/* roulang page: index */
:root {
            --bg-deep: #0A2E1C;
            --bg-forest: #123E25;
            --bg-card: #0B3C25;
            --accent-gold: #FFD700;
            --accent-red: #D32F2F;
            --accent-lime: #32CD32;
            --accent-amber: #FFCC00;
            --text-white: #FFFFFF;
            --text-pale: #D1F2EB;
            --text-soft: #C5E2D2;
            --border-gold: rgba(255, 215, 0, 0.4);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.2);
            --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.35);
            --radius-sm: 10px;
            --radius-md: 18px;
            --radius-lg: 28px;
            --radius-xl: 36px;
            --transition-base: all 0.25s ease;
            --transition-slow: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-main: 'Be Vietnam Pro', 'Segoe UI', 'Roboto', sans-serif;
            --spacing-section: 5.5rem;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

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

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

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

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

        .container-custom {
            width: min(1200px, 92%);
            margin: 0 auto;
        }

        /* Navbar */
        .navbar-custom {
            background: rgba(6, 34, 20, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 215, 0, 0.15);
            padding: 0.8rem 0;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            transition: var(--transition-base);
        }

        .navbar-custom.scrolled {
            background: rgba(6, 34, 20, 0.98);
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.5);
        }

        .navbar-brand-custom {
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--accent-gold) !important;
            letter-spacing: -0.02em;
            display: flex;
            align-items: center;
            gap: 0.6rem;
            white-space: nowrap;
        }

        .navbar-brand-custom i {
            font-size: 1.6rem;
            color: var(--accent-gold);
        }

        .nav-link-custom {
            color: var(--text-pale) !important;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.5rem 1rem !important;
            position: relative;
            transition: var(--transition-base);
        }

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

        .nav-link-custom:hover,
        .nav-link-custom.active {
            color: var(--accent-gold) !important;
        }

        .nav-link-custom:hover::after,
        .nav-link-custom.active::after {
            width: 70%;
        }

        .btn-login-nav {
            color: var(--accent-gold);
            font-weight: 600;
            padding: 0.55rem 1.1rem;
            border: 1px solid var(--accent-gold);
            border-radius: 50px;
            background: transparent;
            transition: var(--transition-base);
        }

        .btn-login-nav:hover {
            background: rgba(255, 215, 0, 0.12);
            color: var(--accent-gold);
        }

        .btn-signup-nav {
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
            color: #0A2E1C !important;
            font-weight: 700;
            padding: 0.55rem 1.3rem;
            border-radius: 50px;
            box-shadow: 0 4px 16px rgba(255, 215, 0, 0.35);
            transition: var(--transition-base);
            border: none;
        }

        .btn-signup-nav:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 215, 0, 0.5);
            color: #0A2E1C !important;
        }

        .navbar-toggler-custom {
            border: 1px solid rgba(255, 215, 0, 0.4);
            background: transparent;
            color: var(--accent-gold);
            padding: 0.4rem 0.7rem;
            border-radius: 8px;
        }

        /* Hero */
        .hero-banner {
            position: relative;
            padding: 8rem 0 5rem;
            background: linear-gradient(180deg, #062315 0%, #0A2E1C 45%, #0B3C25 100%);
            overflow: hidden;
            min-height: 85vh;
            display: flex;
            align-items: center;
        }

        .hero-banner::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: 0.25;
            z-index: 0;
        }

        .hero-banner::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(ellipse at center, transparent 0%, rgba(6, 35, 21, 0.75) 100%);
            z-index: 1;
        }

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

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255, 215, 0, 0.15);
            border: 1px solid rgba(255, 215, 0, 0.4);
            color: var(--accent-gold);
            padding: 0.5rem 1.2rem;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            letter-spacing: 0.02em;
        }

        .hero-title {
            font-size: clamp(2.5rem, 5.5vw, 4.5rem);
            font-weight: 900;
            line-height: 1.15;
            margin: 1.5rem 0 1.2rem;
            letter-spacing: -0.03em;
            color: var(--text-white);
        }

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

        .hero-title .highlight-gold::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 0;
            right: 0;
            height: 6px;
            background: linear-gradient(90deg, var(--accent-gold), var(--accent-amber));
            border-radius: 3px;
            opacity: 0.5;
            z-index: -1;
        }

        .hero-desc {
            font-size: 1.1rem;
            color: var(--text-pale);
            max-width: 680px;
            line-height: 1.7;
            margin-bottom: 2rem;
        }

        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            align-items: center;
            margin-bottom: 2.5rem;
        }

        .btn-hero-primary {
            background: linear-gradient(135deg, #FFD700, #FFCC00);
            color: #0A2E1C;
            font-weight: 800;
            padding: 1rem 2.2rem;
            border-radius: 50px;
            font-size: 1.05rem;
            border: none;
            box-shadow: 0 8px 28px rgba(255, 215, 0, 0.45);
            transition: var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
        }

        .btn-hero-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 14px 36px rgba(255, 215, 0, 0.6);
            color: #0A2E1C;
        }

        .btn-hero-secondary {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: var(--text-white);
            font-weight: 600;
            padding: 1rem 2rem;
            border-radius: 50px;
            font-size: 1rem;
            transition: var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            backdrop-filter: blur(8px);
        }

        .btn-hero-secondary:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            transform: translateY(-2px);
        }

        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
        }

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

        .hero-stat-number {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent-gold);
            line-height: 1.2;
        }

        .hero-stat-label {
            font-size: 0.85rem;
            color: var(--text-pale);
            opacity: 0.8;
        }

        /* Progress Ring */
        .progress-ring-wrap {
            display: flex;
            justify-content: center;
            align-items: center;
            position: relative;
            z-index: 2;
        }

        .progress-ring {
            position: relative;
            width: 240px;
            height: 240px;
        }

        .progress-ring svg {
            width: 100%;
            height: 100%;
            transform: rotate(-90deg);
        }

        .progress-ring-bg {
            fill: none;
            stroke: rgba(255, 255, 255, 0.08);
            stroke-width: 10;
        }

        .progress-ring-fg {
            fill: none;
            stroke: var(--accent-gold);
            stroke-width: 10;
            stroke-linecap: round;
            stroke-dasharray: 628.3;
            stroke-dashoffset: 157.1;
            animation: ringPulse 3s ease-in-out infinite;
        }

        @keyframes ringPulse {
            0%, 100% { stroke-dashoffset: 157.1; }
            50% { stroke-dashoffset: 140; }
        }

        .progress-ring-center {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            text-align: center;
        }

        .progress-ring-percent {
            font-size: 2.5rem;
            font-weight: 900;
            color: var(--accent-gold);
            line-height: 1;
        }

        .progress-ring-text {
            font-size: 0.8rem;
            color: var(--text-pale);
            margin-top: 0.3rem;
        }

        .hero-tier-preview {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 215, 0, 0.25);
            border-radius: var(--radius-md);
            padding: 1.2rem 1.5rem;
            backdrop-filter: blur(10px);
            margin-top: 1.5rem;
        }

        .hero-tier-label {
            font-size: 0.75rem;
            color: var(--accent-gold);
            text-transform: uppercase;
            letter-spacing: 0.08em;
            font-weight: 700;
        }

        .hero-tier-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-white);
            margin: 0.3rem 0;
        }

        .hero-tier-desc {
            font-size: 0.85rem;
            color: var(--text-pale);
            margin-bottom: 0.8rem;
        }

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

        .section-header {
            margin-bottom: 3rem;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            color: var(--accent-gold);
            font-weight: 700;
            font-size: 0.85rem;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 0.8rem;
        }

        .section-title {
            font-size: clamp(2rem, 3.5vw, 3rem);
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.02em;
            color: var(--text-white);
            margin-bottom: 1rem;
        }

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

        /* Product Stage */
        .product-stage {
            background: linear-gradient(180deg, #0B3C25 0%, #0A2E1C 100%);
            position: relative;
            overflow: hidden;
        }

        .product-stage::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -100px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 215, 0, 0.08) 0%, transparent 70%);
            border-radius: 50%;
        }

        .stage-frame {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid rgba(255, 215, 0, 0.25);
            box-shadow: var(--shadow-card);
            background: rgba(0, 0, 0, 0.3);
        }

        .stage-frame img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition-slow);
        }

        .stage-frame:hover img {
            transform: scale(1.03);
        }

        .stage-frame::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 40%;
            background: linear-gradient(0deg, rgba(6, 35, 21, 0.85) 0%, transparent 100%);
            pointer-events: none;
        }

        .stage-caption {
            position: absolute;
            bottom: 1.5rem;
            left: 1.5rem;
            right: 1.5rem;
            z-index: 2;
        }

        .stage-caption h4 {
            font-weight: 700;
            font-size: 1.4rem;
            color: var(--text-white);
            margin-bottom: 0.3rem;
        }

        .stage-caption p {
            color: var(--text-pale);
            font-size: 0.9rem;
            margin-bottom: 0;
        }

        /* Steps */
        .steps-section {
            background: var(--bg-forest);
            position: relative;
        }

        .step-item {
            display: flex;
            gap: 1.5rem;
            padding: 1.5rem 0;
            border-bottom: 1px solid rgba(255, 215, 0, 0.12);
            transition: var(--transition-base);
        }

