/* roulang page: index */
:root {
            --green-deep: #0A2E1C;
            --green-forest: #123E25;
            --green-mid: #1B5E34;
            --green-soft: #2A7A47;
            --gold: #FFD700;
            --gold-amber: #FFC107;
            --gold-deep: #E6B800;
            --red: #D32F2F;
            --red-soft: #EF5350;
            --white: #FFFFFF;
            --mint: #D1F2EB;
            --mint-dim: #A8D5CB;
            --text-warm: #F5F5F7;
            --text-soft: rgba(255,255,255,0.82);
            --text-muted: rgba(255,255,255,0.58);
            --border-gold: rgba(255,215,0,0.35);
            --border-gold-strong: rgba(255,215,0,0.65);
            --shadow-card: 0 12px 32px rgba(0,0,0,0.35);
            --shadow-btn: 0 8px 24px rgba(255,215,0,0.25);
            --shadow-glow: 0 0 24px rgba(255,215,0,0.35);
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 22px;
            --radius-xl: 28px;
            --space-section: 5.5rem;
            --space-section-mobile: 3.5rem;
            --font-body: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            --font-display: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-body);
            background: var(--green-deep);
            color: var(--text-warm);
            line-height: 1.62;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--gold);
            text-decoration: none;
            transition: color 0.25s ease, background 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
        }

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

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

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

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 3px solid rgba(255,215,0,0.7);
            outline-offset: 2px;
        }

        .container-custom {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        .section-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255,215,0,0.12);
            color: var(--gold);
            border: 1px solid var(--border-gold);
            border-radius: 999px;
            padding: 0.4rem 1rem;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            margin-bottom: 1rem;
        }

        .section-badge i {
            font-size: 0.75rem;
        }

        .section-title {
            font-size: 2.15rem;
            font-weight: 700;
            color: var(--white);
            line-height: 1.25;
            margin-bottom: 0.8rem;
            letter-spacing: -0.02em;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-soft);
            max-width: 700px;
            margin-bottom: 2.5rem;
        }

        .btn-custom {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.6rem;
            border-radius: 999px;
            padding: 0.8rem 1.8rem;
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: all 0.3s ease;
            white-space: nowrap;
        }

        .btn-gold {
            background: linear-gradient(135deg, var(--gold) 0%, var(--gold-amber) 50%, var(--gold-deep) 100%);
            color: #1A1A1A;
            box-shadow: var(--shadow-btn);
        }

        .btn-gold:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(255,215,0,0.4);
            color: #0A0A0A;
        }

        .btn-gold:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(255,215,0,0.25);
        }

        .btn-outline-gold {
            background: transparent;
            color: var(--gold);
            border: 2px solid var(--border-gold-strong);
        }

        .btn-outline-gold:hover {
            background: rgba(255,215,0,0.1);
            border-color: var(--gold);
            color: var(--gold);
            transform: translateY(-2px);
        }

        .btn-red {
            background: linear-gradient(135deg, #E53935 0%, #D32F2F 100%);
            color: #fff;
            box-shadow: 0 8px 24px rgba(211,47,47,0.35);
        }

        .btn-red:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(211,47,47,0.5);
            color: #fff;
        }

        .btn-sm {
            padding: 0.55rem 1.3rem;
            font-size: 0.86rem;
        }

        .btn-lg {
            padding: 0.95rem 2.2rem;
            font-size: 1.02rem;
        }

        /* ========== NAVBAR ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: rgba(10,46,28,0.95);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(255,215,0,0.18);
            padding: 0.6rem 0;
            transition: all 0.35s ease;
        }

        .site-header.scrolled {
            background: rgba(10,46,28,0.98);
            box-shadow: 0 6px 28px rgba(0,0,0,0.45);
        }

        .navbar-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1.2rem;
            width: 100%;
        }

        .navbar-brand-custom {
            display: flex;
            align-items: center;
            gap: 0.65rem;
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--white);
            letter-spacing: -0.01em;
            transition: color 0.25s ease;
        }

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

        .brand-icon {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--gold), var(--gold-amber));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0A2E1C;
            font-size: 1.25rem;
            font-weight: 700;
            flex-shrink: 0;
            box-shadow: 0 0 16px rgba(255,215,0,0.45);
        }

        .nav-links-desktop {
            display: flex;
            align-items: center;
            gap: 1.8rem;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links-desktop a {
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--mint-dim);
            padding: 0.4rem 0;
            position: relative;
            transition: color 0.25s ease;
        }

        .nav-links-desktop a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--gold);
            border-radius: 2px;
            transition: width 0.3s ease;
        }

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

        .nav-links-desktop a:hover::after,
        .nav-links-desktop a.active::after {
            width: 100%;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.7rem;
        }

        .btn-login {
            background: transparent;
            color: var(--mint);
            border: none;
            font-weight: 600;
            font-size: 0.9rem;
            padding: 0.55rem 1.1rem;
            border-radius: 999px;
            cursor: pointer;
            transition: all 0.25s ease;
        }

        .btn-login:hover {
            color: var(--gold);
            background: rgba(255,215,0,0.08);
        }

        .btn-signup {
            background: linear-gradient(135deg, var(--gold), var(--gold-amber));
            color: #0A2E1C;
            font-weight: 700;
            font-size: 0.88rem;
            padding: 0.55rem 1.4rem;
            border-radius: 999px;
            border: none;
            cursor: pointer;
            box-shadow: 0 4px 16px rgba(255,215,0,0.35);
            transition: all 0.3s ease;
            white-space: nowrap;
        }

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

        .navbar-toggler-custom {
            display: none;
            background: transparent;
            border: 1px solid var(--border-gold);
            border-radius: 8px;
            padding: 0.5rem 0.7rem;
            color: var(--gold);
            font-size: 1.2rem;
            cursor: pointer;
            transition: all 0.25s ease;
        }

        .navbar-toggler-custom:hover {
            background: rgba(255,215,0,0.1);
        }

        .mobile-menu {
            display: none;
            flex-direction: column;
            gap: 0.3rem;
            padding: 1rem 0 0.8rem;
            border-top: 1px solid rgba(255,215,0,0.15);
            margin-top: 0.6rem;
        }

        .mobile-menu a {
            color: var(--mint);
            padding: 0.65rem 0.8rem;
            border-radius: 8px;
            font-size: 0.95rem;
            font-weight: 500;
            transition: all 0.25s ease;
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            color: var(--gold);
            background: rgba(255,215,0,0.08);
        }

        .mobile-menu .nav-actions-mobile {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            margin-top: 0.5rem;
            padding: 0 0.8rem;
        }

        /* ========== HERO ========== */
        .hero-section {
            padding-top: 8rem;
            padding-bottom: 4.5rem;
            background:
                linear-gradient(180deg, rgba(10,46,28,0.75) 0%, rgba(10,46,28,0.88) 40%, var(--green-deep) 100%),
                url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            position: relative;
            overflow: hidden;
            min-height: 100vh;
            display: flex;
            align-items: center;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(ellipse at 30% 20%, rgba(255,215,0,0.12) 0%, transparent 55%),
                        radial-gradient(ellipse at 75% 70%, rgba(27,94,52,0.55) 0%, transparent 60%);
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 1;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 3rem;
            align-items: center;
        }

        .hero-text h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--white);
            line-height: 1.22;
            letter-spacing: -0.02em;
            margin-bottom: 1.2rem;
        }

        .hero-text h1 .highlight {
            color: var(--gold);
            position: relative;
        }

        .hero-subtitle {
            font-size: 1.1rem;
            color: var(--mint);
            max-width: 560px;
            margin-bottom: 1.8rem;
            line-height: 1.65;
        }

        .hero-ctas {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.9rem;
            margin-bottom: 2rem;
        }

        .hero-datapoints {
            display: flex;
            flex-wrap: wrap;
            gap: 1.8rem;
            padding-top: 1.4rem;
            border-top: 1px solid rgba(255,215,0,0.2);
        }

        .hero-datapoint {
            display: flex;
            flex-direction: column;
        }

        .hero-datapoint strong {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--gold);
            line-height: 1.2;
        }

        .hero-datapoint span {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* Referral card */
        .referral-card {
            background: linear-gradient(160deg, rgba(18,62,37,0.92) 0%, rgba(10,46,28,0.88) 100%);
            border: 1.5px solid var(--border-gold-strong);
            border-radius: var(--radius-lg);
            padding: 2rem 1.8rem;
            box-shadow: 0 18px 48px rgba(0,0,0,0.4), 0 0 30px rgba(255,215,0,0.12);
            position: relative;
            overflow: hidden;
        }

        .referral-card::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -30%;
            width: 220px;
            height: 220px;
            background: radial-gradient(circle, rgba(255,215,0,0.18) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .referral-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.45rem;
            background: rgba(255,215,0,0.15);
            color: var(--gold);
            border-radius: 999px;
            padding: 0.35rem 0.9rem;
            font-size: 0.78rem;
            font-weight: 600;
            margin-bottom: 1rem;
        }

        .referral-title {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 0.5rem;
        }

        .referral-desc {
            font-size: 0.92rem;
            color: var(--mint);
            margin-bottom: 1.4rem;
        }

        .referral-progress-wrap {
            margin-bottom: 1.2rem;
        }

        .referral-progress-label {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.85rem;
            color: var(--mint);
            margin-bottom: 0.45rem;
        }

        .referral-progress-label strong {
            color: var(--gold);
            font-weight: 700;
        }

        .progress {
            height: 10px;
            background: rgba(255,255,255,0.1);
            border-radius: 999px;
            overflow: hidden;
        }

        .progress-bar-custom {
            height: 100%;
            background: linear-gradient(90deg, var(--gold), var(--gold-amber), var(--gold-deep));
            border-radius: 999px;
            width: 0%;
            transition: width 0.8s ease;
        }

        .referral-rewards {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            margin: 1rem 0 1.4rem;
        }

        .referral-reward {
            background: rgba(255,255,255,0.06);
            border: 1px solid rgba(255,215,0,0.22);
            border-radius: 10px;
            padding: 0.55rem 0.9rem;
            font-size: 0.82rem;
            color: var(--mint);
            display: flex;
            align-items: center;
            gap: 0.45rem;
        }

        .referral-reward i {
            color: var(--gold);
            font-size: 0.75rem;
        }

        /* ========== METRICS ========== */
        .metrics-section {
            padding: var(--space-section) 0;
            background: var(--green-deep);
            position: relative;
        }

        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.2rem;
        }

        .metric-card {
            background: linear-gradient(160deg, var(--green-forest) 0%, rgba(18,62,37,0.72) 100%);
            border: 1px solid rgba(255,215,0,0.22);
            border-radius: var(--radius-md);
            padding: 1.6rem 1.4rem;
            text-align: left;
            transition: all 0.35s ease;
            position: relative;
            overflow: hidden;
        }

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

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

        .metric-icon {
            width: 46px;
            height: 46px;
            border-radius: 12px;
            background: rgba(255,215,0,0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--gold);
            font-size: 1.25rem;
            margin-bottom: 1rem;
        }

        .metric-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--gold);
            line-height: 1.15;
        }

        .metric-label {
            font-size: 0.9rem;
            color: var(--text-soft);
            margin-top: 0.25rem;
        }

        /* ========== FEATURES ========== */
        .features-section {
            padding: var(--space-section) 0;
            background: linear-gradient(180deg, var(--green-deep) 0%, var(--green-forest) 100%);
            position: relative;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem;
            margin-top: 1rem;
        }

        .feature-card {
            display: flex;
            align-items: flex-start;
            gap: 1.3rem;
            background: rgba(255,255,255,0.04);
            border: 1px solid rgba(255,215,0,0.18);
            border-radius: var(--radius-md);
            padding: 1.8rem;
            transition: all 0.35s ease;
        }

