
        .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: white;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
        }
        .footer-desc {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
            margin-bottom: 18px;
        }
        .trust-badges {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .trust-badge {
            background: rgba(255,255,255,0.06);
            border: 1px solid rgba(255,215,0,0.25);
            color: var(--accent-gold);
            padding: 5px 12px;
            border-radius: 30px;
            font-size: 0.75rem;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }
        .footer-heading {
            font-size: 1rem;
            font-weight: 700;
            color: white;
            margin-bottom: 16px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: var(--text-muted);
            font-size: 0.9rem;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent-gold);
            padding-left: 4px;
        }
        .footer-copy {
            border-top: 1px solid rgba(255,255,255,0.06);
            margin-top: 36px;
            padding-top: 20px;
            color: var(--text-muted);
            font-size: 0.85rem;
            text-align: center;
        }
        /* FAB left */
        .fab-left {
            position: fixed;
            left: 20px;
            bottom: 90px;
            z-index: 999;
            width: 54px;
            height: 54px;
            border-radius: 50%;
            background: linear-gradient(135deg, #FFD700, #FF8F00);
            border: 2px solid #FFD700;
            box-shadow: 0 4px 20px rgba(255,215,0,0.35);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0A0E17;
            font-size: 1.4rem;
            opacity: 0.7;
            animation: fabFloat 3s ease-in-out infinite;
            transition: var(--transition);
            cursor: pointer;
            text-decoration: none;
        }
        .fab-left:hover {
            opacity: 1;
            transform: scale(1.1) rotate(360deg);
            color: #0A0E17;
        }
        .fab-left .notification-dot {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            background: #D32F2F;
            border-radius: 50%;
            border: 2px solid #0A0E17;
            animation: blinkDot 1.6s infinite;
        }
        @keyframes fabFloat {
            0%,100% { transform: translateY(0); }
            50% { transform: translateY(-8px); }
        }
        @keyframes blinkDot {
            0%,100% { opacity: 1; }
            50% { opacity: 0.3; }
        }
        /* Responsive */
        @media (max-width: 768px) {
            .hero-title { font-size: 2rem; }
            .bento-main { padding: 28px 22px; min-height: auto; }
            .section-title { font-size: 1.6rem; }
            .collection-img { height: 160px; }
            .feature-item { flex-wrap: wrap; }
            .feature-item .reward { margin-left: 0; text-align: left; width: 100%; }
            .cta-final { padding: 32px 22px; }
            .hero-bento { padding-top: 32px; }
        }
        @media (max-width: 520px) {
            .container { padding-left: 16px; padding-right: 16px; }
            .hero-title { font-size: 1.7rem; }
            .hero-stats { gap: 16px; }
            .nav-actions .btn-login, .nav-actions .btn-signup { padding: 6px 12px; font-size: 0.8rem; }
        }

/* roulang page: category2 */
:root {
            --primary-bg: #0A0E17;
            --secondary-bg: #0F1522;
            --card-bg: #141B2E;
            --accent-gold: #FFD700;
            --accent-orange: #FF8F00;
            --accent-red: #E53935;
            --text-white: #FFFFFF;
            --text-muted: #B0B8C5;
            --border-glow: rgba(255, 215, 0, 0.3);
            --border-dark: #1E2742;
            --shadow-glow: 0 4px 20px rgba(255, 215, 0, 0.15);
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --font-sans: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
        }

        * {
            box-sizing: border-box;
        }

        body {
            background-color: var(--primary-bg);
            color: var(--text-white);
            font-family: var(--font-sans);
            line-height: 1.6;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.25s ease;
        }

        a:hover {
            color: var(--accent-gold);
        }

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

        .container {
            max-width: 1240px;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== NAVBAR ===== */
        .navbar-custom {
            background: rgba(10, 14, 23, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-dark);
            padding: 12px 0;
            position: sticky;
            top: 0;
            z-index: 1030;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
        }

        .navbar-brand-custom {
            display: flex;
            align-items: center;
            font-weight: 800;
            font-size: 1.35rem;
            color: var(--text-white);
            letter-spacing: -0.02em;
        }

        .navbar-brand-custom .brand-icon {
            display: inline-flex;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-orange));
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--primary-bg);
            margin-right: 10px;
            box-shadow: 0 0 15px rgba(255, 215, 0, 0.4);
        }