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

        .step-item:hover {
            padding-left: 0.5rem;
        }

        .step-number {
            flex-shrink: 0;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
            color: #0A2E1C;
            font-weight: 900;
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 16px rgba(255, 215, 0, 0.35);
        }

        .step-content h4 {
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--text-white);
            margin-bottom: 0.4rem;
        }

        .step-content p {
            color: var(--text-pale);
            margin-bottom: 0;
            font-size: 0.95rem;
        }

        /* Reviews */
        .reviews-section {
            background: var(--bg-deep);
            position: relative;
        }

        .review-card {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-md);
            padding: 2rem;
            height: 100%;
            transition: var(--transition-base);
        }

        .review-card:hover {
            border-color: rgba(255, 215, 0, 0.3);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
        }

        .review-stars {
            color: var(--accent-gold);
            margin-bottom: 1rem;
            font-size: 1rem;
        }

        .review-text {
            color: var(--text-pale);
            font-size: 0.95rem;
            line-height: 1.7;
            margin-bottom: 1.2rem;
        }

        .review-author {
            display: flex;
            align-items: center;
            gap: 0.8rem;
        }

        .review-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: #0A2E1C;
        }

        .review-name {
            font-weight: 600;
            color: var(--text-white);
            font-size: 0.9rem;
        }

        .review-date {
            font-size: 0.75rem;
            color: var(--text-pale);
            opacity: 0.7;
        }

        /* News List */
        .news-section {
            background: var(--bg-forest);
            position: relative;
        }

        .news-list-item {
            display: flex;
            align-items: flex-start;
            gap: 1.2rem;
            padding: 1.2rem 1rem;
            border-radius: var(--radius-sm);
            transition: var(--transition-base);
            border-left: 3px solid transparent;
        }

        .news-list-item:hover {
            background: rgba(255, 255, 255, 0.05);
            border-left-color: var(--accent-gold);
            padding-left: 1.5rem;
        }

        .news-list-icon {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: rgba(255, 215, 0, 0.15);
            color: var(--accent-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
        }

        .news-list-content {
            flex: 1;
        }

        .news-list-content h5 {
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-white);
            margin-bottom: 0.3rem;
            transition: var(--transition-base);
        }

        .news-list-item:hover .news-list-content h5 {
            color: var(--accent-gold);
        }

        .news-list-content p {
            font-size: 0.85rem;
            color: var(--text-pale);
            margin-bottom: 0;
            line-height: 1.5;
        }

        .news-meta {
            display: flex;
            gap: 1rem;
            font-size: 0.75rem;
            color: var(--text-pale);
            opacity: 0.7;
            margin-top: 0.3rem;
        }

        .news-sidebar {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 215, 0, 0.2);
            border-radius: var(--radius-md);
            padding: 1.8rem;
        }

        .news-sidebar h5 {
            font-weight: 700;
            color: var(--accent-gold);
            font-size: 1.1rem;
            margin-bottom: 1.2rem;
        }

        .news-sidebar-item {
            display: flex;
            align-items: center;
            gap: 0.8rem;
            padding: 0.7rem 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: var(--transition-base);
        }

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

        .news-sidebar-item:hover {
            padding-left: 0.5rem;
        }

        .news-sidebar-item i {
            color: var(--accent-gold);
            font-size: 0.8rem;
        }

        .news-sidebar-item span {
            font-size: 0.85rem;
            color: var(--text-pale);
        }

        /* Download CTA */
        .download-section {
            background: linear-gradient(135deg, #0A2E1C 0%, #123E25 50%, #0B3C25 100%);
            position: relative;
            overflow: hidden;
        }

        .download-section::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 700px;
            height: 700px;
            background: radial-gradient(circle, rgba(255, 215, 0, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .download-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 215, 0, 0.3);
            border-radius: var(--radius-lg);
            padding: 3.5rem 3rem;
            backdrop-filter: blur(12px);
            position: relative;
            z-index: 1;
        }

        .download-title {
            font-size: clamp(2rem, 3vw, 2.8rem);
            font-weight: 900;
            color: var(--text-white);
            margin-bottom: 1rem;
        }

        .download-desc {
            color: var(--text-pale);
            font-size: 1.05rem;
            margin-bottom: 2rem;
            max-width: 600px;
        }

        .download-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
        }

        .btn-download {
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
            color: #0A2E1C;
            font-weight: 800;
            padding: 0.9rem 2rem;
            border-radius: 50px;
            border: none;
            display: inline-flex;
            align-items: center;
            gap: 0.7rem;
            transition: var(--transition-base);
            box-shadow: 0 6px 20px rgba(255, 215, 0, 0.35);
        }

        .btn-download:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(255, 215, 0, 0.5);
            color: #0A2E1C;
        }

        .btn-download-outline {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: var(--text-white);
            font-weight: 600;
            padding: 0.9rem 2rem;
            border-radius: 50px;
            display: inline-flex;
            align-items: center;
            gap: 0.7rem;
            transition: var(--transition-base);
        }

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

        /* Floating Action Button */
        .fab-left {
            position: fixed;
            left: 1.5rem;
            bottom: 6rem;
            z-index: 1060;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, #1A1A1A, #0A0A0A);
            border: 2px solid var(--accent-gold);
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-gold);
            font-size: 1.4rem;
            cursor: pointer;
            transition: var(--transition-base);
            opacity: 0.75;
            animation: fabFloat 3s ease-in-out infinite;
        }

        .fab-left:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 8px 28px rgba(255, 215, 0, 0.5);
        }

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

        .fab-notification {
            position: absolute;
            top: -3px;
            right: -3px;
            width: 16px;
            height: 16px;
            background: var(--accent-red);
            border-radius: 50%;
            border: 2px solid #0A2E1C;
            animation: fabBlink 1.5s ease-in-out infinite;
        }

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

        @keyframes fabBlink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.4; }
        }

        /* Footer */
        .footer-custom {
            background: #062315;
            border-top: 1px solid rgba(255, 215, 0, 0.2);
            padding: 3rem 0 1.5rem;
            position: relative;
        }

        .footer-brand {
            font-weight: 800;
            font-size: 1.4rem;
            color: var(--accent-gold);
            margin-bottom: 1rem;
        }

        .footer-desc {
            color: var(--text-pale);
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 400px;
            margin-bottom: 1.5rem;
        }

        .footer-social {
            display: flex;
            gap: 0.8rem;
        }

        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-pale);
            transition: var(--transition-base);
        }

        .footer-social a:hover {
            background: rgba(255, 215, 0, 0.15);
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            transform: translateY(-3px);
        }

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

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

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

        .footer-links a {
            color: var(--text-pale);
            font-size: 0.9rem;
            transition: var(--transition-base);
        }

        .footer-links a:hover {
            color: var(--accent-gold);
            padding-left: 0.3rem;
        }

        .footer-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255, 215, 0, 0.1);
            border: 1px solid rgba(255, 215, 0, 0.25);
            color: var(--accent-gold);
            padding: 0.4rem 1rem;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-right: 0.6rem;
            margin-bottom: 0.6rem;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 1.5rem;
            margin-top: 2.5rem;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
        }

        .footer-copy {
            color: var(--text-pale);
            font-size: 0.85rem;
            opacity: 0.7;
        }

        .footer-legal {
            display: flex;
            gap: 1.5rem;
            flex-wrap: wrap;
        }

        .footer-legal a {
            color: var(--text-pale);
            font-size: 0.85rem;
            opacity: 0.7;
        }

        .footer-legal a:hover {
            color: var(--accent-gold);
            opacity: 1;
        }

        /* Responsive */
        @media (max-width: 992px) {
            :root {
                --spacing-section: 4rem;
            }

            .hero-banner {
                min-height: auto;
                padding: 7rem 0 4rem;
            }

            .hero-title {
                font-size: 2.8rem;
            }

            .progress-ring {
                width: 200px;
                height: 200px;
                margin: 0 auto;
            }

            .download-card {
                padding: 2.5rem 2rem;
            }
        }

        @media (max-width: 768px) {
            .navbar-custom {
                padding: 0.6rem 0;
            }

            .navbar-brand-custom {
                font-size: 1.05rem;
            }

            .navbar-brand-custom span {
                display: none;
            }

            .hero-banner {
                padding: 6rem 0 3rem;
            }

            .hero-title {
                font-size: 2.2rem;
            }

            .hero-desc {
                font-size: 1rem;
            }

            .hero-stats {
                gap: 1.5rem;
            }

            .hero-stat-number {
                font-size: 1.4rem;
            }

            .section-title {
                font-size: 1.8rem;
            }

            .review-card {
                padding: 1.5rem;
            }

            .download-card {
                padding: 2rem 1.5rem;
            }

            .download-title {
                font-size: 1.8rem;
            }

            .fab-left {
                left: 1rem;
                bottom: 5rem;
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.8rem;
            }

            .hero-cta-group {
                flex-direction: column;
                width: 100%;
            }

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

            .hero-stats {
                flex-direction: column;
                gap: 1rem;
            }

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

            .step-item {
                flex-direction: column;
                gap: 0.8rem;
            }