        .feature-card:hover {
            border-color: var(--border-gold-strong);
            background: rgba(255,215,0,0.06);
            box-shadow: var(--shadow-card);
            transform: translateY(-4px);
        }

        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: linear-gradient(135deg, rgba(255,215,0,0.2) 0%, rgba(255,193,7,0.12) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--gold);
            font-size: 1.45rem;
            flex-shrink: 0;
        }

        .feature-card h3 {
            font-size: 1.18rem;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 0.5rem;
        }

        .feature-card p {
            font-size: 0.93rem;
            color: var(--text-soft);
            margin: 0;
        }

        /* ========== DOWNLOAD STEPS ========== */
        .steps-section {
            padding: var(--space-section) 0;
            background: var(--green-deep);
            position: relative;
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.8rem;
            margin-top: 1rem;
        }

        .step-card {
            position: relative;
            background: rgba(255,255,255,0.03);
            border: 1px solid rgba(255,215,0,0.2);
            border-radius: var(--radius-md);
            padding: 2rem 1.6rem;
            transition: all 0.35s ease;
        }

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

        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--gold), var(--gold-deep));
            color: #0A2E1C;
            font-weight: 800;
            font-size: 1.1rem;
            margin-bottom: 1.1rem;
            box-shadow: 0 0 18px rgba(255,215,0,0.35);
        }

        .step-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 0.5rem;
        }

        .step-card p {
            font-size: 0.92rem;
            color: var(--text-soft);
            margin: 0;
        }

        .step-os-btns {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
            margin-top: 1.1rem;
        }

        .os-btn {
            display: inline-flex;
            align-items: center;
            gap: 0.45rem;
            background: rgba(255,255,255,0.07);
            border: 1px solid rgba(255,215,0,0.25);
            border-radius: 8px;
            padding: 0.4rem 0.8rem;
            font-size: 0.8rem;
            color: var(--mint);
            cursor: pointer;
            transition: all 0.25s ease;
        }

        .os-btn:hover {
            border-color: var(--gold);
            color: var(--gold);
            background: rgba(255,215,0,0.08);
        }

        .os-btn i {
            font-size: 0.85rem;
        }

        /* ========== TESTIMONIALS ========== */
        .testimonials-section {
            padding: var(--space-section) 0;
            background: linear-gradient(180deg, var(--green-deep) 0%, var(--green-forest) 100%);
            position: relative;
        }

        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
            margin-top: 1rem;
        }

        .testimonial-card {
            background: rgba(255,255,255,0.04);
            border: 1px solid rgba(255,215,0,0.2);
            border-radius: var(--radius-md);
            padding: 1.8rem;
            transition: all 0.35s ease;
            display: flex;
            flex-direction: column;
        }

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

        .testimonial-rating {
            color: var(--gold);
            font-size: 0.88rem;
            margin-bottom: 0.9rem;
            letter-spacing: 0.15em;
        }

        .testimonial-quote {
            font-size: 0.95rem;
            color: var(--text-warm);
            line-height: 1.65;
            margin-bottom: 1.4rem;
            flex-grow: 1;
        }

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

        .testimonial-avatar {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--green-soft), var(--green-mid));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--gold);
            font-size: 0.95rem;
            flex-shrink: 0;
            border: 2px solid rgba(255,215,0,0.4);
        }

        .testimonial-name {
            font-size: 0.92rem;
            font-weight: 700;
            color: var(--white);
        }

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

        /* ========== NEWS ========== */
        .news-section {
            padding: var(--space-section) 0;
            background: var(--green-deep);
            position: relative;
        }

        .news-layout {
            display: grid;
            grid-template-columns: 1.3fr 0.7fr;
            gap: 2rem;
            margin-top: 1rem;
        }

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

        .news-item {
            display: block;
            background: rgba(255,255,255,0.04);
            border: 1px solid rgba(255,215,0,0.16);
            border-radius: 12px;
            padding: 1.2rem 1.4rem;
            transition: all 0.3s ease;
        }

        .news-item:hover {
            border-color: var(--border-gold-strong);
            background: rgba(255,215,0,0.06);
            box-shadow: 0 6px 20px rgba(0,0,0,0.25);
            transform: translateX(4px);
        }

        .news-item h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 0.35rem;
        }

        .news-item p {
            font-size: 0.88rem;
            color: var(--text-soft);
            margin: 0 0 0.5rem;
            line-height: 1.5;
        }

        .news-meta {
            display: flex;
            align-items: center;
            gap: 0.8rem;
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        .news-meta .news-category {
            background: rgba(255,215,0,0.1);
            color: var(--gold);
            padding: 0.18rem 0.6rem;
            border-radius: 6px;
            font-weight: 600;
        }

        .news-right-recs {
            display: flex;
            flex-direction: column;
            gap: 1.2rem;
        }

        .news-recommend-card {
            display: flex;
            gap: 1rem;
            background: rgba(255,255,255,0.04);
            border: 1px solid rgba(255,215,0,0.16);
            border-radius: 12px;
            padding: 0.9rem;
            transition: all 0.3s ease;
        }

        .news-recommend-card:hover {
            border-color: var(--border-gold-strong);
            box-shadow: var(--shadow-card);
        }

        .news-recommend-card img {
            width: 90px;
            height: 68px;
            object-fit: cover;
            border-radius: 8px;
            flex-shrink: 0;
        }

        .news-recommend-info h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 0.25rem;
        }

        .news-recommend-info span {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        .news-empty {
            padding: 2rem;
            text-align: center;
            color: var(--text-muted);
            background: rgba(255,255,255,0.03);
            border-radius: 12px;
            border: 1px dashed rgba(255,215,0,0.25);
        }

        /* ========== FAQ ========== */
        .faq-section {
            padding: var(--space-section) 0;
            background: linear-gradient(180deg, var(--green-deep) 0%, var(--green-forest) 100%);
            position: relative;
        }

        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: rgba(255,255,255,0.04);
            border: 1px solid rgba(255,215,0,0.18);
            border-radius: 12px;
            margin-bottom: 0.8rem;
            transition: all 0.3s ease;
        }

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

        .faq-question {
            width: 100%;
            background: transparent;
            border: none;
            color: var(--white);
            font-size: 1rem;
            font-weight: 600;
            padding: 1.15rem 1.4rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            text-align: left;
            transition: color 0.25s ease;
        }

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

        .faq-question .faq-toggle-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(255,215,0,0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--gold);
            font-size: 0.85rem;
            transition: transform 0.3s ease;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 1.4rem;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding-bottom: 1.3rem;
        }

        .faq-answer p {
            font-size: 0.92rem;
            color: var(--text-soft);
            margin: 0;
            line-height: 1.65;
        }

        /* ========== CTA FORM ========== */
        .cta-section {
            padding: var(--space-section) 0;
            background: var(--green-deep);
            position: relative;
        }

        .cta-wrapper {
            background: linear-gradient(160deg, var(--green-forest) 0%, rgba(18,62,37,0.85) 100%);
            border: 1.5px solid var(--border-gold-strong);
            border-radius: var(--radius-xl);
            padding: 2.8rem 2.5rem;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2.5rem;
            align-items: center;
            position: relative;
            overflow: hidden;
        }

        .cta-wrapper::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255,215,0,0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-text h2 {
            font-size: 1.9rem;
            font-weight: 800;
            color: var(--white);
            margin-bottom: 0.7rem;
        }

        .cta-text p {
            font-size: 1rem;
            color: var(--mint);
            margin-bottom: 1.2rem;
            line-height: 1.6;
        }

        .cta-benefits {
            display: flex;
            flex-wrap: wrap;
            gap: 0.7rem;
            margin-bottom: 1rem;
        }

        .cta-benefit {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.85rem;
            color: var(--mint);
            background: rgba(255,255,255,0.06);
            padding: 0.4rem 0.8rem;
            border-radius: 8px;
        }

        .cta-benefit i {
            color: var(--gold);
            font-size: 0.75rem;
        }

        .cta-form-card {
            background: rgba(255,255,255,0.06);
            border: 1px solid rgba(255,215,0,0.25);
            border-radius: var(--radius-md);
            padding: 1.8rem;
            position: relative;
            z-index: 1;
        }

        .cta-form-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 1.2rem;
        }

        .form-group-custom {
            margin-bottom: 1rem;
        }

        .form-group-custom label {
            display: block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--mint);
            margin-bottom: 0.4rem;
        }

        .form-control-custom {
            width: 100%;
            background: rgba(255,255,255,0.08);
            border: 1px solid rgba(255,215,0,0.3);
            border-radius: 10px;
            padding: 0.7rem 1rem;
            color: var(--white);
            font-size: 0.92rem;
            transition: all 0.3s ease;
        }

        .form-control-custom::placeholder {
            color: rgba(255,255,255,0.4);
        }

        .form-control-custom:focus {
            outline: none;
            border-color: var(--gold);
            background: rgba(255,255,255,0.12);
            box-shadow: 0 0 0 3px rgba(255,215,0,0.15);
        }

        .form-privacy {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-top: 0.8rem;
            text-align: left;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #071F13;
            border-top: 2px solid rgba(255,215,0,0.25);
            padding: 3.5rem 0 1.8rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }

        .footer-brand .navbar-brand-custom {
            margin-bottom: 0.8rem;
        }

        .footer-brand p {
            font-size: 0.88rem;
            color: var(--text-muted);
            max-width: 280px;
            line-height: 1.6;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--gold);
            margin-bottom: 1.1rem;
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }

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

        .footer-col ul li {
            margin-bottom: 0.55rem;
        }

        .footer-col ul a {
            font-size: 0.88rem;
            color: var(--text-soft);
            transition: color 0.25s ease;
        }

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

        .footer-payment {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
            margin-top: 1rem;
        }

        .payment-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: rgba(255,255,255,0.08);
            border: 1px solid rgba(255,255,255,0.15);
            border-radius: 8px;
            padding: 0.4rem 0.75rem;
            font-size: 0.78rem;
            color: var(--mint);
            font-weight: 600;
        }

        .payment-badge i {
            font-size: 0.9rem;
            color: var(--gold);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255,215,0,0.15);
            padding-top: 1.5rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
        }

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

        .footer-trust {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 1rem;
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        .badge-18 {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: #D32F2F;
            color: #fff;
            font-weight: 800;
            font-size: 0.9rem;
            border: 2px solid #fff;
            flex-shrink: 0;
        }

        .license-text {
            font-size: 0.78rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }

        /* ========== FAB ========== */
        .fab-support {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 1060;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, #1A1A1A 0%, #2A2A2A 100%);
            border: 3px solid var(--gold);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--gold);
            font-size: 1.35rem;
            cursor: pointer;
            box-shadow: 0 4px 20px rgba(255,215,0,0.3);
            opacity: 0.7;
            transition: all 0.35s ease;
            animation: fab-breathe 2.5s ease-in-out infinite;
            text-decoration: none;
        }

        .fab-support:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 32px rgba(255,215,0,0.55);
            color: var(--gold);
            animation-play-state: paused;
        }

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

        .fab-support .fab-notification {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: #D32F2F;
            border: 2px solid #fff;
            animation: fab-blink 1.2s ease-in-out infinite;
        }

        @keyframes fab-breathe {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }

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

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .hero-text h1 {
                font-size: 2.2rem;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .testimonials-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cta-wrapper {
                grid-template-columns: 1fr;
                padding: 2rem 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            :root {
                --space-section: 3.5rem;
            }
            .nav-links-desktop {
                display: none;
            }
            .navbar-toggler-custom {
                display: flex;
                align-items: center;
                justify-content: center;
            }
            .mobile-menu.show {
                display: flex;
            }
            .hero-section {
                padding-top: 7rem;
                padding-bottom: 3rem;
                min-height: auto;
            }
            .hero-text h1 {
                font-size: 1.75rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .hero-datapoints {
                gap: 1.2rem;
            }
            .section-title {
                font-size: 1.65rem;
            }
            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 0.8rem;
            }
            .metric-card {
                padding: 1.2rem 1rem;
            }
            .metric-number {
                font-size: 1.5rem;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .testimonials-grid {
                grid-template-columns: 1fr;
            }
            .news-layout {
                grid-template-columns: 1fr;
            }
            .news-right-recs {
                flex-direction: row;
                flex-wrap: wrap;
            }
            .news-recommend-card {
                flex: 1 1 240px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .fab-support {
                width: 50px;
                height: 50px;
                bottom: 4.5rem;
                left: 0.8rem;
                font-size: 1.15rem;
            }
        }