        .navbar-collapse-custom {
            flex-grow: 0;
        }

        .nav-link-custom {
            color: var(--text-muted);
            font-weight: 600;
            font-size: 0.95rem;
            padding: 8px 16px;
            border-radius: 30px;
            margin: 0 2px;
            transition: all 0.25s ease;
            display: inline-block;
        }

        .nav-link-custom:hover {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
        }

        .nav-link-custom.active {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.12);
            box-shadow: inset 0 0 0 1px rgba(255, 215, 0, 0.2);
        }

        .navbar-toggler-custom {
            background: transparent;
            border: none;
            width: 44px;
            height: 44px;
            position: relative;
        }

        .navbar-toggler-icon-custom {
            display: inline-block;
            width: 28px;
            height: 2px;
            background: var(--text-white);
            position: relative;
            transition: all 0.3s ease;
        }

        .navbar-toggler-icon-custom::before,
        .navbar-toggler-icon-custom::after {
            content: '';
            position: absolute;
            width: 28px;
            height: 2px;
            background: var(--text-white);
            left: 0;
            transition: all 0.3s ease;
        }

        .navbar-toggler-icon-custom::before {
            top: -8px;
        }

        .navbar-toggler-icon-custom::after {
            top: 8px;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-left: 16px;
        }

        .btn-login,
        .btn-signup {
            border: none;
            font-weight: 700;
            font-size: 0.9rem;
            padding: 8px 20px;
            border-radius: 30px;
            transition: all 0.3s ease;
            white-space: nowrap;
        }

        .btn-login {
            background: transparent;
            color: var(--text-white);
            border: 1px solid var(--border-dark);
        }

        .btn-login:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: var(--accent-gold);
        }

        .btn-signup {
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-orange));
            color: var(--primary-bg);
            box-shadow: 0 4px 15px rgba(255, 215, 0, 0.35);
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(255, 215, 0, 0.5);
        }

        /* ===== HERO ===== */
        .hero-category {
            padding: 64px 0 48px;
            background: radial-gradient(ellipse at 30% 20%, #1A1F35 0%, #0A0E17 70%);
            border-bottom: 1px solid var(--border-dark);
            position: relative;
            overflow: hidden;
        }

        .hero-category::before {
            content: '';
            position: absolute;
            top: -20%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(255, 215, 0, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 215, 0, 0.12);
            border: 1px solid rgba(255, 215, 0, 0.3);
            color: var(--accent-gold);
            font-weight: 700;
            font-size: 0.85rem;
            padding: 6px 16px;
            border-radius: 30px;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }

        .hero-category h1 {
            font-size: 3rem;
            font-weight: 900;
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
            background: linear-gradient(135deg, #FFFFFF 30%, var(--accent-gold) 80%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-sub {
            font-size: 1.15rem;
            color: var(--text-muted);
            max-width: 700px;
            margin-bottom: 28px;
            line-height: 1.7;
        }

        .hero-search {
            display: flex;
            max-width: 560px;
            margin-bottom: 28px;
            gap: 8px;
        }

        .hero-search input {
            flex: 1;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-dark);
            border-radius: 30px;
            padding: 14px 24px;
            color: var(--text-white);
            font-size: 0.95rem;
            outline: none;
            transition: all 0.3s ease;
        }

        .hero-search input:focus {
            border-color: var(--accent-gold);
            box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.15);
        }

        .hero-search input::placeholder {
            color: var(--text-muted);
        }

        .btn-search {
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-orange));
            color: var(--primary-bg);
            font-weight: 800;
            border: none;
            border-radius: 30px;
            padding: 14px 28px;
            font-size: 0.95rem;
            transition: all 0.3s ease;
            white-space: nowrap;
        }

        .btn-search:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(255, 215, 0, 0.4);
        }

        .category-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 20px;
        }

        .tag-link {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border-dark);
            color: var(--text-muted);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            transition: all 0.25s ease;
        }

        .tag-link:hover {
            background: rgba(255, 215, 0, 0.1);
            border-color: var(--accent-gold);
            color: var(--accent-gold);
        }