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

            .download-buttons {
                flex-direction: column;
            }

            .btn-download,
            .btn-download-outline {
                width: 100%;
                justify-content: center;
            }

            .progress-ring {
                width: 160px;
                height: 160px;
            }
        }

/* roulang page: article */
:root {
            --bg-primary: #0B3C25;
            --bg-secondary: #062315;
            --bg-card: #0E462C;
            --bg-deep: #051A0F;
            --accent-gold: #FFCC00;
            --accent-lime: #32CD32;
            --accent-deep-gold: #D4A017;
            --text-white: #FFFDF0;
            --text-light: #C5E2D2;
            --text-muted: #8FBF9F;
            --border-gold: rgba(255, 204, 0, 0.35);
            --border-soft: rgba(197, 226, 210, 0.15);
            --shadow-gold: 0 8px 30px rgba(255, 204, 0, 0.12);
            --shadow-card: 0 10px 35px rgba(0, 0, 0, 0.4);
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-primary: 'Be Vietnam Pro', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-primary);
            background: linear-gradient(165deg, var(--bg-primary) 0%, var(--bg-secondary) 45%, var(--bg-deep) 100%);
            color: var(--text-white);
            line-height: 1.65;
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        .container-custom {
            width: min(1180px, 92%);
            margin-inline: auto;
        }

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

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

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

        button,
        .btn {
            font-family: var(--font-primary);
            cursor: pointer;
            border: none;
            transition: var(--transition);
        }

        /* ===== Navbar ===== */
        .navbar-custom {
            background: rgba(6, 35, 21, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-gold);
            padding: 14px 0;
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: 0 6px 30px rgba(0, 0, 0, 0.45);
        }

        .navbar-brand-custom {
            display: flex;
            align-items: center;
            gap: 12px;
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--accent-gold);
            letter-spacing: -0.3px;
            white-space: nowrap;
        }

        .navbar-brand-custom i {
            font-size: 1.7rem;
            color: var(--accent-gold);
            filter: drop-shadow(0 0 10px rgba(255, 204, 0, 0.5));
        }

        .navbar-brand-custom:hover {
            color: var(--accent-gold);
            transform: translateY(-1px);
        }

        .navbar-toggler-custom {
            background: rgba(255, 204, 0, 0.12);
            border: 1px solid var(--border-gold);
            color: var(--accent-gold);
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            transition: var(--transition);
        }

        .navbar-toggler-custom:hover {
            background: rgba(255, 204, 0, 0.22);
        }

        .nav-link-custom {
            color: var(--text-light) !important;
            font-weight: 600;
            font-size: 0.92rem;
            padding: 8px 16px !important;
            border-radius: 50px;
            transition: var(--transition);
            position: relative;
        }

        .nav-link-custom:hover {
            color: var(--accent-gold) !important;
            background: rgba(255, 204, 0, 0.08);
        }

        .nav-link-custom.active {
            color: var(--accent-gold) !important;
            background: rgba(255, 204, 0, 0.14);
            font-weight: 700;
        }

        .nav-link-custom.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 18px;
            height: 3px;
            background: var(--accent-gold);
            border-radius: 2px;
        }

        .btn-login-nav {
            color: var(--text-light);
            font-weight: 600;
            font-size: 0.9rem;
            padding: 9px 20px;
            border-radius: 50px;
            border: 1px solid var(--border-soft);
            background: transparent;
            transition: var(--transition);
        }

        .btn-login-nav:hover {
            color: var(--accent-gold);
            border-color: var(--border-gold);
            background: rgba(255, 204, 0, 0.06);
        }

        .btn-signup-nav {
            color: var(--bg-deep);
            font-weight: 700;
            font-size: 0.9rem;
            padding: 9px 22px;
            border-radius: 50px;
            background: linear-gradient(135deg, var(--accent-gold) 0%, var(--accent-deep-gold) 100%);
            box-shadow: 0 4px 18px rgba(255, 204, 0, 0.35);
            transition: var(--transition);
        }

        .btn-signup-nav:hover {
            color: var(--bg-deep);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255, 204, 0, 0.5);
        }

        /* ===== Article Hero ===== */
        .article-hero {
            position: relative;
            padding: 50px 0 40px;
            overflow: hidden;
        }

        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 20%, rgba(255, 204, 0, 0.08) 0%, transparent 60%);
            pointer-events: none;
        }

        .article-breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 24px;
        }

        .article-breadcrumb a {
            color: var(--text-light);
            font-weight: 500;
        }

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

        .article-breadcrumb .separator {
            color: var(--accent-gold);
            opacity: 0.5;
        }

        .article-breadcrumb .current {
            color: var(--accent-gold);
            font-weight: 600;
        }

        .article-category-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 204, 0, 0.14);
            border: 1px solid var(--border-gold);
            color: var(--accent-gold);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 18px;
        }

        .article-hero h1 {
            font-size: clamp(1.8rem, 4vw, 2.7rem);
            font-weight: 900;
            line-height: 1.25;
            letter-spacing: -0.5px;
            color: var(--text-white);
            margin-bottom: 18px;
            max-width: 850px;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            font-size: 0.88rem;
            color: var(--text-muted);
            padding-bottom: 26px;
            border-bottom: 1px solid var(--border-soft);
        }

        .article-meta span {
            display: flex;
            align-items: center;
            gap: 7px;
        }

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

        /* ===== Article Layout ===== */
        .article-layout {
            display: grid;
            grid-template-columns: 1fr;
            gap: 36px;
            padding: 40px 0 60px;
        }

        .article-body {
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-lg);
            padding: clamp(24px, 4vw, 44px);
            box-shadow: var(--shadow-card);
        }

        .article-body-content {
            font-size: 1.05rem;
            line-height: 1.75;
            color: var(--text-light);
        }

        .article-body-content h2 {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-white);
            margin: 28px 0 14px;
            letter-spacing: -0.3px;
        }

        .article-body-content h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin: 22px 0 12px;
        }

        .article-body-content p {
            margin-bottom: 16px;
        }

        .article-body-content ul,
        .article-body-content ol {
            padding-left: 24px;
            margin-bottom: 18px;
        }

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

        .article-body-content img {
            border-radius: var(--radius-md);
            margin: 20px 0;
            box-shadow: var(--shadow-card);
        }

        .article-body-content blockquote {
            background: rgba(255, 204, 0, 0.06);
            border-left: 4px solid var(--accent-gold);
            padding: 16px 22px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 20px 0;
            font-style: italic;
            color: var(--text-light);
        }

        .article-body-content a {
            color: var(--accent-gold);
            font-weight: 600;
            border-bottom: 1px dashed var(--accent-gold);
        }

        .article-body-content a:hover {
            color: var(--accent-lime);
            border-bottom-color: var(--accent-lime);
        }

        .article-cta-box {
            margin-top: 36px;
            background: linear-gradient(135deg, rgba(255, 204, 0, 0.12) 0%, rgba(50, 205, 50, 0.08) 100%);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            padding: 28px;
            text-align: left;
        }

        .article-cta-box h4 {
            color: var(--text-white);
            font-weight: 800;
            font-size: 1.15rem;
            margin-bottom: 10px;
        }

        .article-cta-box p {
            color: var(--text-light);
            margin-bottom: 18px;
            font-size: 0.95rem;
        }

        .btn-cta-article {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: linear-gradient(135deg, var(--accent-gold) 0%, var(--accent-deep-gold) 100%);
            color: var(--bg-deep);
            font-weight: 800;
            font-size: 1rem;
            padding: 13px 32px;
            border-radius: 50px;
            box-shadow: 0 6px 24px rgba(255, 204, 0, 0.4);
            transition: var(--transition);
        }

        .btn-cta-article:hover {
            color: var(--bg-deep);
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(255, 204, 0, 0.55);
        }

        .article-not-found {
            text-align: left;
            padding: 50px 30px;
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-lg);
        }

        .article-not-found i {
            font-size: 3rem;
            color: var(--accent-gold);
            margin-bottom: 18px;
            display: block;
        }

        .article-not-found h2 {
            font-size: 1.5rem;
            font-weight: 800;
            margin-bottom: 12px;
        }

        .article-not-found p {
            color: var(--text-muted);
            margin-bottom: 22px;
        }

        /* ===== Related CTA Section ===== */
        .related-cta-section {
            padding: 50px 0 70px;
        }

        .related-cta-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 22px;
            margin-top: 28px;
        }

        .related-cta-card {
            background: var(--bg-card);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-md);
            padding: 26px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .related-cta-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-gold), var(--accent-lime));
            opacity: 0;
            transition: var(--transition);
        }

        .related-cta-card:hover {
            transform: translateY(-6px);
            border-color: var(--border-gold);
            box-shadow: var(--shadow-gold);
        }

        .related-cta-card:hover::before {
            opacity: 1;
        }

        .related-cta-card i {
            font-size: 2rem;
            color: var(--accent-gold);
            margin-bottom: 14px;
            display: block;
        }

        .related-cta-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 8px;
        }

        .related-cta-card p {
            color: var(--text-muted);
            font-size: 0.88rem;
            margin-bottom: 16px;
        }

        .related-cta-card a {
            font-weight: 700;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