        @media (max-width: 520px) {
            .hero-text h1 {
                font-size: 1.5rem;
            }
            .hero-ctas {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-ctas .btn-custom {
                width: 100%;
            }
            .hero-datapoints {
                flex-direction: column;
                gap: 0.7rem;
            }
            .metrics-grid {
                grid-template-columns: 1fr;
            }
            .referral-card {
                padding: 1.5rem 1.2rem;
            }
            .cta-wrapper {
                padding: 1.6rem 1.2rem;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .navbar-brand-custom {
                font-size: 0.95rem;
            }
            .brand-icon {
                width: 34px;
                height: 34px;
                font-size: 1rem;
            }
            .btn-signup {
                padding: 0.5rem 1rem;
                font-size: 0.8rem;
            }
            .btn-login {
                padding: 0.5rem 0.8rem;
                font-size: 0.82rem;
            }
        }

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

/* roulang page: article */
:root {
            --bg-primary: #0A2E1C;
            --bg-secondary: #123E25;
            --bg-card: #10331f;
            --bg-dark: #071F13;
            --accent-gold: #FFD700;
            --accent-amber: #FFBF00;
            --accent-red: #D32F2F;
            --text-white: #FFFFFF;
            --text-pale: #D1F2EB;
            --text-muted: #8FBFAB;
            --text-gold: #FFD700;
            --border-gold: rgba(255, 215, 0, 0.35);
            --border-subtle: rgba(255, 215, 0, 0.15);
            --radius-lg: 1.25rem;
            --radius-md: 0.85rem;
            --radius-sm: 0.55rem;
            --shadow-card: 0 8px 28px rgba(0, 0, 0, 0.35);
            --shadow-gold: 0 0 20px rgba(255, 215, 0, 0.15);
            --shadow-btn: 0 6px 18px rgba(255, 215, 0, 0.25);
            --font-family: 'Be Vietnam Pro', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --header-height: 68px;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

        a {
            color: var(--accent-gold);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover,
        a:focus {
            color: var(--accent-amber);
        }
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--accent-gold);
            outline-offset: 3px;
            border-radius: 4px;
        }

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

        ul,
        ol {
            padding-left: 0;
            list-style: none;
        }

        .container-custom {
            width: min(1200px, 100%);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* Header / Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(10, 46, 28, 0.96);
            backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            height: var(--header-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.35);
        }

        .navbar-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1.2rem;
            width: 100%;
            height: 100%;
        }

        .navbar-brand-custom {
            display: flex;
            align-items: center;
            gap: 0.65rem;
            font-size: 1.15rem;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: 0.02em;
            white-space: nowrap;
            transition: color var(--transition);
        }
        .navbar-brand-custom:hover {
            color: var(--accent-gold);
        }
        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(255, 215, 0, 0.18), rgba(255, 215, 0, 0.05));
            color: var(--accent-gold);
            font-size: 1.05rem;
            flex-shrink: 0;
            border: 1px solid var(--border-gold);
        }

        .nav-links-desktop {
            display: flex;
            align-items: center;
            gap: 0.35rem;
            margin: 0;
            list-style: none;
        }
        .nav-links-desktop li a {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.55rem 1rem;
            border-radius: 2rem;
            color: var(--text-pale);
            font-size: 0.95rem;
            font-weight: 600;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .nav-links-desktop li a:hover {
            color: var(--text-white);
            background: rgba(255, 215, 0, 0.08);
        }
        .nav-links-desktop li a.active {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.12);
            border: 1px solid var(--border-gold);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.65rem;
        }
        .btn-login {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: var(--text-white);
            padding: 0.5rem 1.1rem;
            border-radius: 2rem;
            font-size: 0.9rem;
            font-weight: 600;
            transition: all var(--transition);
            cursor: pointer;
            white-space: nowrap;
        }
        .btn-login:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.06);
        }
        .btn-signup {
            background: linear-gradient(135deg, #FFD700, #FFBF00);
            border: 1px solid rgba(255, 215, 0, 0.7);
            color: #1a1a1a;
            padding: 0.5rem 1.15rem;
            border-radius: 2rem;
            font-size: 0.9rem;
            font-weight: 700;
            transition: all var(--transition);
            cursor: pointer;
            white-space: nowrap;
            box-shadow: var(--shadow-btn);
        }
        .btn-signup:hover {
            background: linear-gradient(135deg, #FFE045, #FFC400);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 215, 0, 0.4);
        }

        .navbar-toggler-custom {
            display: none;
            background: transparent;
            border: 1px solid var(--border-gold);
            color: var(--accent-gold);
            width: 42px;
            height: 42px;
            border-radius: 10px;
            font-size: 1.2rem;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: all var(--transition);
        }
        .navbar-toggler-custom:hover {
            background: rgba(255, 215, 0, 0.1);
        }

        .mobile-menu {
            display: none;
            position: absolute;
            top: var(--header-height);
            left: 0;
            right: 0;
            background: rgba(10, 46, 28, 0.99);
            backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-subtle);
            padding: 1rem 1.5rem 1.2rem;
            z-index: 999;
            flex-direction: column;
            gap: 0.5rem;
        }
        .mobile-menu.open {
            display: flex;
        }
        .mobile-menu a {
            display: block;
            padding: 0.7rem 1rem;
            border-radius: 10px;
            color: var(--text-pale);
            font-weight: 600;
            font-size: 1rem;
        }
        .mobile-menu a:hover,
        .mobile-menu a.active {
            background: rgba(255, 215, 0, 0.1);
            color: var(--accent-gold);
        }
        .nav-actions-mobile {
            display: flex;
            gap: 0.6rem;
            margin-top: 0.8rem;
        }
        .nav-actions-mobile .btn-login,
        .nav-actions-mobile .btn-signup {
            flex: 1;
            text-align: center;
            padding: 0.65rem 1rem;
        }

        /* Article Header (Hero) */
        .article-hero {
            position: relative;
            padding: calc(var(--header-height) + 3.5rem) 0 3.2rem;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            min-height: 460px;
            display: flex;
            align-items: center;
            border-bottom: 1px solid var(--border-subtle);
        }
        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 46, 28, 0.82) 0%, rgba(10, 46, 28, 0.93) 55%, rgba(10, 46, 28, 1) 100%);
            z-index: 1;
        }
        .article-hero .container-custom {
            position: relative;
            z-index: 2;
        }

        .article-hero-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 2.5rem;
            align-items: center;
        }

        .article-hero-left {
            text-align: left;
            max-width: 680px;
        }

        .article-meta-top {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.6rem;
            margin-bottom: 1rem;
        }
        .meta-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: rgba(255, 215, 0, 0.12);
            border: 1px solid var(--border-gold);
            color: var(--accent-gold);
            padding: 0.35rem 0.9rem;
            border-radius: 2rem;
            font-size: 0.8rem;
            font-weight: 600;
            white-space: nowrap;
        }
        .meta-badge-muted {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: var(--text-pale);
            padding: 0.35rem 0.9rem;
            border-radius: 2rem;
            font-size: 0.8rem;
            font-weight: 500;
            white-space: nowrap;
        }

        .article-hero h1 {
            font-size: clamp(1.8rem, 4vw, 2.7rem);
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-white);
            margin: 0 0 1rem;
            letter-spacing: 0.01em;
        }
        .article-hero-subtitle {
            font-size: 1.05rem;
            color: var(--text-pale);
            line-height: 1.6;
            max-width: 620px;
        }

        .article-hero-right {
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .article-hero-cover {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 2px solid var(--border-gold);
            max-width: 380px;
            width: 100%;
            aspect-ratio: 1/1;
            background: var(--bg-secondary);
        }
        .article-hero-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .article-hero-cover::after {
            content: '';
            position: absolute;
            inset: 0;
            border-radius: var(--radius-lg);
            box-shadow: inset 0 0 60px rgba(0, 0, 0, 0.35);
            pointer-events: none;
        }

        /* Stats Board */
        .stats-board-section {
            padding: 3rem 0 2rem;
        }
        .stats-board {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1rem;
        }
        .stat-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 1.3rem 1.2rem;
            text-align: left;
            transition: all var(--transition);
        }
        .stat-card:hover {
            border-color: var(--border-gold);
            box-shadow: var(--shadow-gold);
            transform: translateY(-3px);
        }
        .stat-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: rgba(255, 215, 0, 0.12);
            color: var(--accent-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.15rem;
            margin-bottom: 0.7rem;
            border: 1px solid var(--border-gold);
        }
        .stat-value {
            font-size: 1.55rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.2;
            margin-bottom: 0.15rem;
        }
        .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* Article Content */
        .article-content-section {
            padding: 1.5rem 0 2.5rem;
        }
        .article-content-wrapper {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 2rem 2.2rem;
            box-shadow: var(--shadow-card);
        }
        .article-body {
            text-align: left;
            color: var(--text-pale);
            font-size: 1rem;
            line-height: 1.7;
        }
        .article-body h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-white);
            margin: 2rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px solid var(--border-subtle);
        }
        .article-body h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin: 1.5rem 0 0.7rem;
        }
        .article-body p {
            margin-bottom: 1rem;
        }
        .article-body ul,
        .article-body ol {
            padding-left: 1.5rem;
            margin-bottom: 1rem;
        }
        .article-body ul {
            list-style: disc;
        }
        .article-body ol {
            list-style: decimal;
        }
        .article-body li {
            margin-bottom: 0.45rem;
            color: var(--text-pale);
        }
        .article-body strong {
            color: var(--text-white);
            font-weight: 700;
        }
        .article-body a {
            color: var(--accent-gold);
            border-bottom: 1px dotted rgba(255, 215, 0, 0.5);
        }
        .article-body a:hover {
            color: var(--accent-amber);
        }
        .article-body blockquote {
            background: rgba(255, 215, 0, 0.06);
            border-left: 3px solid var(--accent-gold);
            padding: 1rem 1.3rem;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 1.5rem 0;
            color: var(--text-white);
            font-style: italic;
        }
        .article-body img {
            border-radius: var(--radius-md);
            margin: 1.2rem 0;
            border: 1px solid var(--border-subtle);
        }
        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.2rem 0;
        }
        .article-body table th,
        .article-body table td {
            padding: 0.7rem 1rem;
            text-align: left;
            border: 1px solid var(--border-subtle);
        }
        .article-body table th {
            background: rgba(255, 215, 0, 0.08);
            color: var(--accent-gold);
            font-weight: 700;
        }

        .article-not-found {
            text-align: center;
            padding: 3rem 1.5rem;
        }
        .article-not-found .not-found-icon {
            width: 72px;
            height: 72px;
            border-radius: 50%;
            background: rgba(255, 215, 0, 0.1);
            color: var(--accent-gold);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            margin-bottom: 1.2rem;
            border: 2px solid var(--border-gold);
        }
        .article-not-found h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 0.5rem;
        }
        .article-not-found p {
            color: var(--text-muted);
            margin-bottom: 1.5rem;
        }