        /* ===== SECTION COMMON ===== */
        .section-custom {
            padding: 64px 0;
            position: relative;
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 12px;
            line-height: 1.25;
        }

        .section-desc {
            color: var(--text-muted);
            font-size: 1.05rem;
            max-width: 720px;
            margin-bottom: 32px;
            line-height: 1.7;
        }

        /* ===== COLLECTION FLOW (专题合集流) ===== */
        .collection-cover {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
            margin-bottom: 40px;
            border: 1px solid var(--border-dark);
            background: var(--card-bg);
        }

        .collection-cover img {
            width: 100%;
            height: 320px;
            object-fit: cover;
            opacity: 0.85;
        }

        .collection-cover-overlay {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(to bottom, rgba(10, 14, 23, 0.1) 0%, rgba(10, 14, 23, 0.9) 90%);
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 32px;
        }

        .collection-cover-overlay h2 {
            font-size: 2.4rem;
            font-weight: 900;
            color: #fff;
            margin-bottom: 8px;
        }

        .collection-cover-overlay p {
            color: var(--text-muted);
            font-size: 1.05rem;
            margin-bottom: 16px;
        }

        .collection-meta {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .meta-chip {
            background: rgba(255, 215, 0, 0.15);
            border: 1px solid rgba(255, 215, 0, 0.3);
            color: var(--accent-gold);
            font-weight: 700;
            font-size: 0.8rem;
            padding: 4px 12px;
            border-radius: 16px;
        }

        .collection-directory {
            margin-bottom: 48px;
        }

        .directory-heading {
            font-size: 1.5rem;
            font-weight: 800;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .directory-heading i {
            color: var(--accent-gold);
        }

        .directory-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
            gap: 16px;
        }

        .directory-item {
            background: var(--card-bg);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-md);
            padding: 20px;
            display: flex;
            align-items: center;
            gap: 14px;
            transition: all 0.3s ease;
            cursor: pointer;
        }

        .directory-item:hover {
            border-color: var(--accent-gold);
            box-shadow: var(--shadow-glow);
            transform: translateY(-3px);
        }

        .directory-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: linear-gradient(135deg, rgba(255, 215, 0, 0.15), rgba(255, 143, 0, 0.15));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--accent-gold);
            flex-shrink: 0;
        }

        .directory-item h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin: 0 0 4px;
        }

        .directory-item p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0;
        }

        /* Featured items grid */
        .featured-items {
            margin-bottom: 48px;
        }

        .featured-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }

        .featured-card {
            background: var(--card-bg);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }

        .featured-card:hover {
            border-color: var(--accent-gold);
            box-shadow: var(--shadow-glow);
            transform: translateY(-5px);
        }

        .featured-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-bottom: 1px solid var(--border-dark);
        }

        .featured-card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .featured-card h4 {
            font-size: 1.15rem;
            font-weight: 800;
            margin-bottom: 8px;
        }

        .featured-card p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-bottom: 16px;
            flex: 1;
        }

        .btn-outline-gold {
            background: transparent;
            border: 1px solid var(--accent-gold);
            color: var(--accent-gold);
            font-weight: 700;
            padding: 8px 16px;
            border-radius: 24px;
            font-size: 0.85rem;
            transition: all 0.3s ease;
            align-self: flex-start;
        }

        .btn-outline-gold:hover {
            background: var(--accent-gold);
            color: var(--primary-bg);
        }

        /* Related recommendations */
        .related-section {
            margin-bottom: 48px;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
            gap: 20px;
        }

        .related-item {
            background: var(--card-bg);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-sm);
            padding: 16px;
            display: flex;
            align-items: center;
            gap: 12px;
            transition: all 0.25s ease;
        }

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

        .related-item img {
            width: 56px;
            height: 56px;
            border-radius: 10px;
            object-fit: cover;
            flex-shrink: 0;
        }

        .related-item h5 {
            font-size: 0.95rem;
            font-weight: 700;
            margin: 0 0 4px;
        }

        .related-item p {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin: 0;
        }

        /* ===== CTA SAVE/SHARE ===== */
        .cta-share-section {
            background: linear-gradient(135deg, #1A1F35, #0F1522);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-lg);
            padding: 48px 32px;
            margin-bottom: 48px;
            text-align: center;
        }