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

        .section-heading-left h2 {
            font-size: clamp(1.4rem, 3vw, 2rem);
            font-weight: 800;
            letter-spacing: -0.4px;
            margin-bottom: 10px;
            color: var(--text-white);
        }

        .section-heading-left p {
            color: var(--text-muted);
            max-width: 650px;
            margin-bottom: 0;
            font-size: 0.95rem;
        }

        /* ===== Footer ===== */
        .footer-custom {
            background: var(--bg-deep);
            border-top: 1px solid var(--border-gold);
            padding: 60px 0 30px;
            margin-top: 20px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            font-weight: 800;
            font-size: 1.2rem;
            color: var(--accent-gold);
            margin-bottom: 16px;
        }

        .footer-brand i {
            font-size: 1.6rem;
            filter: drop-shadow(0 0 8px rgba(255, 204, 0, 0.5));
        }

        .footer-desc {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
            margin-bottom: 20px;
        }

        .footer-social {
            display: flex;
            gap: 12px;
        }

        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 204, 0, 0.1);
            border: 1px solid var(--border-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-gold);
            font-size: 1rem;
            transition: var(--transition);
        }

        .footer-social a:hover {
            background: var(--accent-gold);
            color: var(--bg-deep);
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(255, 204, 0, 0.4);
        }

        .footer-heading {
            color: var(--text-white);
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 18px;
            letter-spacing: 0.2px;
        }

        .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: var(--transition);
        }

        .footer-links a:hover {
            color: var(--accent-gold);
            padding-left: 6px;
        }

        .footer-badge {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-soft);
            color: var(--text-light);
            padding: 6px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 500;
            margin: 0 6px 8px 0;
            transition: var(--transition);
        }

        .footer-badge i {
            color: var(--accent-gold);
            font-size: 0.8rem;
        }

        .footer-badge:hover {
            border-color: var(--border-gold);
            background: rgba(255, 204, 0, 0.08);
        }

        .footer-bottom {
            border-top: 1px solid var(--border-soft);
            margin-top: 40px;
            padding-top: 24px;
            text-align: center;
            color: var(--text-muted);
            font-size: 0.82rem;
        }

        .footer-bottom a {
            color: var(--accent-gold);
            font-weight: 500;
        }

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

        /* ===== FAB ===== */
        .fab-support {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 1055;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, #1A0E05 0%, #2D1A06 100%);
            border: 2px solid var(--accent-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-gold);
            font-size: 1.4rem;
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
            animation: floatFab 3s ease-in-out infinite;
            transition: var(--transition);
            cursor: pointer;
            opacity: 0.7;
        }

        .fab-support::after {
            content: '';
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            background: #FF0040;
            border-radius: 50%;
            border: 2px solid var(--bg-deep);
            animation: blinkDot 1.6s ease-in-out infinite;
        }

        .fab-support:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 30px rgba(255, 215, 0, 0.6);
        }

        .fab-support:active {
            transform: scale(0.95) translateY(2px);
        }

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

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

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .container-custom {
                width: 94%;
            }
            .article-body {
                padding: 28px;
            }
        }

        @media (max-width: 768px) {
            .navbar-custom {
                padding: 10px 0;
            }
            .navbar-brand-custom {
                font-size: 1.05rem;
            }
            .navbar-brand-custom i {
                font-size: 1.4rem;
            }
            .btn-login-nav,
            .btn-signup-nav {
                padding: 7px 16px;
                font-size: 0.82rem;
            }
            .nav-link-custom {
                font-size: 0.88rem;
                padding: 10px 14px !important;
            }
            .navbar-collapse {
                background: rgba(6, 35, 21, 0.98);
                border-radius: var(--radius-md);
                padding: 16px;
                margin-top: 12px;
                border: 1px solid var(--border-soft);
            }
            .article-hero {
                padding: 30px 0 24px;
            }
            .article-hero h1 {
                font-size: 1.55rem;
            }
            .article-meta {
                gap: 12px;
                font-size: 0.8rem;
            }
            .article-layout {
                gap: 24px;
                padding: 24px 0 40px;
            }
            .article-body {
                padding: 20px;
                border-radius: var(--radius-md);
            }
            .article-body-content {
                font-size: 0.95rem;
            }
            .article-body-content h2 {
                font-size: 1.25rem;
            }
            .article-body-content h3 {
                font-size: 1.05rem;
            }
            .article-cta-box {
                padding: 20px;
            }
            .btn-cta-article {
                width: 100%;
                justify-content: center;
                font-size: 0.9rem;
                padding: 12px 24px;
            }
            .related-cta-section {
                padding: 30px 0 50px;
            }
            .related-cta-grid {
                grid-template-columns: 1fr;
            }
            .footer-custom {
                padding: 40px 0 20px;
            }
            .fab-support {
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
                left: 12px;
                bottom: 80px;
            }
        }

        @media (max-width: 520px) {
            .container-custom {
                width: 96%;
            }
            .navbar-brand-custom {
                font-size: 0.92rem;
                gap: 8px;
            }
            .navbar-brand-custom i {
                font-size: 1.2rem;
            }
            .navbar-toggler-custom {
                width: 38px;
                height: 38px;
                font-size: 1rem;
            }
            .btn-login-nav,
            .btn-signup-nav {
                padding: 6px 12px;
                font-size: 0.75rem;
            }
            .article-hero h1 {
                font-size: 1.3rem;
            }
            .article-meta {
                font-size: 0.72rem;
                gap: 8px;
            }
            .article-body {
                padding: 16px;
            }
            .article-body-content {
                font-size: 0.9rem;
            }
            .article-cta-box h4 {
                font-size: 1rem;
            }
            .footer-brand {
                font-size: 1rem;
            }
            .footer-desc {
                font-size: 0.82rem;
            }
            .footer-social a {
                width: 34px;
                height: 34px;
                font-size: 0.85rem;
            }
            .footer-badge {
                font-size: 0.72rem;
                padding: 5px 10px;
            }
        }

/* roulang page: category1 */
:root {
            --primary-bg: #0A2E1C;
            --secondary-bg: #123E25;
            --accent-gold: #FFD700;
            --accent-red: #D32F2F;
            --text-white: #FFFFFF;
            --text-mint: #D1F2EB;
            --text-muted: #A8C5BB;
            --border-gold: rgba(255, 215, 0, 0.35);
            --border-mint: rgba(209, 242, 235, 0.15);
            --shadow-gold: 0 8px 32px rgba(255, 215, 0, 0.12);
            --shadow-dark: 0 12px 40px rgba(0, 0, 0, 0.35);
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --spacing-sm: 12px;
            --spacing-md: 24px;
            --spacing-lg: 48px;
            --spacing-xl: 72px;
            --font-body: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            --font-display: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
        }

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

        body {
            font-family: var(--font-body);
            background-color: var(--primary-bg);
            color: var(--text-white);
            line-height: 1.65;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        button, .btn {
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .container-custom {
            width: 100%;
            max-width: 1240px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== NAVBAR ===== */
        .navbar-custom {
            background: rgba(10, 46, 28, 0.97);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            padding: 16px 0;
            border-bottom: 1px solid var(--border-mint);
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
        }

        .navbar-brand-custom {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--accent-gold);
            letter-spacing: 0.3px;
            white-space: nowrap;
        }

        .navbar-brand-custom i {
            font-size: 1.6rem;
            color: var(--accent-gold);
            filter: drop-shadow(0 0 6px rgba(255, 215, 0, 0.5));
        }

        .navbar-brand-custom span {
            color: var(--text-white);
        }

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

        .navbar-toggler-custom {
            border: 1px solid var(--border-gold);
            background: transparent;
            color: var(--accent-gold);
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            font-size: 1.2rem;
        }

        .navbar-toggler-custom:focus {
            box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.25);
            outline: none;
        }

        .nav-link-custom {
            color: var(--text-mint);
            font-weight: 600;
            padding: 10px 16px !important;
            border-radius: 8px;
            transition: all 0.3s ease;
            font-size: 0.95rem;
            position: relative;
        }

        .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);
        }

        .nav-link-custom.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 2px;
            background: var(--accent-gold);
            border-radius: 2px;
        }

        .btn-login-nav {
            color: var(--text-white);
            font-weight: 600;
            padding: 8px 18px;
            border: 1px solid var(--border-gold);
            border-radius: 30px;
            transition: all 0.3s ease;
            font-size: 0.9rem;
            white-space: nowrap;
        }

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

        .btn-signup-nav {
            background: linear-gradient(135deg, #FFD700, #FFA500);
            color: #0A2E1C;
            font-weight: 700;
            padding: 8px 22px;
            border-radius: 30px;
            transition: all 0.3s ease;
            font-size: 0.9rem;
            white-space: nowrap;
            box-shadow: 0 4px 18px rgba(255, 215, 0, 0.35);
            border: none;
        }

        .btn-signup-nav:hover {
            background: linear-gradient(135deg, #FFE44D, #FFB840);
            color: #0A2E1C;
            box-shadow: 0 6px 26px rgba(255, 215, 0, 0.5);
            transform: translateY(-1px);
        }

        /* ===== PAGE BANNER ===== */
        .page-banner {
            background: linear-gradient(135deg, var(--secondary-bg) 0%, #0B3A22 50%, var(--primary-bg) 100%);
            padding: 64px 0 52px;
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--border-mint);
        }

        .page-banner::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(255, 215, 0, 0.12), transparent 70%);
            border-radius: 50%;
        }

        .page-banner::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -40px;
            width: 250px;
            height: 250px;
            background: radial-gradient(circle, rgba(209, 242, 235, 0.08), transparent 70%);
            border-radius: 50%;
        }

        .page-banner .badge-category {
            display: inline-block;
            background: rgba(255, 215, 0, 0.15);
            color: var(--accent-gold);
            border: 1px solid var(--border-gold);
            padding: 6px 16px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.8rem;
            letter-spacing: 0.5px;
            text-transform: uppercase;
            margin-bottom: 16px;
        }

        .page-banner h1 {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.25;
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
        }

        .page-banner h1 span {
            color: var(--accent-gold);
        }

        .page-banner .lead-banner {
            font-size: 1.1rem;
            color: var(--text-mint);
            max-width: 680px;
            position: relative;
            z-index: 1;
            line-height: 1.7;
        }

        /* ===== METRICS DASHBOARD ===== */
        .metrics-dashboard {
            padding: 48px 0 32px;
            background: var(--primary-bg);
        }

        .metric-card {
            background: linear-gradient(145deg, rgba(18, 62, 37, 0.8), rgba(10, 46, 28, 0.95));
            border: 1px solid var(--border-mint);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            text-align: left;
            transition: all 0.35s ease;
            height: 100%;
            position: relative;
            overflow: hidden;
        }

        .metric-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: linear-gradient(180deg, var(--accent-gold), transparent);
        }

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

        .metric-icon {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            background: rgba(255, 215, 0, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            font-size: 1.4rem;
            color: var(--accent-gold);
        }

        .metric-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-gold);
            line-height: 1.2;
            margin-bottom: 6px;
        }

        .metric-label {
            font-size: 0.9rem;
            color: var(--text-mint);
            font-weight: 500;
            margin-bottom: 4px;
        }

        .metric-desc {
            font-size: 0.8rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* ===== SECTION COMMON ===== */
        .section-block {
            padding: 56px 0;
        }

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

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

        .section-header .section-tag {
            display: inline-block;
            background: rgba(255, 215, 0, 0.1);
            color: var(--accent-gold);
            padding: 5px 14px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.8px;
            text-transform: uppercase;
            margin-bottom: 12px;
            border: 1px solid var(--border-gold);
        }

        .section-header h2 {
            font-size: 1.9rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .section-header p {
            color: var(--text-mint);
            font-size: 1rem;
            max-width: 720px;
            line-height: 1.7;
        }

        /* ===== PROMO SERVICE MATRIX ===== */
        .promo-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .promo-card {
            background: linear-gradient(145deg, rgba(18, 62, 37, 0.85), rgba(10, 46, 28, 0.95));
            border: 1px solid var(--border-mint);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            transition: all 0.35s ease;
            position: relative;
            overflow: hidden;
        }

        .promo-card::after {
            content: '';
            position: absolute;
            top: -50%;
            right: -30%;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(255, 215, 0, 0.06), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

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

        .promo-card .promo-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: rgba(255, 215, 0, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--accent-gold);
            margin-bottom: 18px;
        }

        .promo-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 10px;
        }

        .promo-card p {
            color: var(--text-mint);
            font-size: 0.92rem;
            line-height: 1.65;
            margin-bottom: 14px;
        }

        .promo-card .promo-tag {
            display: inline-block;
            background: rgba(211, 47, 47, 0.2);
            color: #FF6B6B;
            padding: 4px 12px;
            border-radius: 16px;
            font-size: 0.75rem;
            font-weight: 600;
            border: 1px solid rgba(211, 47, 47, 0.35);
        }

        .promo-card .promo-tag.gold {
            background: rgba(255, 215, 0, 0.15);
            color: var(--accent-gold);
            border-color: var(--border-gold);
        }

        /* ===== COMPARISON TABLE ===== */
        .comparison-wrapper {
            background: rgba(18, 62, 37, 0.6);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-mint);
            padding: 32px 28px;
            overflow-x: auto;
        }

        .comparison-table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            min-width: 720px;
        }

        .comparison-table thead th {
            background: rgba(255, 215, 0, 0.1);
            color: var(--accent-gold);
            font-weight: 700;
            font-size: 0.85rem;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            padding: 16px 20px;
            border-bottom: 2px solid var(--border-gold);
            text-align: left;
        }

        .comparison-table tbody td {
            padding: 18px 20px;
            border-bottom: 1px solid var(--border-mint);
            color: var(--text-mint);
            font-size: 0.92rem;
            vertical-align: middle;
        }

        .comparison-table tbody tr:last-child td {
            border-bottom: none;
        }

        .comparison-table tbody tr:hover td {
            background: rgba(255, 215, 0, 0.04);
        }

        .comparison-table .highlight-value {
            color: var(--accent-gold);
            font-weight: 700;
        }

        .comparison-table .check-icon {
            color: #4CAF50;
            font-size: 1.1rem;
        }

        .comparison-table .star-icon {
            color: var(--accent-gold);
        }

        /* ===== FAQ ===== */
        .faq-accordion .accordion-item {
            background: rgba(18, 62, 37, 0.7);
            border: 1px solid var(--border-mint);
            border-radius: var(--radius-sm) !important;
            margin-bottom: 14px;
            overflow: hidden;
        }

        .faq-accordion .accordion-button {
            background: transparent;
            color: var(--text-white);
            font-weight: 600;
            font-size: 1rem;
            padding: 20px 24px;
            border: none;
            box-shadow: none;
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            background: rgba(255, 215, 0, 0.08);
            color: var(--accent-gold);
            box-shadow: none;
        }

        .faq-accordion .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.2);
            outline: none;
        }

        .faq-accordion .accordion-button::after {
            background-image: none;
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            color: var(--accent-gold);
            font-size: 0.9rem;
        }

        .faq-accordion .accordion-body {
            color: var(--text-mint);
            font-size: 0.92rem;
            line-height: 1.7;
            padding: 0 24px 20px;
        }

        /* ===== CTA SECTION ===== */
        .cta-section {
            background: linear-gradient(135deg, #0F3D26 0%, #1A5C38 50%, #0A2E1C 100%);
            padding: 64px 0;
            position: relative;
            overflow: hidden;
            border-top: 1px solid var(--border-gold);
            border-bottom: 1px solid var(--border-gold);
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(255, 215, 0, 0.08), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-content {
            position: relative;
            z-index: 1;
            text-align: center;
        }

        .cta-content h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
        }

        .cta-content p {
            color: var(--text-mint);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }

        .btn-cta-primary {
            background: linear-gradient(135deg, #FFD700, #FFA500);
            color: #0A2E1C;
            font-weight: 700;
            padding: 14px 36px;
            border-radius: 30px;
            font-size: 1.05rem;
            border: none;
            box-shadow: 0 6px 28px rgba(255, 215, 0, 0.4);
            transition: all 0.35s ease;
        }

        .btn-cta-primary:hover {
            background: linear-gradient(135deg, #FFE44D, #FFB840);
            color: #0A2E1C;
            box-shadow: 0 10px 40px rgba(255, 215, 0, 0.55);
            transform: translateY(-3px);
        }

        /* ===== FOOTER ===== */
        .footer-custom {
            background: #081F14;
            padding: 56px 0 24px;
            border-top: 1px solid var(--border-mint);
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--accent-gold);
            margin-bottom: 16px;
        }

        .footer-brand i {
            font-size: 1.6rem;
            filter: drop-shadow(0 0 6px rgba(255, 215, 0, 0.4));
        }

        .footer-desc {
            color: var(--text-muted);
            font-size: 0.88rem;
            line-height: 1.7;
            margin-bottom: 20px;
        }

        .footer-social {
            display: flex;
            gap: 12px;
        }

        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 215, 0, 0.1);
            border: 1px solid var(--border-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-gold);
            font-size: 0.9rem;
            transition: all 0.3s ease;
        }

        .footer-social a:hover {
            background: var(--accent-gold);
            color: #0A2E1C;
            transform: translateY(-2px);
        }

        .footer-heading {
            color: var(--text-white);
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }

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

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

        .footer-links a {
            color: var(--text-muted);
            font-size: 0.88rem;
            transition: all 0.25s ease;
        }

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

        .footer-badge {
            display: inline-block;
            background: rgba(255, 215, 0, 0.08);
            border: 1px solid var(--border-mint);
            color: var(--text-mint);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 500;
            margin: 0 6px 8px 0;
            white-space: nowrap;
        }

        .footer-badge i {
            margin-right: 6px;
            color: var(--accent-gold);
        }

        .footer-bottom {
            margin-top: 40px;
            padding-top: 20px;
            border-top: 1px solid var(--border-mint);
            text-align: center;
        }

        .footer-bottom p {
            color: var(--text-muted);
            font-size: 0.8rem;
            margin-bottom: 4px;
        }

        /* ===== FAB ===== */
        .fab-floating {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 999;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(145deg, #1A1A1A, #0D0D0D);
            border: 2px solid var(--accent-gold);
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-gold);
            font-size: 1.3rem;
            cursor: pointer;
            opacity: 0.7;
            transition: all 0.35s ease;
            animation: fab-breathe 3s ease-in-out infinite;
        }

        .fab-floating:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 6px 30px rgba(255, 215, 0, 0.5);
        }

        .fab-floating:active {
            transform: scale(0.95);
            opacity: 1;
        }

        .fab-floating .notification-dot {
            position: absolute;
            top: 2px;
            right: 2px;
            width: 12px;
            height: 12px;
            background: #D32F2F;
            border-radius: 50%;
            border: 2px solid #0D0D0D;
            animation: dot-blink 1.5s ease-in-out infinite;
        }

        @keyframes fab-breathe {
            0%, 100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-4px);
            }
        }

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

        /* ===== RESPONSIVE ===== */
        @media (max-width: 1024px) {
            .page-banner h1 {
                font-size: 2.1rem;
            }
            .promo-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
        }

        @media (max-width: 768px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
            .navbar-custom {
                padding: 12px 0;
            }
            .navbar-brand-custom span {
                font-size: 1.05rem;
            }
            .page-banner {
                padding: 48px 0 40px;
            }
            .page-banner h1 {
                font-size: 1.8rem;
            }
            .page-banner .lead-banner {
                font-size: 1rem;
            }
            .section-block {
                padding: 40px 0;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .promo-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .promo-card {
                padding: 24px 20px;
            }
            .metric-card {
                padding: 22px 18px;
                margin-bottom: 14px;
            }
            .comparison-wrapper {
                padding: 20px 16px;
            }
            .cta-section {
                padding: 48px 0;
            }
            .cta-content h2 {
                font-size: 1.6rem;
            }
            .btn-login-nav, .btn-signup-nav {
                padding: 7px 14px;
                font-size: 0.8rem;
            }
            .fab-floating {
                left: 12px;
                bottom: 80px;
                width: 48px;
                height: 48px;
                font-size: 1.1rem;
            }
        }

        @media (max-width: 520px) {
            .page-banner h1 {
                font-size: 1.5rem;
            }
            .section-header h2 {
                font-size: 1.35rem;
            }
            .metric-number {
                font-size: 1.6rem;
            }
            .navbar-brand-custom span {
                display: none;
            }
            .navbar-brand-custom i {
                font-size: 1.8rem;
            }
            .btn-login-nav, .btn-signup-nav {
                padding: 6px 12px;
                font-size: 0.75rem;
            }
            .promo-card h3 {
                font-size: 1.05rem;
            }
        }

/* roulang page: category3 */
:root {
            --bg-primary: #0B1A30;
            --bg-secondary: #0F0C20;
            --bg-card: #111827;
            --accent-neon: #00F0FF;
            --accent-lime: #CCFF00;
            --text-primary: #FFFFFF;
            --text-secondary: #A6ACAF;
            --border-neon: rgba(0, 240, 255, 0.3);
            --shadow-neon: 0 0 15px rgba(0, 240, 255, 0.5);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --spacing-sm: 1rem;
            --spacing-md: 2rem;
            --spacing-lg: 4rem;
            --font-main: 'Segoe UI', system-ui, -apple-system, sans-serif;
        }

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

        body {
            font-family: var(--font-main);
            background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
            color: var(--text-primary);
            line-height: 1.6;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        .container-custom {
            width: min(1200px, 100% - 2rem);
            margin-inline: auto;
        }

        /* Header & Nav */
        .navbar-custom {
            background: rgba(11, 26, 48, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-neon);
            padding: 0.75rem 0;
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
        }

        .navbar-brand-custom {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--accent-neon);
            letter-spacing: 0.5px;
        }

        .navbar-brand-custom i {
            font-size: 1.6rem;
            color: var(--accent-lime);
            filter: drop-shadow(0 0 8px rgba(204, 255, 0, 0.6));
        }

        .navbar-brand-custom span {
            background: linear-gradient(90deg, #00F0FF, #CCFF00);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .navbar-toggler-custom {
            border: 1px solid var(--border-neon);
            color: var(--accent-neon);
            padding: 0.4rem 0.7rem;
            border-radius: var(--radius-sm);
            background: transparent;
            font-size: 1.2rem;
            transition: all 0.3s;
        }

        .navbar-toggler-custom:hover {
            background: rgba(0, 240, 255, 0.1);
            box-shadow: var(--shadow-neon);
        }

        .nav-link-custom {
            color: var(--text-secondary);
            font-weight: 500;
            padding: 0.5rem 1rem;
            border-radius: var(--radius-sm);
            transition: all 0.3s;
            position: relative;
        }

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

        .nav-link-custom.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 30px;
            height: 2px;
            background: var(--accent-lime);
            border-radius: 2px;
            box-shadow: 0 0 10px var(--accent-lime);
        }

        .btn-login-nav {
            color: var(--text-primary);
            font-weight: 600;
            padding: 0.5rem 1.2rem;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-neon);
            transition: all 0.3s;
        }

        .btn-login-nav:hover {
            background: rgba(0, 240, 255, 0.1);
            color: var(--accent-neon);
            box-shadow: var(--shadow-neon);
        }

        .btn-signup-nav {
            background: linear-gradient(135deg, #CCFF00, #00F0FF);
            color: #0B1A30;
            font-weight: 700;
            padding: 0.5rem 1.4rem;
            border-radius: var(--radius-sm);
            border: none;
            transition: all 0.3s;
            box-shadow: 0 4px 15px rgba(0, 240, 255, 0.3);
        }

        .btn-signup-nav:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(0, 240, 255, 0.5);
            color: #0B1A30;
        }

        /* Page Hero */
        .page-hero {
            background-image: linear-gradient(rgba(11, 26, 48, 0.85), rgba(15, 12, 32, 0.9)), url('/assets/images/backpic/back-3.jpg');
            background-size: cover;
            background-position: center;
            padding: 5rem 0 3.5rem;
            border-bottom: 1px solid var(--border-neon);
            position: relative;
            overflow: hidden;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(0, 240, 255, 0.2), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .breadcrumb-custom {
            display: flex;
            gap: 0.5rem;
            align-items: center;
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 1.5rem;
        }

        .breadcrumb-custom a {
            color: var(--accent-neon);
        }

        .breadcrumb-custom a:hover {
            text-decoration: underline;
        }

        .page-hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            background: linear-gradient(90deg, #FFFFFF, #CCFF00);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 1rem;
            max-width: 800px;
        }

        .page-hero .lead {
            font-size: 1.15rem;
            color: var(--text-secondary);
            max-width: 700px;
            margin-bottom: 2rem;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(204, 255, 0, 0.15);
            border: 1px solid rgba(204, 255, 0, 0.4);
            color: var(--accent-lime);
            padding: 0.4rem 1rem;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 1.5rem;
        }

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

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 0.8rem;
            color: var(--text-primary);
            letter-spacing: -0.5px;
        }

        .section-subtitle {
            color: var(--text-secondary);
            font-size: 1.05rem;
            max-width: 650px;
            margin-bottom: 2.5rem;
        }

        .divider-neon {
            width: 70px;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-neon), var(--accent-lime));
            border-radius: 3px;
            margin-bottom: 1.5rem;
            box-shadow: 0 0 12px rgba(0, 240, 255, 0.6);
        }

        /* Data Dashboard */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 1.5rem;
            margin-bottom: 2.5rem;
        }

        .metric-card {
            background: rgba(17, 24, 39, 0.8);
            border: 1px solid var(--border-neon);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            text-align: center;
            transition: all 0.3s;
            position: relative;
            overflow: hidden;
        }

        .metric-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-neon), var(--accent-lime));
        }

        .metric-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 12px 30px rgba(0, 240, 255, 0.2);
        }

        .metric-value {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--accent-neon);
            margin-bottom: 0.3rem;
        }

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

        /* Service Matrix */
        .service-matrix {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
        }

        .service-item {
            background: rgba(17, 24, 39, 0.7);
            border: 1px solid rgba(0, 240, 255, 0.15);
            border-radius: var(--radius-md);
            padding: 2rem;
            transition: all 0.3s;
            position: relative;
        }

        .service-item:hover {
            border-color: var(--accent-neon);
            box-shadow: 0 8px 25px rgba(0, 240, 255, 0.15);
        }

        .service-icon {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, rgba(0, 240, 255, 0.15), rgba(204, 255, 0, 0.15));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--accent-neon);
            margin-bottom: 1.2rem;
            border: 1px solid var(--border-neon);
        }

        .service-item h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 0.8rem;
            color: var(--text-primary);
        }

        .service-item p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            margin-bottom: 0;
        }

        /* Comparison Section */
        .comparison-card {
            background: rgba(17, 24, 39, 0.8);
            border: 1px solid var(--border-neon);
            border-radius: var(--radius-lg);
            padding: 2.5rem;
            position: relative;
            overflow: hidden;
        }

        .comparison-card::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -50%;
            width: 100%;
            height: 100%;
            background: radial-gradient(circle, rgba(0, 240, 255, 0.08), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .comparison-item {
            display: flex;
            align-items: flex-start;
            gap: 1rem;
            padding: 1rem 0;
            border-bottom: 1px solid rgba(0, 240, 255, 0.1);
        }

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

        .comparison-check {
            color: var(--accent-lime);
            font-size: 1.2rem;
            margin-top: 0.2rem;
            flex-shrink: 0;
        }

        .comparison-item h4 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 0.3rem;
        }

        .comparison-item p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            margin-bottom: 0;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .faq-item {
            background: rgba(17, 24, 39, 0.7);
            border: 1px solid rgba(0, 240, 255, 0.15);
            border-radius: var(--radius-sm);
            padding: 1.2rem 1.5rem;
            cursor: pointer;
            transition: all 0.3s;
        }

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

        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            color: var(--text-primary);
        }

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

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

        .faq-answer {
            color: var(--text-secondary);
            font-size: 0.95rem;
            margin-top: 0.8rem;
            display: none;
        }

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

        /* CTA Form */
        .cta-card {
            background: linear-gradient(135deg, rgba(0, 240, 255, 0.1), rgba(204, 255, 0, 0.08));
            border: 2px solid var(--border-neon);
            border-radius: var(--radius-lg);
            padding: 3rem;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80%;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--accent-neon), var(--accent-lime), transparent);
        }

        .cta-card h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 0.8rem;
        }

        .cta-card p {
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto 2rem;
        }

        .form-custom {
            max-width: 500px;
            margin: 0 auto;
        }

        .form-custom .form-control {
            background: rgba(15, 12, 32, 0.8);
            border: 1px solid var(--border-neon);
            color: var(--text-primary);
            border-radius: var(--radius-sm);
            padding: 0.8rem 1rem;
            margin-bottom: 1rem;
            transition: all 0.3s;
        }

        .form-custom .form-control:focus {
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.3);
            border-color: var(--accent-neon);
            background: rgba(15, 12, 32, 0.95);
            color: var(--text-primary);
        }

        .form-custom .form-control::placeholder {
            color: #5a6a7a;
        }

        .btn-cta-submit {
            background: linear-gradient(135deg, #CCFF00, #00F0FF);
            color: #0B1A30;
            font-weight: 700;
            padding: 0.9rem 2.5rem;
            border: none;
            border-radius: var(--radius-sm);
            font-size: 1.1rem;
            transition: all 0.3s;
            box-shadow: 0 4px 20px rgba(0, 240, 255, 0.4);
            width: 100%;
        }

        .btn-cta-submit:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(0, 240, 255, 0.6);
            color: #0B1A30;
        }

        /* Footer */
        .footer-custom {
            background: rgba(15, 12, 32, 0.9);
            border-top: 1px solid var(--border-neon);
            padding: 3.5rem 0 1.5rem;
            margin-top: 2rem;
        }

        .footer-brand {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--accent-neon);
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 1rem;
        }

        .footer-brand i {
            color: var(--accent-lime);
        }

        .footer-desc {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.7;
            margin-bottom: 1.2rem;
        }

        .footer-social {
            display: flex;
            gap: 0.8rem;
        }

        .footer-social a {
            width: 38px;
            height: 38px;
            border: 1px solid var(--border-neon);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-neon);
            transition: all 0.3s;
        }

        .footer-social a:hover {
            background: rgba(0, 240, 255, 0.1);
            box-shadow: var(--shadow-neon);
            transform: translateY(-3px);
        }

        .footer-heading {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 1.2rem;
            color: var(--text-primary);
        }

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

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

        .footer-links a {
            color: var(--text-secondary);
            font-size: 0.9rem;
            transition: color 0.3s;
        }

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

        .footer-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: rgba(0, 240, 255, 0.08);
            border: 1px solid var(--border-neon);
            color: var(--text-secondary);
            padding: 0.4rem 0.8rem;
            border-radius: 50px;
            font-size: 0.8rem;
            margin: 0 0.5rem 0.5rem 0;
            transition: all 0.3s;
        }

        .footer-badge i {
            color: var(--accent-lime);
        }

        .footer-badge:hover {
            background: rgba(0, 240, 255, 0.15);
            color: var(--text-primary);
        }

        .footer-copyright {
            text-align: center;
            color: #5a6a7a;
            font-size: 0.85rem;
            padding-top: 2rem;
            margin-top: 2rem;
            border-top: 1px solid rgba(0, 240, 255, 0.1);
        }

        /* FAB */
        .fab-floating {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 1050;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(15, 12, 32, 0.7);
            backdrop-filter: blur(10px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(15, 12, 32, 0.7), rgba(15, 12, 32, 0.7)), linear-gradient(135deg, var(--accent-lime), var(--accent-neon));
            background-origin: border-box;
            background-clip: padding-box, border-box;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--accent-neon);
            cursor: pointer;
            opacity: 0.7;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.5);
            transition: all 0.3s;
            animation: fabFloat 3s ease-in-out infinite;
        }

        .fab-floating:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 25px rgba(0, 240, 255, 0.7);
        }

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

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

        /* Responsive */
        @media (max-width: 991px) {
            .navbar-collapse {
                background: rgba(11, 26, 48, 0.98);
                border-radius: var(--radius-md);
                padding: 1.5rem;
                margin-top: 0.5rem;
                border: 1px solid var(--border-neon);
            }

            .page-hero h1 {
                font-size: 2.2rem;
            }

            .section-title {
                font-size: 1.7rem;
            }
        }

        @media (max-width: 768px) {
            .page-hero {
                padding: 3.5rem 0 2.5rem;
            }

            .page-hero h1 {
                font-size: 1.8rem;
            }

            .section-block {
                padding: 2.5rem 0;
            }

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

            .service-matrix {
                grid-template-columns: 1fr;
            }

            .comparison-card {
                padding: 1.5rem;
            }

            .cta-card {
                padding: 2rem 1.5rem;
            }

            .footer-custom {
                padding: 2.5rem 0 1rem;
            }
        }

        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 1.5rem;
            }

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

            .navbar-brand-custom {
                font-size: 1.1rem;
            }

            .btn-signup-nav,
            .btn-login-nav {
                padding: 0.4rem 0.8rem;
                font-size: 0.85rem;
            }

            .fab-floating {
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
                left: 0.75rem;
                bottom: 5rem;
            }
        }

/* roulang page: category2 */
:root {
            --bg-deep: #062315;
            --bg-forest: #0B3C25;
            --accent-sunny: #FFCC00;
            --accent-lime: #32CD32;
            --text-warm: #FFFDF0;
            --text-green: #C5E2D2;
            --border-soft: rgba(255, 204, 0, 0.25);
            --border-glow: rgba(255, 204, 0, 0.55);
            --shadow-card: 0 12px 28px rgba(0, 0, 0, 0.35);
            --shadow-glow: 0 0 24px rgba(255, 204, 0, 0.18);
            --radius-md: 18px;
            --radius-sm: 12px;
            --radius-lg: 26px;
            --font-base: 'Segoe UI', 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Roboto', sans-serif;
            --spacing-section: 5.5rem;
            --transition: all 0.25s ease;
        }
        * { box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-base);
            background-color: var(--bg-deep);
            color: var(--text-warm);
            line-height: 1.65;
            margin: 0;
            -webkit-font-smoothing: antialiased;
        }
        a { color: var(--accent-sunny); text-decoration: none; transition: var(--transition); }
        a:hover { color: #fff; text-decoration: none; }
        img { max-width: 100%; display: block; }
        .container-custom { max-width: 1240px; margin: 0 auto; padding: 0 24px; }

        /* Navbar */
        .navbar-custom {
            background: rgba(6, 35, 21, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            padding: 16px 0;
            border-bottom: 1px solid var(--border-soft);
            position: sticky;
            top: 0;
            z-index: 1030;
        }
        .navbar-brand-custom {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--accent-sunny);
            letter-spacing: -0.02em;
        }
        .navbar-brand-custom i {
            font-size: 1.9rem;
            color: var(--accent-lime);
        }
        .navbar-brand-custom span { color: var(--text-warm); }
        .nav-link-custom {
            color: var(--text-green);
            font-weight: 600;
            padding: 8px 16px;
            border-radius: 30px;
            margin: 0 2px;
            font-size: 0.95rem;
        }
        .nav-link-custom:hover { color: #fff; background: rgba(255, 204, 0, 0.08); }
        .nav-link-custom.active {
            color: var(--accent-sunny);
            background: rgba(255, 204, 0, 0.12);
            border: 1px solid var(--border-glow);
        }
        .btn-login-nav {
            color: var(--text-warm);
            font-weight: 700;
            padding: 10px 18px;
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: 30px;
            transition: var(--transition);
        }
        .btn-login-nav:hover { background: rgba(255, 255, 255, 0.08); color: #fff; }
        .btn-signup-nav {
            background: linear-gradient(135deg, var(--accent-sunny), #FFA500);
            color: #062315;
            font-weight: 800;
            padding: 10px 22px;
            border-radius: 30px;
            box-shadow: 0 4px 14px rgba(255, 204, 0, 0.35);
            transition: var(--transition);
        }
        .btn-signup-nav:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(255, 204, 0, 0.5); color: #062315; }
        .navbar-toggler-custom {
            border: 1px solid var(--border-soft);
            color: var(--accent-sunny);
            font-size: 1.5rem;
            padding: 6px 12px;
            border-radius: 10px;
            background: transparent;
        }

        /* Hero */
        .hero-guide {
            background: linear-gradient(135deg, rgba(6, 35, 21, 0.92), rgba(11, 60, 37, 0.95)), url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
            padding: 6rem 0 4.5rem;
            border-bottom: 1px solid var(--border-soft);
            position: relative;
            overflow: hidden;
        }
        .hero-guide::after {
            content: '';
            position: absolute;
            right: -80px;
            top: -80px;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(255, 204, 0, 0.2), transparent 70%);
            pointer-events: none;
        }
        .hero-badge {
            display: inline-block;
            background: rgba(255, 204, 0, 0.15);
            border: 1px solid var(--border-glow);
            color: var(--accent-sunny);
            font-weight: 700;
            padding: 8px 18px;
            border-radius: 30px;
            font-size: 0.9rem;
            margin-bottom: 1.5rem;
            letter-spacing: 0.02em;
        }
        .hero-guide h1 {
            font-size: 3.4rem;
            font-weight: 900;
            line-height: 1.15;
            letter-spacing: -0.03em;
            margin-bottom: 1.5rem;
            color: #fff;
            max-width: 850px;
        }
        .hero-guide h1 span { color: var(--accent-sunny); }
        .hero-desc {
            font-size: 1.2rem;
            color: var(--text-green);
            max-width: 720px;
            margin-bottom: 2rem;
        }
        .hero-stats {
            display: flex;
            gap: 2.5rem;
            flex-wrap: wrap;
            margin-top: 2rem;
        }
        .hero-stat-item strong {
            font-size: 2rem;
            color: var(--accent-sunny);
            display: block;
        }
        .hero-stat-item span {
            color: var(--text-green);
            font-size: 0.95rem;
        }

        /* Section common */
        .section-guide {
            padding: var(--spacing-section) 0;
        }
        .section-heading {
            font-size: 2.4rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 1rem;
            color: #fff;
        }
        .section-subheading {
            color: var(--text-green);
            font-size: 1.1rem;
            max-width: 680px;
            margin-bottom: 3rem;
        }

        /* Content panel */
        .guide-panel {
            background: rgba(11, 60, 37, 0.5);
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-lg);
            padding: 2.5rem;
            box-shadow: var(--shadow-card);
            backdrop-filter: blur(8px);
            height: 100%;
        }
        .guide-panel h3 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--accent-sunny);
            margin-bottom: 1rem;
        }
        .guide-panel p {
            color: var(--text-green);
            margin-bottom: 0;
        }
        .guide-list {
            list-style: none;
            padding: 0;
            margin: 1.5rem 0 0;
        }
        .guide-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            margin-bottom: 12px;
            color: var(--text-green);
        }
        .guide-list i {
            color: var(--accent-lime);
            font-size: 1.2rem;
            margin-top: 3px;
        }

        /* Step timeline */
        .step-flow {
            display: flex;
            flex-direction: column;
            gap: 2rem;
            counter-reset: step;
        }
        .step-item {
            display: flex;
            gap: 1.5rem;
            align-items: flex-start;
            background: rgba(11, 60, 37, 0.4);
            border-radius: var(--radius-md);
            padding: 1.5rem 2rem;
            border-left: 4px solid var(--accent-sunny);
        }
        .step-number {
            font-size: 2rem;
            font-weight: 900;
            color: var(--accent-sunny);
            min-width: 48px;
            line-height: 1;
        }
        .step-content h4 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            color: #fff;
        }
        .step-content p { color: var(--text-green); margin-bottom: 0; }

        /* Table comparison */
        .compare-table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            background: rgba(11, 60, 37, 0.45);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .compare-table th {
            background: rgba(255, 204, 0, 0.12);
            color: var(--accent-sunny);
            font-weight: 700;
            padding: 16px 20px;
            text-align: left;
            border-bottom: 1px solid var(--border-soft);
        }
        .compare-table td {
            padding: 16px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            color: var(--text-green);
        }
        .compare-table tr:last-child td { border-bottom: none; }
        .compare-table td:first-child { font-weight: 700; color: #fff; }

        /* CTA */
        .cta-guide {
            background: linear-gradient(135deg, #FFCC00, #FFA500);
            border-radius: var(--radius-lg);
            padding: 3.5rem 3rem;
            color: #062315;
            box-shadow: 0 20px 40px rgba(255, 204, 0, 0.25);
            position: relative;
            overflow: hidden;
        }
        .cta-guide h2 {
            font-weight: 900;
            font-size: 2.4rem;
            letter-spacing: -0.02em;
            margin-bottom: 1rem;
        }
        .cta-guide p {
            font-size: 1.1rem;
            font-weight: 500;
            margin-bottom: 2rem;
            max-width: 600px;
        }
        .btn-cta-primary {
            background: #062315;
            color: var(--accent-sunny);
            font-weight: 800;
            padding: 14px 32px;
            border-radius: 40px;
            border: none;
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .btn-cta-primary:hover { background: #0B3C25; color: #fff; transform: translateY(-2px); }

        /* FAQ */
        .faq-item {
            background: rgba(11, 60, 37, 0.5);
            border-radius: var(--radius-md);
            margin-bottom: 1rem;
            overflow: hidden;
            border: 1px solid var(--border-soft);
        }
        .faq-item .accordion-button {
            background: transparent;
            color: var(--text-warm);
            font-weight: 700;
            padding: 1.2rem 1.5rem;
            box-shadow: none;
            border: none;
        }
        .faq-item .accordion-button:not(.collapsed) {
            background: rgba(255, 204, 0, 0.08);
            color: var(--accent-sunny);
        }
        .faq-item .accordion-button:focus { box-shadow: none; }
        .faq-item .accordion-body {
            color: var(--text-green);
            padding: 0 1.5rem 1.5rem;
        }

        /* FAB */
        .fab-guide {
            position: fixed;
            left: 1.2rem;
            bottom: 5.5rem;
            z-index: 1050;
            background: rgba(6, 35, 21, 0.85);
            backdrop-filter: blur(12px);
            border: 2px solid var(--accent-sunny);
            border-radius: 50%;
            width: 56px;
            height: 56px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 20px rgba(255, 204, 0, 0.3);
            opacity: 0.7;
            transition: var(--transition);
            color: var(--accent-sunny);
            font-size: 1.4rem;
        }
        .fab-guide:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 8px 28px rgba(255, 204, 0, 0.5);
            color: #fff;
        }
        .fab-guide:active { transform: scale(0.95); }
        .fab-guide .notification-dot {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 16px;
            height: 16px;
            background: #FF4500;
            border-radius: 50%;
            border: 2px solid #062315;
        }

        /* Footer */
        .footer-custom {
            background: rgba(4, 20, 12, 0.9);
            padding: 4rem 0 2rem;
            border-top: 1px solid var(--border-soft);
            margin-top: 3rem;
        }
        .footer-brand {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--accent-sunny);
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 1rem;
        }
        .footer-brand i { color: var(--accent-lime); }
        .footer-desc {
            color: var(--text-green);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .footer-heading {
            color: var(--accent-sunny);
            font-weight: 700;
            margin-bottom: 1.2rem;
            font-size: 1.1rem;
        }
        .footer-links {
            list-style: none;
            padding: 0;
        }
        .footer-links li { margin-bottom: 10px; }
        .footer-links a { color: var(--text-green); font-weight: 500; }
        .footer-links a:hover { color: var(--accent-sunny); }
        .footer-badge {
            display: inline-block;
            background: rgba(255, 204, 0, 0.1);
            border: 1px solid var(--border-soft);
            color: var(--text-green);
            border-radius: 20px;
            padding: 6px 14px;
            margin: 0 6px 10px 0;
            font-size: 0.85rem;
            font-weight: 600;
        }
        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-green);
            margin-right: 10px;
            transition: var(--transition);
        }
        .footer-social a:hover { background: var(--accent-sunny); color: #062315; transform: translateY(-3px); }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 2.5rem;
            padding-top: 1.5rem;
            color: rgba(197, 226, 210, 0.7);
            font-size: 0.9rem;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 1rem;
        }
        .footer-bottom a { color: rgba(197, 226, 210, 0.7); }
        .footer-bottom a:hover { color: var(--accent-sunny); }

        /* Responsive */
        @media (max-width: 991.98px) {
            .hero-guide h1 { font-size: 2.6rem; }
            .section-heading { font-size: 2rem; }
            .cta-guide h2 { font-size: 1.9rem; }
        }
        @media (max-width: 767.98px) {
            .hero-guide { padding: 4rem 0 3rem; }
            .hero-guide h1 { font-size: 2.1rem; }
            .hero-desc { font-size: 1rem; }
            .guide-panel { padding: 1.5rem; }
            .step-item { flex-direction: column; gap: 0.8rem; padding: 1.2rem; }
            .cta-guide { padding: 2rem 1.5rem; }
            .cta-guide h2 { font-size: 1.6rem; }
            .navbar-brand-custom span { display: none; }
            .navbar-brand-custom i { font-size: 1.6rem; }
        }
        @media (max-width: 575.98px) {
            .hero-stats { gap: 1.2rem; }
            .hero-stat-item strong { font-size: 1.5rem; }
            .compare-table th, .compare-table td { padding: 10px 12px; font-size: 0.85rem; }
        }