        /* Download CTA */
        .cta-section {
            padding: 3rem 0;
        }
        .cta-card {
            background: linear-gradient(135deg, #0F3A25 0%, #123E25 45%, #1A4F30 100%);
            border: 2px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 2.5rem 2.2rem;
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
        }
        .cta-card::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -80px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 215, 0, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-heading {
            font-size: clamp(1.4rem, 3vw, 2rem);
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 0.6rem;
        }
        .cta-desc {
            color: var(--text-pale);
            font-size: 1rem;
            max-width: 600px;
            margin-bottom: 1.5rem;
            line-height: 1.6;
        }
        .cta-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
        }
        .btn-cta-gold {
            background: linear-gradient(135deg, #FFD700, #FFBF00);
            border: none;
            color: #1a1a1a;
            padding: 0.7rem 1.5rem;
            border-radius: 2rem;
            font-weight: 700;
            font-size: 0.95rem;
            transition: all var(--transition);
            cursor: pointer;
            box-shadow: var(--shadow-btn);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .btn-cta-gold:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 26px rgba(255, 215, 0, 0.45);
            color: #1a1a1a;
        }
        .btn-cta-outline {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.35);
            color: var(--text-white);
            padding: 0.7rem 1.4rem;
            border-radius: 2rem;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .btn-cta-outline:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.06);
        }

        /* Related Section */
        .related-section {
            padding: 2.5rem 0 3rem;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.2rem;
        }
        .related-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 1.3rem 1.4rem;
            display: flex;
            align-items: center;
            gap: 1rem;
            transition: all var(--transition);
            color: var(--text-white);
        }
        .related-card:hover {
            border-color: var(--border-gold);
            box-shadow: var(--shadow-gold);
            transform: translateY(-2px);
            color: var(--text-white);
        }
        .related-card-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: rgba(255, 215, 0, 0.1);
            color: var(--accent-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            flex-shrink: 0;
            border: 1px solid var(--border-gold);
        }
        .related-card-text h4 {
            font-size: 0.98rem;
            font-weight: 700;
            margin: 0 0 0.2rem;
            color: var(--text-white);
        }
        .related-card-text p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0;
        }

        /* FAQ */
        .faq-section {
            padding: 2.5rem 0 3.5rem;
        }
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 0.7rem;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-gold);
        }
        .faq-question {
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            padding: 1rem 1.3rem;
            color: var(--text-white);
            font-size: 0.98rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            transition: color var(--transition);
        }
        .faq-question:hover {
            color: var(--accent-gold);
        }
        .faq-question .fa-chevron-down {
            transition: transform 0.3s;
            color: var(--accent-gold);
            font-size: 0.85rem;
            flex-shrink: 0;
            margin-left: 1rem;
        }
        .faq-question.active .fa-chevron-down {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 1.3rem 1.1rem;
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.65;
        }

        /* FAB */
        .fab-support {
            position: fixed;
            left: 1.25rem;
            bottom: 5.5rem;
            z-index: 1050;
            width: 54px;
            height: 54px;
            border-radius: 50%;
            border: 2px solid var(--accent-gold);
            background: linear-gradient(145deg, #1a1a1a, #0d0d0d);
            color: var(--accent-gold);
            font-size: 1.25rem;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.35);
            opacity: 0.7;
            transition: all var(--transition);
            animation: fabFloat 3.2s ease-in-out infinite;
        }
        .fab-support:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 6px 28px rgba(255, 215, 0, 0.5);
        }
        .fab-support:active {
            transform: scale(0.95) translateY(2px);
        }
        .fab-support .fab-badge {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--accent-red);
            border: 2px solid #0d0d0d;
            animation: blinkBadge 1.6s ease-in-out infinite;
        }

        @keyframes fabFloat {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-5px); }
        }
        @keyframes blinkBadge {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.35; }
        }

        /* Footer */
        .site-footer {
            background: var(--bg-dark);
            border-top: 1px solid var(--border-subtle);
            padding: 3rem 0 1.5rem;
            color: var(--text-pale);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 2rem;
            margin-bottom: 2.5rem;
        }
        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.65;
            margin-top: 1rem;
            max-width: 300px;
        }
        .footer-payment {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin-top: 1.2rem;
        }
        .payment-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            background: rgba(255, 215, 0, 0.08);
            border: 1px solid var(--border-subtle);
            color: var(--text-pale);
            padding: 0.35rem 0.7rem;
            border-radius: 2rem;
            font-size: 0.78rem;
            font-weight: 600;
            white-space: nowrap;
        }
        .payment-badge i {
            color: var(--accent-gold);
            font-size: 0.7rem;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 0.9rem;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 0.4rem;
        }
        .footer-col ul li a {
            color: var(--text-muted);
            font-size: 0.88rem;
            transition: all var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent-gold);
            padding-left: 4px;
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 0.8rem;
            padding-top: 1.5rem;
            border-top: 1px solid var(--border-subtle);
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .footer-trust {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 1rem;
            color: var(--text-muted);
            font-size: 0.8rem;
        }
        .footer-trust span {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }
        .footer-trust i {
            color: var(--accent-gold);
            font-size: 0.75rem;
        }

        /* Section Title */
        .section-title {
            text-align: left;
            margin-bottom: 1.5rem;
        }
        .section-title h2 {
            font-size: clamp(1.4rem, 3vw, 1.9rem);
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 0.4rem;
        }
        .section-title p {
            color: var(--text-muted);
            font-size: 0.95rem;
            max-width: 700px;
        }

        /* Divider */
        .section-divider {
            border: none;
            border-top: 1px solid var(--border-subtle);
            margin: 0;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .article-hero-grid {
                gap: 1.5rem;
            }
            .stats-board {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            :root {
                --header-height: 62px;
            }
            .nav-links-desktop {
                display: none;
            }
            .navbar-toggler-custom {
                display: flex;
            }
            .nav-actions {
                display: none;
            }
            .nav-actions-mobile {
                display: flex;
            }
            .article-hero {
                padding-top: calc(var(--header-height) + 2.5rem);
                padding-bottom: 2.2rem;
                min-height: auto;
            }
            .article-hero-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .article-hero-right {
                order: -1;
                justify-content: flex-start;
            }
            .article-hero-cover {
                max-width: 280px;
            }
            .article-content-wrapper {
                padding: 1.3rem 1.2rem;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .cta-card {
                padding: 1.8rem 1.3rem;
            }
            .cta-buttons {
                flex-direction: column;
                gap: 0.6rem;
            }
            .btn-cta-gold,
            .btn-cta-outline {
                justify-content: center;
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.2rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }
            .fab-support {
                left: 0.9rem;
                bottom: 4.5rem;
                width: 48px;
                height: 48px;
                font-size: 1.05rem;
            }
        }
        @media (max-width: 520px) {
            .container-custom {
                padding-left: 14px;
                padding-right: 14px;
            }
            .stats-board {
                grid-template-columns: 1fr 1fr;
                gap: 0.7rem;
            }
            .stat-card {
                padding: 0.9rem 0.8rem;
            }
            .stat-value {
                font-size: 1.2rem;
            }
            .stat-label {
                font-size: 0.75rem;
            }
            .article-hero h1 {
                font-size: 1.45rem;
            }
            .article-hero-subtitle {
                font-size: 0.9rem;
            }
            .meta-badge,
            .meta-badge-muted {
                font-size: 0.7rem;
                padding: 0.25rem 0.65rem;
            }
            .article-body {
                font-size: 0.92rem;
            }
            .article-body h2 {
                font-size: 1.25rem;
            }
            .article-body h3 {
                font-size: 1.05rem;
            }
            .cta-heading {
                font-size: 1.25rem;
            }
            .cta-desc {
                font-size: 0.88rem;
            }
        }
        @media (min-width: 769px) {
            .nav-actions-mobile {
                display: none;
            }
        }

/* roulang page: category1 */
:root {
            --bg-deep: #0A2E1C;
            --bg-forest: #123E25;
            --bg-midnight: #071A10;
            --accent-gold: #FFD700;
            --accent-gold-soft: #F5C842;
            --accent-red: #D32F2F;
            --text-white: #FFFFFF;
            --text-mint: #D1F2EB;
            --text-muted: #9DB8AB;
            --border-gold: rgba(255, 215, 0, 0.35);
            --border-lite: rgba(255, 255, 255, 0.08);
            --radius-lg: 24px;
            --radius-md: 16px;
            --radius-sm: 10px;
            --shadow-soft: 0 8px 32px rgba(0, 0, 0, 0.25);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.15);
            --shadow-glow: 0 0 18px rgba(255, 215, 0, 0.25);
            --font-primary: 'Be Vietnam Pro', sans-serif;
            --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-primary);
            background: var(--bg-deep);
            color: var(--text-white);
            line-height: 1.65;
            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%;
            height: auto;
            display: block;
        }

        button {
            font-family: var(--font-primary);
        }

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

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

        @media (min-width: 1400px) {
            .container-custom {
                max-width: 1320px;
            }
        }

        @media (max-width: 768px) {
            .container-custom {
                padding: 0 16px;
            }
        }

        @media (max-width: 520px) {
            .container-custom {
                padding: 0 14px;
            }
        }

        /* ============ HEADER / NAV ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1050;
            background: rgba(7, 26, 16, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 215, 0, 0.12);
            transition: var(--transition-base);
            padding: 12px 0;
        }

        .site-header.scrolled {
            background: rgba(7, 26, 16, 0.98);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
            padding: 8px 0;
        }

        .navbar-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .navbar-brand-custom {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.15rem;
            color: var(--text-white);
            white-space: nowrap;
        }

        .navbar-brand-custom .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--accent-gold), #FF8C00);
            border-radius: 12px;
            color: var(--bg-deep);
            font-size: 1.2rem;
            flex-shrink: 0;
            box-shadow: var(--shadow-gold);
        }

        .nav-links-desktop {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .nav-links-desktop li a {
            display: inline-flex;
            align-items: center;
            padding: 9px 18px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.92rem;
            color: var(--text-mint);
            transition: var(--transition-base);
            position: relative;
        }

        .nav-links-desktop li a:hover {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
        }

        .nav-links-desktop li a.active {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.14);
            border: 1px solid rgba(255, 215, 0, 0.25);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .btn-login,
        .btn-signup {
            padding: 9px 20px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.9rem;
            border: none;
            cursor: pointer;
            transition: var(--transition-base);
            white-space: nowrap;
        }

        .btn-login {
            background: transparent;
            color: var(--text-mint);
            border: 1px solid rgba(255, 255, 255, 0.18);
        }

        .btn-login:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.06);
        }

        .btn-signup {
            background: linear-gradient(135deg, var(--accent-gold), #FFB300);
            color: var(--bg-deep);
            font-weight: 800;
            box-shadow: var(--shadow-gold);
        }

        .btn-signup:hover {
            background: linear-gradient(135deg, #FFE44D, var(--accent-gold));
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255, 215, 0, 0.3);
            color: var(--bg-deep);
        }

        .navbar-toggler-custom {
            display: none;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            color: var(--text-white);
            width: 42px;
            height: 42px;
            border-radius: 10px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            transition: var(--transition-base);
        }

        .navbar-toggler-custom:hover {
            background: rgba(255, 215, 0, 0.12);
            border-color: rgba(255, 215, 0, 0.3);
            color: var(--accent-gold);
        }

        .mobile-menu {
            display: none;
            flex-direction: column;
            gap: 4px;
            padding: 16px 0 8px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            margin-top: 10px;
            animation: fadeSlideDown 0.3s ease;
        }

        .mobile-menu a {
            padding: 12px 16px;
            border-radius: 10px;
            font-weight: 600;
            color: var(--text-mint);
            transition: var(--transition-base);
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
        }

        .nav-actions-mobile {
            display: flex;
            gap: 8px;
            margin-top: 10px;
            padding: 0 16px;
        }

        .nav-actions-mobile .btn-login,
        .nav-actions-mobile .btn-signup {
            flex: 1;
            text-align: center;
            padding: 11px 12px;
            font-size: 0.88rem;
        }

        @keyframes fadeSlideDown {
            from {
                opacity: 0;
                transform: translateY(-8px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @media (max-width: 992px) {
            .nav-links-desktop {
                display: none;
            }

            .navbar-toggler-custom {
                display: inline-flex;
            }

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

        @media (max-width: 520px) {
            .navbar-brand-custom {
                font-size: 0.98rem;
            }

            .navbar-brand-custom .brand-icon {
                width: 34px;
                height: 34px;
                font-size: 1rem;
                border-radius: 10px;
            }

            .btn-login,
            .btn-signup {
                padding: 8px 14px;
                font-size: 0.8rem;
            }
        }

        @media (max-width: 400px) {
            .btn-login {
                display: none;
            }
        }

        /* ============ HERO ============ */
        .hero-category {
            position: relative;
            min-height: 88vh;
            display: flex;
            align-items: center;
            padding: 130px 0 60px;
            background: linear-gradient(180deg, var(--bg-midnight) 0%, var(--bg-deep) 40%, rgba(10, 46, 28, 0.94) 100%);
            overflow: hidden;
        }

        .hero-category::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.22;
            pointer-events: none;
        }

        .hero-category::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 40%;
            background: linear-gradient(0deg, var(--bg-deep) 8%, transparent 100%);
            pointer-events: none;
        }

        .hero-category .container-custom {
            position: relative;
            z-index: 3;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 40px;
            align-items: center;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 215, 0, 0.12);
            border: 1px solid rgba(255, 215, 0, 0.3);
            color: var(--accent-gold);
            padding: 7px 16px;
            border-radius: 50px;
            font-size: 0.82rem;
            font-weight: 700;
            letter-spacing: 0.4px;
            margin-bottom: 18px;
        }

        .hero-badge i {
            font-size: 0.75rem;
        }

        .hero-category h1 {
            font-size: clamp(2rem, 5vw, 2.9rem);
            font-weight: 900;
            line-height: 1.18;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: -0.4px;
        }

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

        .hero-subtitle {
            font-size: 1.06rem;
            color: var(--text-mint);
            line-height: 1.7;
            max-width: 540px;
            margin-bottom: 24px;
            opacity: 0.85;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 8px;
        }

        .btn-hero-primary,
        .btn-hero-outline {
            padding: 14px 28px;
            border-radius: 50px;
            font-weight: 800;
            font-size: 0.95rem;
            cursor: pointer;
            transition: var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            border: none;
        }

        .btn-hero-primary {
            background: linear-gradient(135deg, var(--accent-gold), #FFB300);
            color: var(--bg-deep);
            box-shadow: 0 6px 24px rgba(255, 215, 0, 0.3);
        }

        .btn-hero-primary:hover {
            background: linear-gradient(135deg, #FFE44D, var(--accent-gold));
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(255, 215, 0, 0.4);
            color: var(--bg-deep);
        }

        .btn-hero-outline {
            background: transparent;
            color: var(--text-white);
            border: 1.5px solid rgba(255, 255, 255, 0.25);
        }

        .btn-hero-outline:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.06);
        }

        .hero-stats-row {
            display: flex;
            flex-wrap: wrap;
            gap: 28px;
            margin-top: 30px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .hero-stat-item {
            display: flex;
            flex-direction: column;
        }

        .hero-stat-number {
            font-size: 1.45rem;
            font-weight: 900;
            color: var(--accent-gold);
            letter-spacing: -0.5px;
        }

        .hero-stat-label {
            font-size: 0.8rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        .hero-visual-wrapper {
            position: relative;
            display: flex;
            justify-content: center;
            align-items: center;
            min-height: 360px;
        }

        .hero-visual-ring {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 420px;
            height: 420px;
            border-radius: 50%;
            border: 1.5px dashed rgba(255, 215, 0, 0.25);
            animation: slowSpin 40s linear infinite;
            pointer-events: none;
        }
        
        @keyframes slowSpin {
            from { transform: translate(-50%, -50%) rotate(0deg); }
            to { transform: translate(-50%, -50%) rotate(360deg); }
        }

        .hero-visual-inner {
            position: relative;
            z-index: 2;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: rgba(10, 46, 28, 0.9);
            border: 2px solid rgba(255, 215, 0, 0.4);
            box-shadow: 0 0 0 12px rgba(255, 215, 0, 0.06), 0 0 0 24px rgba(255, 215, 0, 0.03), var(--shadow-glow);
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            animation: pulseRing 3s ease-in-out infinite;
        }

        .hero-visual-inner img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 50%;
        }

        @keyframes pulseRing {
            0%, 100% { box-shadow: 0 0 0 12px rgba(255, 215, 0, 0.06), 0 0 0 24px rgba(255, 215, 0, 0.03), var(--shadow-glow); }
            50% { box-shadow: 0 0 0 16px rgba(255, 215, 0, 0.08), 0 0 0 30px rgba(255, 215, 0, 0.04), 0 0 28px rgba(255, 215, 0, 0.35); }
        }

        .hero-countdown {
            position: absolute;
            bottom: -4px;
            right: 12%;
            z-index: 3;
            display: flex;
            flex-direction: column;
            gap: 6px;
            background: rgba(7, 26, 16, 0.92);
            border: 1px solid rgba(255, 215, 0, 0.3);
            border-radius: 14px;
            padding: 12px 18px;
            min-width: 130px;
            backdrop-filter: blur(8px);
        }

        .hero-countdown-label {
            font-size: 0.72rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: var(--text-muted);
            font-weight: 600;
        }

        .hero-countdown-timer {
            font-size: 1.1rem;
            font-weight: 900;
            color: var(--accent-gold);
            letter-spacing: 1px;
        }

        .hero-rotating-badges {
            display: flex;
            gap: 10px;
            margin-top: 18px;
            flex-wrap: wrap;
        }

        .hero-rotating-badges span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            padding: 8px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            color: var(--text-mint);
            font-weight: 500;
        }

        .hero-rotating-badges i {
            color: var(--accent-gold);
            font-size: 0.75rem;
        }

        @media (max-width: 992px) {
            .hero-category {
                min-height: auto;
                padding: 110px 0 50px;
            }

            .hero-grid {
                grid-template-columns: 1fr;
                gap: 30px;
                text-align: left;
            }

            .hero-visual-wrapper {
                min-height: 300px;
            }

            .hero-visual-inner {
                width: 220px;
                height: 220px;
            }

            .hero-countdown {
                right: 6%;
            }
        }

        @media (max-width: 520px) {
            .hero-visual-wrapper {
                min-height: 260px;
            }

            .hero-visual-inner {
                width: 180px;
                height: 180px;
            }

            .hero-countdown {
                right: 0;
                bottom: -10px;
                min-width: 110px;
                padding: 10px 14px;
            }

            .hero-countdown-timer {
                font-size: 0.95rem;
            }

            .hero-rotating-badges span {
                font-size: 0.72rem;
                padding: 6px 10px;
            }
        }

        /* ============ SECTIONS GENERAL ============ */
        .section {
            padding: 72px 0;
            position: relative;
        }

        .section-dark {
            background: var(--bg-midnight);
        }

        .section-forest {
            background: linear-gradient(180deg, var(--bg-deep) 0%, var(--bg-forest) 100%);
        }

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

        .section-header .section-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--accent-gold);
            font-size: 0.82rem;
            font-weight: 700;
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .section-header .section-eyebrow::before {
            content: '';
            width: 24px;
            height: 2px;
            background: var(--accent-gold);
            border-radius: 2px;
        }

        .section-title {
            font-size: clamp(1.65rem, 3.5vw, 2.25rem);
            font-weight: 900;
            color: var(--text-white);
            line-height: 1.25;
            letter-spacing: -0.3px;
            margin-bottom: 12px;
        }

        .section-subtitle {
            font-size: 1rem;
            color: var(--text-mint);
            line-height: 1.7;
            opacity: 0.82;
            max-width: 600px;
        }

        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }

            .section-header {
                margin-bottom: 28px;
            }
        }

        /* ============ STEPS SECTION ============ */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 16px;
        }

        .step-card {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-lite);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            transition: var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .step-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-gold), transparent);
            opacity: 0;
            transition: var(--transition-base);
        }

        .step-card:hover {
            transform: translateY(-4px);
            border-color: rgba(255, 215, 0, 0.28);
            background: rgba(255, 255, 255, 0.05);
            box-shadow: var(--shadow-soft);
        }

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

        .step-number-wrapper {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 46px;
            height: 46px;
            border-radius: 14px;
            background: linear-gradient(135deg, var(--accent-gold), #FFB300);
            color: var(--bg-deep);
            font-size: 1.25rem;
            font-weight: 900;
            margin-bottom: 18px;
        }

        .step-card h3 {
            font-size: 1.1rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 10px;
        }

        .step-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 0;
        }

        @media (max-width: 992px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 600px) {
            .steps-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ============ PLATFORM / SERVICE MATRIX ============ */
        .platform-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 22px;
        }

        .platform-card {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-lite);
            border-radius: var(--radius-lg);
            padding: 28px;
            display: flex;
            flex-direction: column;
            gap: 16px;
            transition: var(--transition-base);
            position: relative;
        }

        .platform-card:hover {
            border-color: rgba(255, 215, 0, 0.3);
            background: rgba(255, 255, 255, 0.05);
            box-shadow: var(--shadow-soft);
        }

        .platform-card .platform-icon {
            width: 50px;
            height: 50px;
            border-radius: 14px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            background: rgba(255, 215, 0, 0.12);
            color: var(--accent-gold);
            border: 1px solid rgba(255, 215, 0, 0.2);
        }

        .platform-card h3 {
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--text-white);
            margin: 0;
        }

        .platform-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.65;
            margin: 0;
        }

        .platform-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 4px;
        }

        .platform-meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.08);
            padding: 6px 12px;
            border-radius: 50px;
            font-size: 0.78rem;
            color: var(--text-mint);
            font-weight: 500;
        }

        .platform-meta i {
            color: var(--accent-gold);
            font-size: 0.7rem;
        }

        .platform-card .btn-download {
            align-self: flex-start;
            margin-top: 6px;
            padding: 12px 24px;
            border-radius: 50px;
            border: none;
            background: linear-gradient(135deg, var(--accent-gold), #FFB300);
            color: var(--bg-deep);
            font-weight: 800;
            font-size: 0.9rem;
            cursor: pointer;
            transition: var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .platform-card .btn-download:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 215, 0, 0.3);
        }

        @media (max-width: 768px) {
            .platform-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ============ COMPARISON / DATA DASHBOARD ============ */
        .comparison-wrapper {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-lite);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-soft);
        }

        .comparison-header {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            background: rgba(255, 215, 0, 0.07);
            border-bottom: 1px solid rgba(255, 215, 0, 0.15);
            padding: 16px 22px;
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--text-mint);
        }

        .comparison-row {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            padding: 16px 22px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            transition: var(--transition-base);
            align-items: center;
        }

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

        .comparison-row:hover {
            background: rgba(255, 255, 255, 0.02);
        }

        .comparison-row .comparison-label {
            font-weight: 600;
            color: var(--text-white);
            font-size: 0.88rem;
        }

        .comparison-row .comparison-value {
            color: var(--text-mint);
            font-size: 0.88rem;
        }

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

        .comparison-row .comparison-value i {
            margin-right: 6px;
            color: var(--accent-gold);
            font-size: 0.75rem;
        }

        @media (max-width: 768px) {
            .comparison-header {
                grid-template-columns: 1.2fr 1fr 1fr;
                font-size: 0.8rem;
                padding: 12px 16px;
            }

            .comparison-row {
                grid-template-columns: 1.2fr 1fr 1fr;
                font-size: 0.78rem;
                padding: 12px 16px;
            }

            .comparison-row .comparison-label,
            .comparison-row .comparison-value {
                font-size: 0.78rem;
            }
        }

        @media (max-width: 520px) {
            .comparison-header,
            .comparison-row {
                grid-template-columns: 1.1fr 1fr 1fr;
                padding: 10px 12px;
            }
        }

        /* ============ FAQ ============ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

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

        .faq-item:hover {
            border-color: rgba(255, 215, 0, 0.2);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            cursor: pointer;
            font-weight: 700;
            font-size: 0.98rem;
            color: var(--text-white);
            transition: var(--transition-base);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-family: var(--font-primary);
        }

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

        .faq-question .faq-toggle-icon {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            color: var(--text-mint);
            font-size: 0.85rem;
            flex-shrink: 0;
            transition: var(--transition-base);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s ease;
            padding: 0 22px;
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.65;
        }

        .faq-answer.open {
            max-height: 500px;
            padding: 0 22px 20px;
        }

        .faq-item.active .faq-toggle-icon {
            background: rgba(255, 215, 0, 0.15);
            border-color: rgba(255, 215, 0, 0.3);
            color: var(--accent-gold);
            transform: rotate(45deg);
        }

        @media (max-width: 520px) {
            .faq-question {
                font-size: 0.88rem;
                padding: 14px 16px;
            }

            .faq-answer {
                padding: 0 16px;
                font-size: 0.84rem;
            }

            .faq-answer.open {
                padding: 0 16px 16px;
            }
        }

        /* ============ FINAL CTA ============ */
        .cta-final {
            position: relative;
            padding: 70px 0;
            background: linear-gradient(135deg, var(--bg-midnight) 0%, var(--bg-forest) 100%);
            overflow: hidden;
        }

        .cta-final::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            pointer-events: none;
        }

        .cta-final .container-custom {
            position: relative;
            z-index: 2;
        }

        .cta-panel {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 40px;
            align-items: center;
            background: rgba(7, 26, 16, 0.85);
            border: 1px solid rgba(255, 215, 0, 0.25);
            border-radius: var(--radius-lg);
            padding: 36px 34px;
            backdrop-filter: blur(12px);
            box-shadow: var(--shadow-soft);
        }

        .cta-panel h2 {
            font-size: clamp(1.55rem, 3vw, 2rem);
            font-weight: 900;
            color: var(--text-white);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }

        .cta-panel p {
            color: var(--text-mint);
            font-size: 0.98rem;
            line-height: 1.7;
            opacity: 0.85;
            margin-bottom: 20px;
        }

        .cta-trust-row {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-top: 16px;
        }

        .cta-trust-item {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            font-size: 0.82rem;
            color: var(--text-mint);
            font-weight: 500;
        }

        .cta-trust-item i {
            color: var(--accent-gold);
            font-size: 0.85rem;
        }

        .cta-form-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-md);
            padding: 24px;
        }

        .cta-form-card label {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-mint);
            margin-bottom: 6px;
            display: block;
        }

        .cta-form-card .form-control {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 10px;
            color: var(--text-white);
            padding: 12px 16px;
            font-size: 0.9rem;
            transition: var(--transition-base);
        }

        .cta-form-card .form-control::placeholder {
            color: var(--text-muted);
        }

        .cta-form-card .form-control:focus {
            border-color: var(--accent-gold);
            background: rgba(255, 255, 255, 0.08);
            box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.15);
            color: var(--text-white);
            outline: none;
        }

        .cta-form-card .btn-form-submit {
            width: 100%;
            padding: 13px 24px;
            border-radius: 50px;
            border: none;
            background: linear-gradient(135deg, var(--accent-gold), #FFB300);
            color: var(--bg-deep);
            font-weight: 800;
            font-size: 0.95rem;
            cursor: pointer;
            transition: var(--transition-base);
            margin-top: 12px;
        }

        .cta-form-card .btn-form-submit:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 215, 0, 0.3);
        }

        @media (max-width: 992px) {
            .cta-panel {
                grid-template-columns: 1fr;
                gap: 24px;
                padding: 24px 20px;
            }
        }

        @media (max-width: 520px) {
            .cta-final {
                padding: 48px 0;
            }

            .cta-panel {
                padding: 20px 16px;
                border-radius: 16px;
            }
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--bg-midnight);
            border-top: 1px solid rgba(255, 215, 0, 0.12);
            padding: 50px 0 24px;
            position: relative;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 36px;
        }

        .footer-brand .navbar-brand-custom {
            font-size: 1.1rem;
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 0.86rem;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 16px;
        }

        .footer-payment {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .payment-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            padding: 7px 12px;
            border-radius: 50px;
            font-size: 0.76rem;
            color: var(--text-mint);
            font-weight: 600;
            transition: var(--transition-base);
        }

        .payment-badge:hover {
            border-color: rgba(255, 215, 0, 0.3);
            background: rgba(255, 215, 0, 0.08);
            color: var(--accent-gold);
        }

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

        .footer-col h4 {
            font-size: 0.92rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

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

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 0.8rem;
            color: var(--text-muted);
        }

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

        .footer-trust {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .footer-trust span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 0.76rem;
            color: var(--text-muted);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            padding: 5px 12px;
            border-radius: 50px;
        }

        .footer-trust i {
            color: var(--accent-gold);
            font-size: 0.7rem;
        }

        @media (max-width: 992px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 600px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

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

        /* ============ FAB ============ */
        .fab-left {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 1049;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, #0A2E1C, #071A10);
            border: 2px solid var(--accent-gold);
            box-shadow: var(--shadow-glow);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition-base);
            animation: fabFloat 5s ease-in-out infinite;
            color: var(--accent-gold);
            font-size: 1.3rem;
            text-decoration: none;
        }

        .fab-left:hover {
            transform: scale(1.12);
            opacity: 1;
            box-shadow: 0 0 28px rgba(255, 215, 0, 0.45);
            color: var(--accent-gold);
        }

        .fab-left:active {
            transform: scale(0.94);
        }

        .fab-left .fab-notification {
            position: absolute;
            top: 4px;
            right: 4px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--accent-red);
            border: 2px solid var(--bg-deep);
            animation: blinkDot 2s ease-in-out infinite;
        }

        @keyframes fabFloat {
            0%, 100% { transform: translateY(0); opacity: 0.75; }
            50% { transform: translateY(-8px); opacity: 1; }
        }

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

        @media (max-width: 520px) {
            .fab-left {
                width: 48px;
                height: 48px;
                left: 12px;
                bottom: 84px;
                font-size: 1.1rem;
            }
        }

/* roulang page: category2 */
:root{
            --brand-jade:#0A2E1C;
            --brand-forest:#123E25;
            --brand-ocean:#0B1A30;
            --brand-teal:#0D6B5C;
            --brand-teal-bright:#149F8F;
            --brand-gold:#FFD700;
            --brand-gold-dark:#D4A017;
            --brand-red:#D32F2F;
            --brand-red-soft:#FF5252;
            --brand-mint:#D1F2EB;
            --brand-white:#FFFFFF;
            --brand-cloud:#F5F9F7;
            --brand-gray:#A6ACAF;
            --brand-border:rgba(255,255,255,.12);
            --brand-gold-border:rgba(255,215,0,.32);
            --radius-sm:10px;
            --radius-md:14px;
            --radius-lg:20px;
            --radius-xl:28px;
            --shadow-sm:0 4px 12px rgba(0,0,0,.18);
            --shadow-md:0 10px 30px rgba(0,0,0,.28);
            --shadow-gold:0 8px 24px rgba(255,215,0,.24);
            --transition:all .25s ease;
            --font-body:'Segoe UI', 'Inter', -apple-system, BlinkMacSystemFont, Roboto, Arial, sans-serif;
        }

        *{box-sizing:border-box;}
        html{scroll-behavior:smooth;}
        body{
            margin:0;
            font-family:var(--font-body);
            line-height:1.65;
            background:var(--brand-cloud);
            color:var(--brand-jade);
            overflow-x:hidden;
            -webkit-font-smoothing:antialiased;
        }
        img{max-width:100%; display:block;}
        a{text-decoration:none;}
        ul{list-style:none; margin:0; padding:0;}

        .container-custom{
            width:100%;
            max-width:1200px;
            margin:0 auto;
            padding-left:20px;
            padding-right:20px;
        }

        /* ==================== HEADER ==================== */
        .site-header{
            position:fixed;
            top:0; left:0; right:0;
            z-index:1000;
            background:rgba(10,46,28,.96);
            backdrop-filter:blur(12px);
            -webkit-backdrop-filter:blur(12px);
            border-bottom:1px solid var(--brand-gold-border);
            transition:box-shadow .25s ease, background .25s ease;
        }
        .site-header.scrolled{
            box-shadow:0 8px 30px rgba(0,0,0,.4);
            background:rgba(10,46,28,.99);
        }
        .navbar-custom{
            display:flex;
            align-items:center;
            justify-content:space-between;
            gap:16px;
            height:72px;
        }
        .navbar-brand-custom{
            display:flex;
            align-items:center;
            gap:10px;
            color:var(--brand-white);
            font-weight:800;
            font-size:1.15rem;
            letter-spacing:.2px;
            transition:var(--transition);
        }
        .navbar-brand-custom:hover{color:var(--brand-gold);}
        .brand-icon{
            width:40px; height:40px;
            border-radius:12px;
            background:linear-gradient(135deg,var(--brand-gold),var(--brand-gold-dark));
            display:flex; align-items:center; justify-content:center;
            color:var(--brand-jade);
            font-size:1.25rem;
            box-shadow:0 4px 14px rgba(255,215,0,.35);
        }
        .nav-links-desktop{
            display:flex;
            align-items:center;
            gap:6px;
        }
        .nav-links-desktop a{
            color:var(--brand-mint);
            font-weight:600;
            font-size:.95rem;
            padding:9px 14px;
            border-radius:var(--radius-sm);
            border:1px solid transparent;
            transition:var(--transition);
        }
        .nav-links-desktop a:hover{
            color:var(--brand-gold);
            background:rgba(255,215,0,.08);
        }
        .nav-links-desktop a.active{
            color:var(--brand-gold);
            background:rgba(255,215,0,.12);
            border-color:var(--brand-gold-border);
        }
        .nav-actions{
            display:flex;
            align-items:center;
            gap:10px;
        }
        .btn-login,
        .btn-signup{
            border-radius:12px;
            padding:10px 18px;
            font-weight:700;
            font-size:.92rem;
            border:none;
            cursor:pointer;
            white-space:nowrap;
            transition:var(--transition);
            font-family:var(--font-body);
        }
        .btn-login{
            background:transparent;
            color:var(--brand-white);
            border:1px solid rgba(255,255,255,.35);
        }
        .btn-login:hover{
            border-color:var(--brand-gold);
            color:var(--brand-gold);
        }
        .btn-signup{
            background:linear-gradient(135deg,var(--brand-gold),var(--brand-gold-dark));
            color:var(--brand-jade);
            box-shadow:0 6px 18px rgba(255,215,0,.3);
        }
        .btn-signup:hover{
            transform:translateY(-2px);
            box-shadow:0 10px 24px rgba(255,215,0,.45);
        }
        .btn-login:focus-visible,
        .btn-signup:focus-visible{
            outline:3px solid rgba(255,215,0,.6);
            outline-offset:2px;
        }
        .navbar-toggler-custom{
            display:none;
            width:44px; height:44px;
            border-radius:12px;
            background:rgba(255,255,255,.08);
            border:1px solid rgba(255,255,255,.18);
            color:var(--brand-white);
            font-size:1.25rem;
            cursor:pointer;
            transition:var(--transition);
        }
        .navbar-toggler-custom:hover{
            background:rgba(255,215,0,.15);
            color:var(--brand-gold);
        }

        /* Mobile menu */
        .mobile-menu{
            display:none;
            padding:14px 20px 20px;
            background:var(--brand-jade);
            border-top:1px solid var(--brand-gold-border);
            flex-direction:column;
            gap:6px;
            animation:menuFade .25s ease;
        }
        .mobile-menu.open{display:flex;}
        @keyframes menuFade{
            from{opacity:0; transform:translateY(-8px);}
            to{opacity:1; transform:translateY(0);}
        }
        .mobile-menu a{
            color:var(--brand-mint);
            font-weight:600;
            padding:12px 14px;
            border-radius:var(--radius-sm);
            transition:var(--transition);
            font-size:1rem;
        }
        .mobile-menu a:hover,
        .mobile-menu a.active{
            color:var(--brand-gold);
            background:rgba(255,215,0,.1);
        }
        .nav-actions-mobile{
            display:flex;
            gap:10px;
            margin-top:12px;
        }
        .nav-actions-mobile .btn-login,
        .nav-actions-mobile .btn-signup{
            flex:1;
            text-align:center;
        }

        /* ==================== HERO ==================== */
        .hero-cat{
            position:relative;
            padding:160px 0 90px;
            min-height:100vh;
            display:flex;
            align-items:center;
            background-image:
                linear-gradient(180deg, rgba(10,46,28,.86) 0%, rgba(11,26,48,.82) 100%),
                url('/assets/images/backpic/back-2.png');
            background-size:cover;
            background-position:center;
            background-repeat:no-repeat;
            color:var(--brand-white);
            overflow:hidden;
        }
        .hero-cat::after{
            content:"";
            position:absolute;
            inset:0;
            background:radial-gradient(circle at 50% 60%, rgba(255,215,0,.12), transparent 55%);
            pointer-events:none;
        }
        .hero-cat-container{
            position:relative;
            z-index:2;
            text-align:center;
        }
        .hero-eyebrow{
            display:inline-flex;
            align-items:center;
            gap:8px;
            background:rgba(255,255,255,.08);
            border:1px solid var(--brand-gold-border);
            color:var(--brand-gold);
            font-weight:700;
            font-size:.86rem;
            letter-spacing:.4px;
            text-transform:uppercase;
            padding:8px 18px;
            border-radius:999px;
            margin-bottom:22px;
            backdrop-filter:blur(6px);
        }
        .hero-cat-title{
            font-size:clamp(1.9rem, 4.4vw, 3.6rem);
            font-weight:900;
            line-height:1.2;
            letter-spacing:-.5px;
            color:var(--brand-white);
            margin:0 auto 20px;
            max-width:950px;
        }
        .hero-cat-title span{color:var(--brand-gold);}
        .hero-cat-sub{
            font-size:clamp(1rem, 2vw, 1.2rem);
            color:var(--brand-mint);
            max-width:820px;
            margin:0 auto 44px;
            opacity:.98;
        }
        .hero-stage{
            display:grid;
            grid-template-columns:minmax(0,1fr) minmax(280px, 440px) minmax(0,1fr);
            align-items:center;
            gap:clamp(16px, 3vw, 40px);
            margin-bottom:42px;
        }
        .stage-center{
            position:relative;
            border-radius:var(--radius-xl);
            overflow:hidden;
            border:2px solid var(--brand-gold-border);
            box-shadow:0 20px 60px rgba(0,0,0,.5), 0 0 0 6px rgba(255,215,0,.08);
        }
        .stage-img{
            width:100%;
            height:auto;
            object-fit:cover;
            aspect-ratio:4/5;
        }
        .stage-badge{
            position:absolute;
            background:linear-gradient(135deg,var(--brand-gold),var(--brand-gold-dark));
            color:var(--brand-jade);
            font-weight:800;
            font-size:.82rem;
            padding:9px 16px;
            border-radius:999px;
            box-shadow:0 8px 20px rgba(255,215,0,.4);
            white-space:nowrap;
        }
        .stage-badge-top{top:16px; right:16px;}
        .stage-badge-bottom{
            bottom:16px; left:16px;
            background:linear-gradient(135deg,var(--brand-red),#B71C1C);
            color:var(--brand-white);
            box-shadow:0 8px 20px rgba(211,47,47,.4);
        }
        .stage-side{
            display:flex;
            flex-direction:column;
            gap:12px;
        }
        .value-chip{
            display:flex;
            align-items:center;
            gap:10px;
            background:rgba(255,255,255,.06);
            border:1px solid rgba(255,255,255,.14);
            color:var(--brand-white);
            font-weight:600;
            font-size:.92rem;
            padding:12px 16px;
            border-radius:var(--radius-md);
            backdrop-filter:blur(8px);
            text-align:left;
            transition:var(--transition);
        }
        .value-chip i{
            color:var(--brand-gold);
            font-size:1.1rem;
            width:20px;
            text-align:center;
            flex-shrink:0;
        }
        .value-chip:hover{
            background:rgba(255,215,0,.12);
            border-color:var(--brand-gold-border);
            transform:translateY(-2px);
        }
        .hero-download{
            display:flex;
            flex-wrap:wrap;
            justify-content:center;
            gap:14px;
            margin-top:6px;
        }
        .btn-download{
            display:inline-flex;
            align-items:center;
            gap:10px;
            padding:16px 30px;
            border-radius:16px;
            font-weight:800;
            font-size:1.05rem;
            transition:var(--transition);
            border:1px solid transparent;
        }
        .btn-download i{font-size:1.4rem;}
        .btn-ios{
            background:var(--brand-white);
            color:var(--brand-jade);
        }
        .btn-ios:hover{
            transform:translateY(-3px);
            box-shadow:0 14px 30px rgba(255,255,255,.25);
        }
        .btn-android{
            background:linear-gradient(135deg,var(--brand-gold),var(--brand-gold-dark));
            color:var(--brand-jade);
            box-shadow:0 10px 26px rgba(255,215,0,.35);
        }
        .btn-android:hover{
            transform:translateY(-3px);
            box-shadow:0 16px 32px rgba(255,215,0,.5);
        }
        .btn-download:focus-visible{
            outline:3px solid rgba(255,215,0,.6);
            outline-offset:3px;
        }

        /* ==================== METRICS ==================== */
        .metrics-section{
            padding:70px 0;
            background:var(--brand-jade);
            color:var(--brand-white);
            border-top:1px solid var(--brand-gold-border);
            border-bottom:1px solid var(--brand-gold-border);
        }
        .metrics-grid{
            display:grid;
            grid-template-columns:repeat(4,1fr);
            gap:18px;
        }
        .metric-card{
            background:linear-gradient(160deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
            border:1px solid var(--brand-border);
            border-radius:var(--radius-lg);
            padding:26px 20px;
            text-align:center;
            transition:var(--transition);
        }
        .metric-card:hover{
            border-color:var(--brand-gold-border);
            transform:translateY(-4px);
            box-shadow:0 14px 30px rgba(0,0,0,.3);
        }
        .metric-value{
            font-size:2.15rem;
            font-weight:900;
            color:var(--brand-gold);
            line-height:1;
            letter-spacing:-.5px;
        }
        .metric-label{
            margin-top:10px;
            font-size:.95rem;
            color:var(--brand-mint);
            font-weight:600;
        }
        .metric-icon{
            display:inline-flex;
            align-items:center;
            justify-content:center;
            width:46px; height:46px;
            border-radius:14px;
            background:rgba(255,215,0,.15);
            color:var(--brand-gold);
            font-size:1.35rem;
            margin-bottom:12px;
        }

        /* ==================== TIPS ==================== */
        .tips-section{
            padding:90px 0;
            background:var(--brand-cloud);
            color:var(--brand-jade);
        }
        .section-head{
            max-width:720px;
            margin-bottom:52px;
        }
        .section-tag{
            display:inline-block;
            background:rgba(10,46,28,.08);
            border:1px solid rgba(10,46,28,.16);
            color:var(--brand-teal);
            font-weight:700;
            font-size:.82rem;
            letter-spacing:.5px;
            text-transform:uppercase;
            padding:7px 16px;
            border-radius:999px;
            margin-bottom:16px;
        }
        .section-head h2{
            font-size:clamp(1.6rem, 3.2vw, 2.4rem);
            font-weight:900;
            line-height:1.25;
            letter-spacing:-.4px;
            margin:0 0 16px;
            color:var(--brand-jade);
        }
        .section-head p{
            font-size:1rem;
            color:#456052;
            margin:0;
        }
        .tips-grid{
            display:grid;
            grid-template-columns:repeat(3,1fr);
            gap:22px;
        }
        .tip-card{
            background:var(--brand-white);
            border:1px solid rgba(10,46,28,.1);
            border-radius:var(--radius-lg);
            padding:28px 24px;
            transition:var(--transition);
            box-shadow:0 4px 16px rgba(10,46,28,.06);
            display:flex;
            flex-direction:column;
            position:relative;
            overflow:hidden;
        }
        .tip-card::before{
            content:"";
            position:absolute;
            top:0; left:0; right:0;
            height:4px;
            background:linear-gradient(90deg,var(--brand-gold),var(--brand-teal-bright));
            opacity:0;
            transition:var(--transition);
        }
        .tip-card:hover{
            transform:translateY(-5px);
            box-shadow:0 18px 40px rgba(10,46,28,.14);
            border-color:var(--brand-gold-border);
        }
        .tip-card:hover::before{opacity:1;}
        .tip-icon{
            width:52px; height:52px;
            border-radius:16px;
            background:linear-gradient(135deg, var(--brand-jade), var(--brand-teal));
            color:var(--brand-gold);
            display:flex; align-items:center; justify-content:center;
            font-size:1.4rem;
            margin-bottom:18px;
            box-shadow:0 8px 18px rgba(13,107,92,.28);
        }
        .tip-card h3{
            font-size:1.2rem;
            font-weight:800;
            letter-spacing:-.2px;
            margin:0 0 10px;
            color:var(--brand-jade);
        }
        .tip-card p{
            font-size:.95rem;
            color:#456052;
            line-height:1.6;
            margin:0 0 18px;
            flex:1;
        }
        .tip-tag{
            align-self:flex-start;
            background:rgba(10,46,28,.06);
            color:var(--brand-teal);
            font-weight:700;
            font-size:.8rem;
            padding:6px 14px;
            border-radius:999px;
            border:1px solid rgba(10,46,28,.12);
        }

        /* ==================== COMPARISON ==================== */
        .compare-section{
            padding:90px 0;
            background:var(--brand-ocean);
            color:var(--brand-white);
        }
        .compare-grid{
            display:grid;
            grid-template-columns:minmax(0,420px) minmax(0,1fr);
            gap:50px;
            align-items:center;
        }
        .compare-visual{
            border-radius:var(--radius-xl);
            overflow:hidden;
            border:2px solid var(--brand-gold-border);
            box-shadow:0 20px 50px rgba(0,0,0,.45);
        }
        .compare-visual img{
            width:100%;
            height:100%;
            object-fit:cover;
            aspect-ratio:4/4.4;
        }
        .compare-content .section-tag{
            background:rgba(255,215,0,.12);
            border-color:var(--brand-gold-border);
            color:var(--brand-gold);
        }
        .compare-content h2{
            font-size:clamp(1.5rem, 3vw, 2.3rem);
            font-weight:900;
            line-height:1.25;
            letter-spacing:-.4px;
            margin:0 0 28px;
            color:var(--brand-white);
        }
        .compare-panels{
            display:grid;
            grid-template-columns:repeat(2,1fr);
            gap:18px;
        }
        .panel{
            border-radius:var(--radius-lg);
            padding:24px;
            min-height:100%;
        }
        .panel-bad{
            background:rgba(255,255,255,.05);
            border:1px solid rgba(255,82,82,.4);
        }
        .panel-good{
            background:rgba(255,215,0,.1);
            border:1px solid var(--brand-gold-border);
        }
        .panel h4{
            font-size:1.05rem;
            font-weight:800;
            margin:0 0 14px;
            display:flex;
            align-items:center;
            gap:8px;
        }
        .panel-bad h4{color:var(--brand-red-soft);}
        .panel-good h4{color:var(--brand-gold);}
        .panel ul li{
            padding:8px 0 8px 24px;
            position:relative;
            font-size:.92rem;
            color:var(--brand-mint);
            line-height:1.55;
        }
        .panel-bad ul li::before{
            content:"✕";
            position:absolute; left:0; top:8px;
            color:var(--brand-red-soft);
            font-weight:700;
        }
        .panel-good ul li::before{
            content:"✔";
            position:absolute; left:0; top:8px;
            color:var(--brand-gold);
            font-weight:700;
        }

        /* ==================== FAQ ==================== */
        .faq-section{
            padding:90px 0;
            background:var(--brand-cloud);
            color:var(--brand-jade);
        }
        .faq-accordion{
            max-width:880px;
            margin:0 auto;
        }
        .faq-accordion .accordion-item{
            background:var(--brand-white);
            border:1px solid rgba(10,46,28,.1);
            border-radius:var(--radius-md);
            margin-bottom:14px;
            overflow:hidden;
            box-shadow:0 4px 14px rgba(10,46,28,.05);
            transition:var(--transition);
        }
        .faq-accordion .accordion-item:hover{
            border-color:var(--brand-gold-border);
            box-shadow:0 10px 26px rgba(10,46,28,.12);
        }
        .faq-accordion .accordion-button{
            background:var(--brand-white);
            color:var(--brand-jade);
            font-weight:800;
            font-size:1.02rem;
            padding:20px 24px;
            border:none;
            box-shadow:none;
            border-radius:var(--radius-md);
        }
        .faq-accordion .accordion-button:not(.collapsed){
            background:var(--brand-jade);
            color:var(--brand-gold);
            border-bottom-left-radius:0;
            border-bottom-right-radius:0;
        }
        .faq-accordion .accordion-button::after{
            filter:invert(1) sepia(1) saturate(500%) hue-rotate(8deg);
        }
        .faq-accordion .accordion-button:focus{
            box-shadow:0 0 0 4px rgba(255,215,0,.35);
        }
        .faq-accordion .accordion-body{
            font-size:.98rem;
            color:#456052;
            line-height:1.7;
            padding:18px 24px 24px;
        }

        /* ==================== CTA / FORM ==================== */
        .code-section{
            padding:90px 0;
            background:var(--brand-jade);
            color:var(--brand-white);
        }
        .cta-card{
            display:grid;
            grid-template-columns:minmax(0,1.2fr) minmax(280px,420px);
            gap:40px;
            align-items:center;
            background:linear-gradient(150deg, rgba(255,255,255,.07), rgba(0,0,0,.22));
            border:1px solid var(--brand-gold-border);
            border-radius:var(--radius-xl);
            padding:clamp(26px, 4vw, 50px);
            box-shadow:0 24px 60px rgba(0,0,0,.4);
        }
        .cta-content h2{
            font-size:clamp(1.5rem, 3vw, 2.3rem);
            font-weight:900;
            line-height:1.25;
            letter-spacing:-.4px;
            margin:0 0 16px;
            color:var(--brand-gold);
        }
        .cta-content p{
            font-size:1.02rem;
            color:var(--brand-mint);
            max-width:560px;
            margin:0 0 26px;
        }
        .cta-form{
            display:flex;
            gap:12px;
            flex-wrap:wrap;
            margin-bottom:16px;
        }
        .cta-form input{
            flex:1;
            min-width:220px;
            padding:15px 20px;
            border-radius:14px;
            border:1px solid rgba(255,255,255,.2);
            background:rgba(255,255,255,.08);
            color:var(--brand-white);
            font-size:1rem;
            font-family:var(--font-body);
            outline:none;
            transition:var(--transition);
        }
        .cta-form input::placeholder{color:rgba(209,242,235,.6);}
        .cta-form input:focus{
            border-color:var(--brand-gold);
            box-shadow:0 0 0 4px rgba(255,215,0,.2);
        }
        .cta-form button{
            padding:15px 26px;
            border-radius:14px;
            border:none;
            background:linear-gradient(135deg,var(--brand-gold),var(--brand-gold-dark));
            color:var(--brand-jade);
            font-weight:800;
            font-size:1rem;
            cursor:pointer;
            white-space:nowrap;
            transition:var(--transition);
            font-family:var(--font-body);
        }
        .cta-form button:hover{
            transform:translateY(-2px);
            box-shadow:0 12px 26px rgba(255,215,0,.4);
        }
        .cta-form button:focus-visible{
            outline:3px solid rgba(255,215,0,.6);
            outline-offset:2px;
        }
        .cta-note{
            font-size:.88rem;
            color:var(--brand-mint);
            display:flex;
            align-items:center;
            gap:8px;
            flex-wrap:wrap;
        }
        .cta-note i{color:var(--brand-gold);}
        .cta-image{
            border-radius:var(--radius-lg);
            overflow:hidden;
            border:2px solid var(--brand-gold-border);
            box-shadow:0 16px 40px rgba(0,0,0,.35);
        }
        .cta-image img{
            width:100%;
            height:auto;
            object-fit:cover;
            aspect-ratio:4/3;
        }
        .form-success{
            display:none;
            margin-top:14px;
            padding:14px 18px;
            border-radius:var(--radius-md);
            background:rgba(255,215,0,.15);
            border:1px solid var(--brand-gold-border);
            color:var(--brand-gold);
            font-weight:700;
            font-size:.95rem;
        }
        .form-success.open{display:block; animation:menuFade .3s ease;}

        /* ==================== FOOTER ==================== */
        .site-footer{
            background:#071F12;
            color:var(--brand-mint);
            padding:70px 0 30px;
            border-top:1px solid var(--brand-gold-border);
        }
        .footer-grid{
            display:grid;
            grid-template-columns:1.6fr 1fr 1fr 1fr;
            gap:40px;
            margin-bottom:50px;
        }
        .footer-brand p{
            font-size:.95rem;
            color:rgba(209,242,235,.78);
            line-height:1.7;
            margin:18px 0 22px;
            max-width:340px;
        }
        .footer-payment{
            display:flex;
            flex-wrap:wrap;
            gap:10px;
        }
        .payment-badge{
            display:inline-flex;
            align-items:center;
            gap:7px;
            background:rgba(255,255,255,.06);
            border:1px solid rgba(255,255,255,.14);
            color:var(--brand-gold);
            font-weight:700;
            font-size:.82rem;
            padding:8px 14px;
            border-radius:999px;
        }
        .payment-badge i{color:var(--brand-gold);}
        .footer-col h4{
            font-size:1rem;
            font-weight:800;
            color:var(--brand-gold);
            margin:0 0 18px;
        }
        .footer-col ul li{margin-bottom:10px;}
        .footer-col ul a{
            color:rgba(209,242,235,.8);
            font-size:.93rem;
            transition:var(--transition);
        }
        .footer-col ul a:hover{
            color:var(--brand-gold);
            padding-left:4px;
        }
        .footer-bottom{
            display:flex;
            align-items:center;
            justify-content:space-between;
            gap:16px;
            flex-wrap:wrap;
            padding-top:24px;
            border-top:1px solid rgba(255,255,255,.12);
        }
        .footer-copy{
            font-size:.9rem;
            color:rgba(209,242,235,.65);
        }
        .footer-trust{
            display:flex;
            align-items:center;
            gap:8px;
            font-size:.86rem;
            color:rgba(209,242,235,.7);
        }
        .footer-trust i{color:var(--brand-gold);}

        /* ==================== FAB ROYAL ==================== */
        .fab-royal{
            position:fixed;
            left:16px;
            bottom:96px;
            z-index:50;
            width:58px; height:58px;
            border-radius:50%;
            background:linear-gradient(145deg, #1A1919, #0D0C0C);
            border:3px solid var(--brand-gold);
            display:flex; align-items:center; justify-content:center;
            color:var(--brand-gold);
            font-size:1.35rem;
            box-shadow:0 4px 20px rgba(255,215,0,.3);
            cursor:pointer;
            opacity:.7;
            transition:var(--transition);
            animation:fabFloat 2.6s ease-in-out infinite;
        }
        .fab-royal:hover{
            opacity:1;
            transform:scale(1.1);
            box-shadow:0 8px 28px rgba(255,215,0,.5);
        }
        .fab-royal:active{
            transform:scale(.95) translateY(2px);
        }
        .fab-royal:focus-visible{
            outline:3px solid rgba(255,215,0,.6);
            outline-offset:3px;
        }
        @keyframes fabFloat{
            0%,100%{transform:translateY(0);}
            50%{transform:translateY(-6px);}
        }
        .fab-dot{
            position:absolute;
            top:-2px; right:-2px;
            width:16px; height:16px;
            border-radius:50%;
            background:var(--brand-red);
            border:2px solid #071F12;
            animation:dotPulse 1.4s ease-in-out infinite;
        }
        @keyframes dotPulse{
            0%,100%{box-shadow:0 0 0 0 rgba(211,47,47,.6);}
            50%{box-shadow:0 0 0 8px rgba(211,47,47,0);}
        }

        /* ==================== RESPONSIVE ==================== */
        @media (max-width: 1024px){
            .tips-grid{grid-template-columns:repeat(2,1fr);}
            .metrics-grid{grid-template-columns:repeat(2,1fr);}
            .cta-card{grid-template-columns:1fr; gap:32px;}
        }
        @media (max-width: 768px){
            .navbar-custom{height:64px;}
            .nav-links-desktop{display:none;}
            .btn-login{padding:9px 14px; font-size:.86rem;}
            .btn-signup{padding:9px 14px; font-size:.86rem;}
            .navbar-toggler-custom{display:flex; align-items:center; justify-content:center;}
            .hero-cat{padding-top:130px; min-height:auto;}
            .hero-stage{
                grid-template-columns:1fr;
                gap:22px;
                margin-bottom:30px;
            }
            .stage-center{
                order:-1;
                max-width:340px;
                margin:0 auto;
                width:100%;
            }
            .stage-size{aspect-ratio:4/4.4;}
            .stage-side{
                flex-direction:row;
                flex-wrap:wrap;
                justify-content:center;
            }
            .value-chip{padding:10px 14px; font-size:.84rem; flex:1; min-width:160px; justify-content:center;}
            .compare-grid{grid-template-columns:1fr; gap:32px;}
            .compare-panels{grid-template-columns:1fr;}
            .footer-grid{grid-template-columns:1fr; gap:28px;}
            .cta-form{flex-direction:column;}
            .cta-form input{min-width:100%;}
            .cta-form button{width:100%;}
            .hero-cat-title{font-size:1.8rem;}
        }
        @media (max-width: 520px){
            .container-custom{padding-left:16px; padding-right:16px;}
            .brand-icon{width:36px; height:36px; font-size:1rem; border-radius:10px;}
            .navbar-brand-custom{font-size:1rem; gap:8px;}
            .btn-login{display:inline-flex; align-items:center; padding:8px 12px; font-size:.82rem;}
            .btn-signup{display:inline-flex; align-items:center; padding:8px 12px; font-size:.82rem;}
            .nav-actions{gap:6px;}
            .hero-cat{padding-top:120px; padding-bottom:60px;}
            .hero-cat-title{font-size:1.55rem;}
            .hero-cat-sub{font-size:.95rem;}
            .metrics-grid{grid-template-columns:1fr 1fr; gap:12px;}
            .metric-card{padding:18px 12px;}
            .metric-value{font-size:1.6rem;}
            .metric-label{font-size:.82rem;}
            .tips-grid{grid-template-columns:1fr; gap:16px;}
            .tip-card{padding:22px 18px;}
            .compare-section{padding:60px 0;}
            .faq-section{padding:60px 0;}
            .code-section{padding:60px 0;}
            .cta-card{padding:24px 18px; border-radius:var(--radius-lg);}
            .cta-content h2{font-size:1.4rem;}
            .fab-royal{width:50px; height:50px; font-size:1.15rem; left:12px; bottom:80px;}
            .footer-bottom{flex-direction:column; text-align:center;}
        }