        .cta-share-section h3 {
            font-size: 1.8rem;
            font-weight: 900;
            margin-bottom: 12px;
        }

        .cta-share-section p {
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto 24px;
        }

        .cta-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn-save {
            background: var(--accent-gold);
            color: var(--primary-bg);
            font-weight: 800;
            border: none;
            padding: 14px 32px;
            border-radius: 30px;
            transition: all 0.3s ease;
        }

        .btn-save:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(255, 215, 0, 0.4);
        }

        .btn-share {
            background: transparent;
            border: 1px solid var(--accent-gold);
            color: var(--accent-gold);
            font-weight: 700;
            padding: 14px 32px;
            border-radius: 30px;
            transition: all 0.3s ease;
        }

        .btn-share:hover {
            background: rgba(255, 215, 0, 0.1);
        }

        /* ===== FAQ ===== */
        .faq-section {
            margin-bottom: 48px;
        }

        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all 0.3s ease;
        }

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

        .faq-question {
            padding: 18px 24px;
            font-weight: 700;
            font-size: 1.05rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text-white);
        }

        .faq-question i {
            color: var(--accent-gold);
            transition: transform 0.3s ease;
        }

        .faq-answer {
            padding: 0 24px 20px;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
            display: none;
        }

        .faq-item.active .faq-answer {
            display: block;
        }

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

        /* ===== FOOTER ===== */
        .footer-custom {
            background: #080B12;
            border-top: 1px solid var(--border-dark);
            padding: 48px 0 24px;
            margin-top: 40px;
        }

        .footer-brand {
            font-weight: 800;
            font-size: 1.3rem;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
        }

        .footer-desc {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .trust-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 16px;
        }

        .trust-badge {
            background: rgba(255, 215, 0, 0.08);
            border: 1px solid rgba(255, 215, 0, 0.2);
            color: var(--accent-gold);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 16px;
        }

        .footer-heading {
            font-size: 1rem;
            font-weight: 800;
            margin-bottom: 16px;
            color: var(--text-white);
        }

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

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

        .footer-links a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: color 0.25s ease;
        }

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

        .footer-bottom {
            border-top: 1px solid var(--border-dark);
            margin-top: 32px;
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* ===== FAB ===== */
        .fab-custom {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 1050;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-orange));
            border: 2px solid var(--accent-gold);
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.35);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--primary-bg);
            cursor: pointer;
            transition: all 0.3s ease;
            animation: fabFloat 3s ease-in-out infinite;
        }

        .fab-custom:hover {
            transform: scale(1.1);
            box-shadow: 0 8px 30px rgba(255, 215, 0, 0.5);
        }

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

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

        /* ===== RESPONSIVE ===== */
        @media (max-width: 1024px) {
            .hero-category h1 {
                font-size: 2.4rem;
            }
            .collection-cover img {
                height: 260px;
            }
            .collection-cover-overlay h2 {
                font-size: 2rem;
            }
        }

        @media (max-width: 768px) {
            .navbar-custom {
                padding: 8px 0;
            }
            .nav-actions {
                margin-left: 0;
                margin-top: 8px;
                width: 100%;
                justify-content: flex-end;
            }
            .hero-category {
                padding: 40px 0 32px;
            }
            .hero-category h1 {
                font-size: 2rem;
            }
            .hero-sub {
                font-size: 1rem;
            }
            .hero-search {
                flex-direction: column;
            }
            .section-custom {
                padding: 40px 0;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .collection-cover img {
                height: 220px;
            }
            .collection-cover-overlay {
                padding: 20px;
            }
            .collection-cover-overlay h2 {
                font-size: 1.6rem;
            }
            .cta-share-section {
                padding: 32px 20px;
            }
            .fab-custom {
                left: 12px;
                bottom: 80px;
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .navbar-brand-custom {
                font-size: 1.1rem;
            }
            .navbar-brand-custom .brand-icon {
                width: 36px;
                height: 36px;
                font-size: 1.2rem;
            }
            .hero-category h1 {
                font-size: 1.7rem;
            }
            .directory-list {
                grid-template-columns: 1fr;
            }
            .featured-grid {
                grid-template-columns: 1fr;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .cta-buttons {
                flex-direction: column;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }