/* roulang page: index */
:root {
            --jungle-deep: #0B3C25;
            --jungle-forest: #062315;
            --sunny-gold: #FFD700;
            --lime-fresh: #32CD32;
            --pale-mint: #C5E2D2;
            --white: #FFFFFF;
            --warm-white: #FFFDF0;
            --gold-soft: #FEF08A;
            --crimson: #D32F2F;
            --charcoal: #1C1C1E;
            --obsidian: #121212;
            --silver-muted: #CBD5E1;
            --radius-md: 0.75rem;
            --radius-lg: 1.25rem;
            --radius-xl: 1.75rem;
            --radius-4xl: 2rem;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.12);
            --shadow-md: 0 8px 24px rgba(0,0,0,0.18);
            --shadow-lg: 0 20px 40px -8px rgba(0,0,0,0.35);
            --shadow-gold: 0 4px 18px rgba(255,215,0,0.3);
            --shadow-green: 0 6px 18px rgba(50,205,50,0.2);
            --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.4s cubic-bezier(0.22, 1, 0.36, 1);
        }

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

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

        body {
            font-family: 'Be Vietnam Pro', system-ui, -apple-system, sans-serif;
            background: var(--jungle-forest);
            color: var(--white);
            line-height: 1.65;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        :focus-visible {
            outline: 3px solid var(--sunny-gold);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .container {
            width: 100%;
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        @media (min-width: 640px) {
            .container {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

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

        /* Header / Nav */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 80;
            background: rgba(6, 35, 21, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(255, 215, 0, 0.18);
            transition: var(--transition-smooth);
        }

        .site-header.scrolled {
            background: rgba(6, 35, 21, 0.98);
            box-shadow: 0 8px 28px -8px rgba(0,0,0,0.5);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 72px;
            gap: 1rem;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 0.65rem;
            font-weight: 800;
            font-size: 1.05rem;
            line-height: 1.2;
            letter-spacing: -0.01em;
            color: var(--sunny-gold);
            max-width: 260px;
        }

        .nav-logo i {
            font-size: 1.5rem;
            color: var(--sunny-gold);
            text-shadow: 0 0 12px rgba(255,215,0,0.5);
        }

        .nav-logo span {
            display: inline-block;
            vertical-align: middle;
        }

        .nav-menu {
            display: none;
            align-items: center;
            gap: 0.35rem;
        }

        .nav-menu a {
            position: relative;
            display: inline-flex;
            align-items: center;
            padding: 0.55rem 0.9rem;
            border-radius: 9999px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--pale-mint);
            transition: var(--transition-base);
        }

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

        .nav-menu a.active {
            color: var(--jungle-forest);
            background: var(--sunny-gold);
            box-shadow: var(--shadow-gold);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            border-radius: 9999px;
            font-weight: 700;
            font-size: 0.9rem;
            padding: 0.55rem 1.15rem;
            transition: var(--transition-base);
            white-space: nowrap;
            border: 1px solid transparent;
        }

        .btn-login {
            background: transparent;
            color: var(--white);
            border-color: rgba(255,255,255,0.25);
        }

        .btn-login:hover {
            background: rgba(255,255,255,0.08);
            border-color: rgba(255,255,255,0.45);
        }

        .btn-signup {
            background: var(--sunny-gold);
            color: var(--jungle-forest);
            border-color: var(--sunny-gold);
            box-shadow: var(--shadow-gold);
        }

        .btn-signup:hover {
            background: #FFE14D;
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(255,215,0,0.45);
        }

        .btn-primary {
            background: var(--sunny-gold);
            color: var(--jungle-forest);
            border-color: var(--sunny-gold);
            box-shadow: var(--shadow-gold);
        }

        .btn-primary:hover {
            background: #FFE14D;
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(255,215,0,0.5);
        }

        .btn-outline {
            background: transparent;
            color: var(--white);
            border-color: rgba(255,255,255,0.35);
        }

        .btn-outline:hover {
            background: rgba(255,255,255,0.08);
            border-color: rgba(255,255,255,0.65);
            transform: translateY(-2px);
        }

        .btn-danger {
            background: var(--crimson);
            color: var(--white);
            border-color: var(--crimson);
            box-shadow: 0 8px 18px rgba(211,47,47,0.25);
        }

        .btn-danger:hover {
            background: #B71C1C;
            transform: translateY(-2px);
            box-shadow: 0 12px 24px rgba(211,47,47,0.35);
        }

        .btn-glow {
            background: linear-gradient(135deg, #FFD700 0%, #FF9F00 100%);
            color: #062315;
            border: none;
            box-shadow: 0 10px 26px rgba(255,215,0,0.4);
        }

        .btn-glow:hover {
            background: linear-gradient(135deg, #FFE14D 0%, #FFBF00 100%);
            transform: translateY(-3px) scale(1.02);
            box-shadow: 0 18px 34px rgba(255,215,0,0.55);
        }

        .mobile-toggle {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(255,255,255,0.06);
            color: var(--white);
            font-size: 1.3rem;
            border: 1px solid rgba(255,255,255,0.15);
            transition: var(--transition-base);
        }

        .mobile-toggle:hover {
            background: rgba(255,255,255,0.12);
        }

        .mobile-menu {
            display: none;
            flex-direction: column;
            gap: 0.25rem;
            background: rgba(6, 35, 21, 0.98);
            border-top: 1px solid rgba(255,215,0,0.2);
            padding: 1rem 1.25rem 1.25rem;
        }

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

        .mobile-menu a {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.8rem 0.9rem;
            border-radius: 12px;
            font-weight: 600;
            color: var(--pale-mint);
            background: transparent;
            transition: var(--transition-base);
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            background: rgba(255,215,0,0.1);
            color: var(--sunny-gold);
        }

        @media (min-width: 1024px) {
            .nav-menu {
                display: flex;
            }
            .mobile-toggle {
                display: none;
            }
            .header-inner {
                min-height: 76px;
            }
        }

        /* Hero Section */
        .hero-section {
            position: relative;
            padding: 8rem 0 5rem;
            background:
                radial-gradient(circle at 15% 30%, rgba(255,215,0,0.18) 0%, transparent 40%),
                radial-gradient(circle at 85% 20%, rgba(50,205,50,0.15) 0%, transparent 45%),
                linear-gradient(160deg, #0B3C25 0%, #062315 80%);
            overflow: hidden;
        }

        .hero-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.2;
            z-index: 0;
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr;
            gap: 2.5rem;
            align-items: center;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255,215,0,0.12);
            border: 1px solid rgba(255,215,0,0.35);
            color: var(--sunny-gold);
            font-weight: 700;
            font-size: 0.75rem;
            padding: 0.35rem 0.85rem;
            border-radius: 9999px;
            letter-spacing: 0.02em;
            text-transform: uppercase;
        }

        .hero-title {
            font-size: 2.25rem;
            line-height: 1.15;
            font-weight: 900;
            letter-spacing: -0.02em;
            color: var(--white);
            margin-top: 1rem;
            margin-bottom: 1rem;
        }

        .hero-title .gold-text {
            color: var(--sunny-gold);
            text-shadow: 0 0 18px rgba(255,215,0,0.4);
        }

        .hero-desc {
            font-size: 1rem;
            color: var(--pale-mint);
            max-width: 620px;
            margin-bottom: 1.5rem;
            line-height: 1.7;
        }

        .hero-progress-card {
            background: rgba(6, 35, 21, 0.85);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid rgba(255,255,255,0.12);
            border-radius: var(--radius-4xl);
            padding: 1.5rem;
            box-shadow: var(--shadow-lg);
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .progress-ring-wrap {
            display: flex;
            align-items: center;
            gap: 1.25rem;
        }

        .progress-ring {
            width: 90px;
            height: 90px;
            border-radius: 50%;
            background: conic-gradient(var(--sunny-gold) 0deg 265deg, rgba(255,255,255,0.08) 265deg 360deg);
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            flex-shrink: 0;
        }

        .progress-ring::before {
            content: "";
            position: absolute;
            inset: 8px;
            border-radius: 50%;
            background: #062315;
        }

        .progress-ring span {
            position: relative;
            z-index: 2;
            font-weight: 800;
            font-size: 1.3rem;
            color: var(--sunny-gold);
        }

        .progress-info h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 0.25rem;
        }

        .progress-info p {
            font-size: 0.85rem;
            color: var(--pale-mint);
        }

        .hero-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 0.75rem;
        }

        .hero-stat {
            background: rgba(255,255,255,0.04);
            border: 1px solid rgba(255,255,255,0.08);
            border-radius: 1rem;
            padding: 0.8rem;
            text-align: center;
        }

        .hero-stat .stat-value {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--sunny-gold);
            display: block;
            line-height: 1.1;
        }

        .hero-stat .stat-label {
            font-size: 0.7rem;
            color: var(--pale-mint);
            text-transform: uppercase;
            letter-spacing: 0.04em;
            margin-top: 0.2rem;
        }

        .tier-preview {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
        }

        .tier-chip {
            background: rgba(255,255,255,0.06);
            border: 1px solid rgba(255,215,0,0.25);
            color: var(--white);
            font-weight: 600;
            font-size: 0.8rem;
            padding: 0.45rem 0.85rem;
            border-radius: 9999px;
            transition: var(--transition-base);
        }

        .tier-chip:hover {
            background: rgba(255,215,0,0.15);
            border-color: var(--sunny-gold);
            color: var(--sunny-gold);
        }

        @media (min-width: 768px) {
            .hero-section {
                padding: 9rem 0 6rem;
            }
            .hero-title {
                font-size: 3rem;
            }
            .hero-content {
                grid-template-columns: 1.1fr 0.9fr;
                gap: 3rem;
            }
        }

        @media (min-width: 1024px) {
            .hero-title {
                font-size: 3.6rem;
            }
            .hero-desc {
                font-size: 1.05rem;
            }
        }

        /* Section Base */
        .section {
            padding: 4.5rem 0;
            position: relative;
        }

        .section-subtitle {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-weight: 700;
            font-size: 0.8rem;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--sunny-gold);
            background: rgba(255,215,0,0.08);
            padding: 0.35rem 0.8rem;
            border-radius: 9999px;
            margin-bottom: 0.8rem;
        }

        .section-title {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.01em;
            color: var(--white);
            margin-bottom: 0.9rem;
            line-height: 1.2;
        }

        .section-desc {
            font-size: 0.95rem;
            color: var(--pale-mint);
            max-width: 680px;
            margin-bottom: 2.5rem;
            line-height: 1.7;
        }

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

        @media (min-width: 768px) {
            .section {
                padding: 5.5rem 0;
            }
            .section-title {
                font-size: 2.2rem;
            }
        }

        /* Feature Cards / Grid */
        .feature-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.25rem;
        }

        .feature-card {
            background: rgba(255,255,255,0.035);
            border: 1px solid rgba(255,255,255,0.1);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            transition: var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .feature-card:hover {
            background: rgba(255,255,255,0.06);
            border-color: rgba(255,215,0,0.4);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .feature-card .icon-box {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: rgba(255,215,0,0.12);
            color: var(--sunny-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            margin-bottom: 1rem;
        }

        .feature-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 0.5rem;
        }

        .feature-card p {
            font-size: 0.85rem;
            color: var(--pale-mint);
            line-height: 1.6;
        }

        @media (min-width: 640px) {
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.5rem;
            }
        }

        @media (min-width: 1024px) {
            .feature-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        /* Data Metric Row */
        .metric-row {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1rem;
        }

        .metric-card {
            background: rgba(255,255,255,0.04);
            border: 1px solid rgba(255,215,0,0.2);
            border-radius: var(--radius-lg);
            padding: 1.25rem;
            text-align: left;
            transition: var(--transition-base);
        }

        .metric-card:hover {
            border-color: var(--sunny-gold);
            background: rgba(255,215,0,0.06);
        }

        .metric-card .metric-value {
            font-size: 1.7rem;
            font-weight: 800;
            color: var(--sunny-gold);
            line-height: 1.1;
            margin-bottom: 0.2rem;
        }

        .metric-card .metric-label {
            font-size: 0.8rem;
            color: var(--pale-mint);
            font-weight: 500;
        }

        @media (min-width: 768px) {
            .metric-row {
                grid-template-columns: repeat(4, 1fr);
                gap: 1.25rem;
            }
            .metric-card .metric-value {
                font-size: 2rem;
            }
        }

        /* Steps / Timeline */
        .step-list {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.25rem;
        }

        .step-item {
            display: flex;
            gap: 1rem;
            background: rgba(255,255,255,0.035);
            border: 1px solid rgba(255,255,255,0.08);
            border-radius: var(--radius-lg);
            padding: 1.25rem;
            transition: var(--transition-base);
        }

        .step-item:hover {
            border-color: rgba(50,205,50,0.35);
            background: rgba(50,205,50,0.04);
        }

        .step-number {
            flex-shrink: 0;
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: var(--lime-fresh);
            color: #062315;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
        }

        .step-item h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 0.25rem;
        }

        .step-item p {
            font-size: 0.85rem;
            color: var(--pale-mint);
        }

        @media (min-width: 768px) {
            .step-list {
                grid-template-columns: repeat(3, 1fr);
                gap: 1.5rem;
            }
        }

        /* Comparison Table */
        .comparison-table-wrap {
            background: rgba(255,255,255,0.04);
            border: 1px solid rgba(255,255,255,0.1);
            border-radius: var(--radius-xl);
            overflow-x: auto;
            box-shadow: var(--shadow-md);
        }

        .comparison-table {
            width: 100%;
            min-width: 720px;
            border-collapse: collapse;
            font-size: 0.9rem;
        }

        .comparison-table th,
        .comparison-table td {
            padding: 1rem 1.25rem;
            text-align: left;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }

        .comparison-table thead th {
            background: rgba(255,215,0,0.08);
            color: var(--sunny-gold);
            font-weight: 700;
            font-size: 0.8rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

        .comparison-table tbody tr:hover {
            background: rgba(255,255,255,0.03);
        }

        .comparison-table .highlight-col {
            background: rgba(255,215,0,0.08);
            color: var(--sunny-gold);
            font-weight: 700;
        }

        .badge-check {
            color: var(--lime-fresh);
            font-size: 1rem;
        }

        .badge-x {
            color: var(--crimson);
            font-weight: 700;
        }

        /* Testimonial / Review */
        .review-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.25rem;
        }

        .review-card {
            background: rgba(255,255,255,0.04);
            border: 1px solid rgba(255,255,255,0.1);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
            transition: var(--transition-base);
        }

        .review-card:hover {
            border-color: rgba(255,215,0,0.35);
            transform: translateY(-3px);
        }

        .review-stars {
            color: var(--sunny-gold);
            font-size: 0.9rem;
        }

        .review-text {
            font-size: 0.85rem;
            color: var(--pale-mint);
            line-height: 1.6;
        }

        .review-author {
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--white);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .review-author i {
            color: var(--sunny-gold);
        }

        @media (min-width: 768px) {
            .review-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.5rem;
            }
        }

        @media (min-width: 1024px) {
            .review-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        /* Event / Campaign */
        .campaign-banner {
            background: linear-gradient(135deg, rgba(255,215,0,0.1) 0%, rgba(211,47,47,0.08) 100%);
            border: 1px solid rgba(255,215,0,0.4);
            border-radius: var(--radius-4xl);
            padding: 2rem;
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.5rem;
            align-items: center;
            position: relative;
            overflow: hidden;
        }

        .campaign-banner::after {
            content: "";
            position: absolute;
            top: -40%;
            right: -10%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(255,215,0,0.25) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .campaign-banner h3 {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--sunny-gold);
            margin-bottom: 0.5rem;
        }

        .campaign-banner p {
            font-size: 0.9rem;
            color: var(--pale-mint);
            max-width: 540px;
        }

        @media (min-width: 768px) {
            .campaign-banner {
                grid-template-columns: 1.2fr 0.8fr;
                padding: 2.5rem;
            }
            .campaign-banner h3 {
                font-size: 1.7rem;
            }
        }

        /* Timeline / Content Preview */
        .preview-timeline {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1rem;
        }

        .preview-card {
            background: rgba(255,255,255,0.035);
            border-left: 4px solid var(--sunny-gold);
            border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
            padding: 1.25rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 1rem;
            transition: var(--transition-base);
        }

        .preview-card:hover {
            background: rgba(255,255,255,0.06);
            border-left-color: var(--lime-fresh);
        }

        .preview-date {
            font-weight: 700;
            color: var(--sunny-gold);
            font-size: 0.8rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            min-width: 80px;
        }

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

        .preview-info p {
            font-size: 0.8rem;
            color: var(--pale-mint);
        }

        .preview-tag {
            margin-left: auto;
            background: rgba(255,215,0,0.1);
            color: var(--sunny-gold);
            font-weight: 600;
            font-size: 0.7rem;
            padding: 0.25rem 0.7rem;
            border-radius: 9999px;
            white-space: nowrap;
        }

        @media (min-width: 768px) {
            .preview-timeline {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.25rem;
            }
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
            max-width: 820px;
        }

        .faq-item {
            background: rgba(255,255,255,0.035);
            border: 1px solid rgba(255,255,255,0.1);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition-base);
        }

        .faq-item:hover {
            border-color: rgba(255,215,0,0.3);
        }

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 1.25rem 1.5rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--white);
            background: transparent;
            transition: var(--transition-base);
        }

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

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

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

        .faq-answer {
            padding: 0 1.5rem 1.25rem;
            font-size: 0.85rem;
            color: var(--pale-mint);
            line-height: 1.65;
            display: none;
        }

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

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, #0B3C25 0%, #062315 100%);
            border-top: 1px solid rgba(255,215,0,0.2);
            border-bottom: 1px solid rgba(255,215,0,0.2);
            padding: 4rem 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.15;
            z-index: 0;
        }

        .cta-content {
            position: relative;
            z-index: 2;
            text-align: left;
            max-width: 720px;
        }

        .cta-content h2 {
            font-size: 1.9rem;
            font-weight: 800;
            color: var(--white);
            margin-bottom: 0.8rem;
        }

        .cta-content p {
            font-size: 0.95rem;
            color: var(--pale-mint);
            margin-bottom: 1.5rem;
            max-width: 560px;
        }

        /* Footer */
        .site-footer {
            background: #04160D;
            border-top: 1px solid rgba(255,215,0,0.15);
            padding: 3.5rem 0 1.5rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
            margin-bottom: 2.5rem;
        }

        .footer-brand h3 {
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--sunny-gold);
            margin-bottom: 0.75rem;
            line-height: 1.3;
        }

        .footer-brand p {
            font-size: 0.8rem;
            color: var(--pale-mint);
            max-width: 340px;
            line-height: 1.6;
        }

        .footer-links h4 {
            font-size: 0.85rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--white);
            margin-bottom: 1rem;
        }

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

        .footer-links a {
            font-size: 0.85rem;
            color: var(--pale-mint);
            transition: var(--transition-base);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 1.5rem;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
            font-size: 0.75rem;
            color: var(--silver-muted);
        }

        .footer-bottom .legal-links {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
        }

        .footer-bottom .legal-links a {
            color: var(--silver-muted);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .footer-bottom .legal-links a:hover {
            color: var(--sunny-gold);
        }

        @media (min-width: 768px) {
            .footer-grid {
                grid-template-columns: 1.3fr 1fr 1fr;
                gap: 2.5rem;
            }
            .footer-bottom {
                flex-direction: row;
                justify-content: space-between;
                align-items: center;
            }
        }

        /* FAB */
        .fab-left {
            position: fixed;
            left: 1rem;
            bottom: 5rem;
            z-index: 70;
            width: 54px;
            height: 54px;
            border-radius: 50%;
            background: linear-gradient(135deg, #1C1C1E 0%, #0B0B0B 100%);
            border: 2px solid var(--sunny-gold);
            box-shadow: 0 4px 20px rgba(255,215,0,0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--sunny-gold);
            font-size: 1.4rem;
            opacity: 0.7;
            animation: fabFloat 3s ease-in-out infinite;
            transition: var(--transition-smooth);
            cursor: pointer;
        }

        .fab-left:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 8px 28px rgba(255,215,0,0.55);
        }

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

        .fab-left .notification-dot {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            background: #D32F2F;
            border-radius: 50%;
            border: 2px solid #0B0B0B;
            animation: blinkDot 1.6s infinite;
        }

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

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

        /* Utility */
        .divider {
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(255,215,0,0.4), transparent);
            margin: 1.5rem 0;
            border: none;
        }

        .text-gold { color: var(--sunny-gold); }
        .text-mint { color: var(--pale-mint); }
        .font-black { font-weight: 900; }

        .grid-gap-sm { gap: 0.75rem; }
        .mt-0 { margin-top: 0; }
        .mb-0 { margin-bottom: 0; }

        @media (max-width: 640px) {
            .btn {
                font-size: 0.8rem;
                padding: 0.5rem 0.9rem;
            }
            .btn-login, .btn-signup {
                display: inline-flex;
            }
            .hero-title {
                font-size: 2rem;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .fab-left {
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
                bottom: 4rem;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #0F0C20;
            --bg-secondary: #0B1A30;
            --bg-card: #131028;
            --bg-card-alt: #151233;
            --accent-lime: #CCFF00;
            --accent-cyan: #00F0FF;
            --accent-deep: #0088CC;
            --text-primary: #FFFFFF;
            --text-secondary: #A6ACAF;
            --text-muted: #6B7280;
            --border-color: rgba(0, 240, 255, 0.15);
            --border-hover: rgba(0, 240, 255, 0.45);
            --border-lime: rgba(204, 255, 0, 0.35);
            --shadow-glow-cyan: 0 0 15px rgba(0, 240, 255, 0.5);
            --shadow-glow-cyan-lg: 0 0 30px rgba(0, 240, 255, 0.35);
            --shadow-glow-lime: 0 0 20px rgba(204, 255, 0, 0.3);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --radius-xl: 30px;
            --spacing-section: 80px;
            --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-body: 'Segoe UI', 'Inter', 'Roboto', system-ui, -apple-system, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

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

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

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

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 3px solid var(--accent-cyan);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 clamp(16px, 4vw, 32px);
        }

        /* ===== HEADER / NAV ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(15, 12, 32, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-color);
            transition: background var(--transition-base), box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            background: rgba(15, 12, 32, 0.98);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.45);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            min-height: 68px;
            padding-top: 10px;
            padding-bottom: 10px;
        }

        .logo {
            font-size: 1.15rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
            max-width: 42ch;
            line-height: 1.3;
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-deep));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 1.1rem;
            color: var(--bg-primary);
            box-shadow: var(--shadow-glow-cyan);
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .nav-menu::-webkit-scrollbar {
            display: none;
        }

        .nav-menu a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-secondary);
            white-space: nowrap;
            transition: all var(--transition-base);
            border: 1px solid transparent;
        }

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

        .nav-menu a.active {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.12);
            border-color: rgba(0, 240, 255, 0.25);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .btn-ghost {
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-primary);
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.2);
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .btn-ghost:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.06);
        }

        .btn-solid {
            padding: 8px 20px;
            border-radius: 999px;
            font-size: 0.85rem;
            font-weight: 700;
            color: #0F0C20;
            background: linear-gradient(135deg, var(--accent-lime), #99EE00);
            box-shadow: 0 4px 16px rgba(204, 255, 0, 0.3);
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .btn-solid:hover {
            box-shadow: 0 8px 28px rgba(204, 255, 0, 0.45);
            transform: translateY(-2px);
        }

        .mobile-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-color);
            color: var(--text-primary);
            font-size: 1.2rem;
            align-items: center;
            justify-content: center;
            transition: all var(--transition-base);
            flex-shrink: 0;
        }

        .mobile-toggle:hover {
            background: rgba(0, 240, 255, 0.1);
            border-color: var(--border-hover);
        }

        .mobile-menu {
            display: none;
            padding: 16px 20px 20px;
            background: rgba(15, 12, 32, 0.99);
            border-top: 1px solid var(--border-color);
        }

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

        .mobile-menu nav {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .mobile-menu nav a {
            padding: 12px 16px;
            border-radius: 10px;
            font-weight: 600;
            color: var(--text-secondary);
            border: 1px solid transparent;
            transition: all var(--transition-base);
        }

        .mobile-menu nav a:hover,
        .mobile-menu nav a.active {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.1);
            border-color: rgba(0, 240, 255, 0.2);
        }

        /* ===== BUTTONS ===== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 14px 30px;
            border-radius: 999px;
            font-size: 1rem;
            font-weight: 700;
            color: #0F0C20;
            background: linear-gradient(135deg, var(--accent-lime), #99EE00);
            box-shadow: 0 4px 18px rgba(204, 255, 0, 0.3);
            transition: all var(--transition-base);
            border: none;
        }

        .btn-primary:hover {
            box-shadow: 0 8px 30px rgba(204, 255, 0, 0.5);
            transform: translateY(-3px) scale(1.02);
        }

        .btn-primary:active {
            transform: translateY(0) scale(0.97);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 14px 30px;
            border-radius: 999px;
            font-size: 1rem;
            font-weight: 700;
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.08);
            border: 1.5px solid rgba(0, 240, 255, 0.5);
            transition: all var(--transition-base);
        }

        .btn-secondary:hover {
            background: rgba(0, 240, 255, 0.18);
            border-color: var(--accent-cyan);
            box-shadow: var(--shadow-glow-cyan);
            transform: translateY(-3px);
        }

        .btn-secondary:active {
            transform: translateY(0) scale(0.97);
        }

        /* ===== HERO ===== */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            padding: 120px 0 80px;
            background-image: linear-gradient(rgba(15, 12, 32, 0.85), rgba(11, 26, 48, 0.9)), url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
        }

        .hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(0, 240, 255, 0.12) 0%, transparent 60%),
                radial-gradient(ellipse at 75% 40%, rgba(204, 255, 0, 0.08) 0%, transparent 55%);
            pointer-events: none;
        }

        .hero .container {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .hero-content {
            max-width: 620px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            background: rgba(0, 240, 255, 0.1);
            border: 1px solid rgba(0, 240, 255, 0.35);
            border-radius: 999px;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--accent-cyan);
            letter-spacing: 0.02em;
            margin-bottom: 20px;
        }

        .hero-badge i {
            font-size: 0.7rem;
            animation: pulse-badge 2s ease-in-out infinite;
        }

        @keyframes pulse-badge {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.2); }
        }

        .hero h1 {
            font-size: clamp(2rem, 4.5vw, 3.1rem);
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.03em;
            margin-bottom: 20px;
            text-wrap: balance;
        }

        .hero h1 .highlight {
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }

        .hero-subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 550px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 32px;
        }

        .trust-strip {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 20px;
            align-items: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }

        .trust-strip-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-secondary);
        }

        .trust-strip-item i {
            color: var(--accent-cyan);
            font-size: 0.9rem;
        }

        .hero-visual {
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .hero-visual-card {
            width: 100%;
            max-width: 460px;
            background: rgba(19, 16, 40, 0.85);
            backdrop-filter: blur(10px);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5), var(--shadow-glow-cyan-lg);
            position: relative;
            overflow: hidden;
        }

        .hero-visual-card::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -40%;
            width: 80%;
            height: 150%;
            background: radial-gradient(circle, rgba(0, 240, 255, 0.15) 0%, transparent 70%);
            pointer-events: none;
            transform: rotate(35deg);
        }

        .hero-visual-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-primary);
            position: relative;
        }

        .hero-visual-card p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            margin-bottom: 20px;
            position: relative;
        }

        .hero-visual-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            position: relative;
        }

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

        .hero-visual-label {
            font-size: 0.85rem;
            color: var(--text-secondary);
        }

        .hero-visual-value {
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--accent-cyan);
        }

        .hero-visual-value.lime {
            color: var(--accent-lime);
        }

        /* ===== SECTIONS ===== */
        .section {
            padding: var(--spacing-section) 0;
        }

        .section-alt {
            background: var(--bg-secondary);
        }

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

        .section-heading h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 14px;
            line-height: 1.25;
        }

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

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.75rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            color: var(--accent-lime);
            margin-bottom: 12px;
        }

        .section-tag i {
            font-size: 0.65rem;
        }

        /* ===== METRICS ===== */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .metric-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            position: relative;
            overflow: hidden;
            transition: all var(--transition-base);
        }

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

        .metric-card::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-cyan), var(--accent-lime));
            opacity: 0;
            transition: opacity var(--transition-base);
        }

        .metric-card:hover::after {
            opacity: 1;
        }

        .metric-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(0, 240, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 1.2rem;
            margin-bottom: 16px;
        }

        .metric-number {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            line-height: 1.1;
            margin-bottom: 6px;
        }

        .metric-number.lime {
            color: var(--accent-lime);
        }

        .metric-label {
            font-size: 0.85rem;
            color: var(--text-secondary);
        }

        /* ===== CRITERIA ===== */
        .criteria-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .criteria-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: 14px;
            position: relative;
        }

        .criteria-card:hover {
            border-color: var(--border-lime);
            box-shadow: var(--shadow-glow-lime);
        }

        .criteria-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: linear-gradient(135deg, rgba(204, 255, 0, 0.15), rgba(0, 240, 255, 0.08));
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-lime);
            font-size: 1.3rem;
        }

        .criteria-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.3;
        }

        .criteria-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        /* ===== COMPARISON ===== */
        .comparison-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .portal-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .portal-card:hover {
            border-color: var(--border-hover);
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.45), var(--shadow-glow-cyan);
            transform: translateY(-6px);
        }

        .portal-card-img {
            position: relative;
            height: 190px;
            overflow: hidden;
        }

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

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

        .portal-card-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(19, 16, 40, 0.9) 0%, transparent 50%);
        }

        .portal-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            z-index: 2;
            padding: 6px 14px;
            background: linear-gradient(135deg, var(--accent-lime), #99EE00);
            color: #0F0C20;
            font-size: 0.75rem;
            font-weight: 800;
            border-radius: 999px;
            letter-spacing: 0.02em;
        }

        .portal-rating-badge {
            position: absolute;
            top: 16px;
            right: 16px;
            z-index: 2;
            padding: 6px 12px;
            background: rgba(0, 0, 0, 0.7);
            backdrop-filter: blur(8px);
            color: var(--accent-lime);
            font-size: 0.8rem;
            font-weight: 700;
            border-radius: 999px;
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .portal-card-body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            gap: 14px;
            flex: 1;
        }

        .portal-card-body h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-primary);
        }

        .portal-card-desc {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .portal-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 10px 16px;
            padding: 14px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.07);
            border-bottom: 1px solid rgba(255, 255, 255, 0.07);
        }

        .portal-meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.8rem;
            color: var(--text-secondary);
        }

        .portal-meta-item i {
            color: var(--accent-cyan);
            font-size: 0.8rem;
        }

        .portal-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            margin-top: auto;
        }

        .btn-portal {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            border-radius: 999px;
            font-size: 0.85rem;
            font-weight: 700;
            color: #0F0C20;
            background: linear-gradient(135deg, var(--accent-lime), #99EE00);
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .btn-portal:hover {
            box-shadow: 0 6px 24px rgba(204, 255, 0, 0.4);
            transform: translateY(-2px);
        }

        /* ===== PROCESS ===== */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            counter-reset: step;
        }

        .process-step {
            position: relative;
            padding: 28px 24px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            counter-increment: step;
            transition: all var(--transition-base);
        }

        .process-step:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-glow-cyan);
        }

        .process-step::before {
            content: counter(step, decimal-leading-zero);
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1;
            display: block;
            margin-bottom: 16px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }

        .process-step h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
        }

        .process-step p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

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

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

        .faq-item.active {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-glow-cyan);
        }

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

        .faq-question i {
            color: var(--accent-cyan);
            font-size: 0.9rem;
            transition: transform var(--transition-base);
            flex-shrink: 0;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .faq-item.active .faq-answer {
            max-height: 400px;
        }

        .faq-answer-inner {
            padding: 0 24px 22px;
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.7;
        }

        /* ===== CTA / FORM ===== */
        .cta-section {
            position: relative;
            background-image: linear-gradient(rgba(15, 12, 32, 0.9), rgba(11, 26, 48, 0.95)), url('/assets/images/backpic/back-3.jpg');
            background-size: cover;
            background-position: center;
            padding: var(--spacing-section) 0;
        }

        .cta-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .cta-content h2 {
            font-size: clamp(1.7rem, 3vw, 2.3rem);
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.25;
            margin-bottom: 16px;
        }

        .cta-content p {
            color: var(--text-secondary);
            font-size: 1.05rem;
            line-height: 1.7;
            margin-bottom: 24px;
        }

        .cta-points {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .cta-point {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.92rem;
            color: var(--text-secondary);
        }

        .cta-point i {
            color: var(--accent-lime);
            font-size: 0.9rem;
        }

        .cta-form-card {
            background: rgba(19, 16, 40, 0.9);
            backdrop-filter: blur(12px);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 32px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
        }

        .cta-form-card h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .cta-form-card .form-subtitle {
            color: var(--text-secondary);
            font-size: 0.9rem;
            margin-bottom: 24px;
        }

        .form-group {
            margin-bottom: 18px;
        }

        .form-group label {
            display: block;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--text-secondary);
            margin-bottom: 7px;
        }

        .form-group input,
        .form-group select {
            width: 100%;
            padding: 12px 16px;
            background: rgba(15, 12, 32, 0.7);
            border: 1px solid var(--border-color);
            border-radius: 10px;
            color: var(--text-primary);
            font-size: 0.95rem;
            transition: all var(--transition-base);
        }

        .form-group input:focus,
        .form-group select:focus {
            border-color: var(--accent-cyan);
            box-shadow: 0 0 0 3px rgba(0, 240, 255, 0.15);
            outline: none;
        }

        .form-group input::placeholder {
            color: var(--text-muted);
        }

        .form-group select option {
            background: var(--bg-card);
            color: var(--text-primary);
        }

        .form-submit {
            width: 100%;
            padding: 14px 24px;
            border-radius: 999px;
            font-size: 1rem;
            font-weight: 700;
            color: #0F0C20;
            background: linear-gradient(135deg, var(--accent-lime), #99EE00);
            box-shadow: 0 4px 18px rgba(204, 255, 0, 0.3);
            transition: all var(--transition-base);
            border: none;
            margin-top: 6px;
        }

        .form-submit:hover {
            box-shadow: 0 8px 30px rgba(204, 255, 0, 0.5);
            transform: translateY(-2px);
        }

        .form-success {
            display: none;
            padding: 14px 18px;
            background: rgba(204, 255, 0, 0.12);
            border: 1px solid rgba(204, 255, 0, 0.3);
            border-radius: 10px;
            color: var(--accent-lime);
            font-size: 0.9rem;
            font-weight: 600;
            margin-top: 16px;
            text-align: center;
        }

        /* ===== FOOTER ===== */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            padding: 56px 0 28px;
        }

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

        .footer-brand h3 {
            font-size: 1.1rem;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 12px;
            color: var(--text-primary);
        }

        .footer-brand p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 380px;
        }

        .footer-links h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .footer-links ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            font-size: 0.85rem;
            color: var(--text-secondary);
            transition: all var(--transition-base);
        }

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 14px;
            padding-top: 22px;
            border-top: 1px solid rgba(255, 255, 255, 0.07);
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .legal-links {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        .legal-links a {
            color: var(--text-muted);
            transition: all var(--transition-base);
        }

        .legal-links a:hover {
            color: var(--accent-cyan);
        }

        /* ===== FAB ===== */
        .fab {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 900;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 999px;
            background: rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 2px solid transparent;
            background-clip: padding-box;
            box-shadow: var(--shadow-glow-cyan), 0 8px 24px rgba(0, 0, 0, 0.4);
            transition: all var(--transition-base);
            opacity: 0.6;
            cursor: pointer;
            border-image: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime)) 1;
        }

        .fab i {
            font-size: 1.5rem;
            color: var(--accent-cyan);
            transition: all var(--transition-base);
        }

        .fab .fab-notification {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 12px;
            height: 12px;
            background: #FF007F;
            border-radius: 50%;
            border: 2px solid var(--bg-primary);
            animation: fab-blink 1.6s ease-in-out infinite;
        }

        @keyframes fab-blink {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.3; transform: scale(1.15); }
        }

        .fab:hover {
            opacity: 1;
            transform: scale(1.12);
            box-shadow: 0 0 30px rgba(0, 240, 255, 0.7), 0 8px 24px rgba(0, 0, 0, 0.5);
        }

        .fab:hover i {
            animation: fab-flicker 0.6s ease-in-out;
        }

        @keyframes fab-flicker {
            0% { opacity: 1; transform: scale(1); }
            25% { opacity: 0.3; transform: scale(0.9); }
            50% { opacity: 1; transform: scale(1.1); }
            75% { opacity: 0.5; transform: scale(0.95); }
            100% { opacity: 1; transform: scale(1); }
        }

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

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

            .hero-visual {
                order: -1;
            }

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

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

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

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

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --spacing-section: 56px;
            }

            .header-inner {
                min-height: 60px;
                gap: 10px;
            }

            .logo {
                font-size: 0.95rem;
                max-width: 30ch;
            }

            .logo-icon {
                width: 32px;
                height: 32px;
                border-radius: 8px;
                font-size: 0.9rem;
            }

            .nav-menu {
                display: none;
            }

            .mobile-toggle {
                display: flex;
            }

            .header-actions {
                gap: 6px;
            }

            .btn-ghost {
                padding: 6px 12px;
                font-size: 0.78rem;
            }

            .btn-solid {
                padding: 6px 14px;
                font-size: 0.78rem;
            }

            .hero {
                padding: 100px 0 60px;
                min-height: auto;
            }

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

            .hero-subtitle {
                font-size: 0.95rem;
            }

            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .btn-primary,
            .btn-secondary {
                width: 100%;
                padding: 13px 20px;
                font-size: 0.92rem;
            }

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

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

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

            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

            .metric-card {
                padding: 20px 16px;
            }

            .metric-number {
                font-size: 1.5rem;
            }

            .cta-form-card {
                padding: 22px 18px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 10px;
            }

            .legal-links {
                justify-content: center;
            }

            .fab {
                width: 48px;
                height: 48px;
                bottom: 80px;
                left: 12px;
            }

            .fab i {
                font-size: 1.3rem;
            }
        }

        @media (max-width: 520px) {
            .metrics-grid {
                grid-template-columns: 1fr;
            }

            .header-actions .btn-ghost {
                display: inline-flex;
            }

            .header-actions .btn-solid {
                display: inline-flex;
            }

            .logo {
                font-size: 0.85rem;
                max-width: 24ch;
            }

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

/* roulang page: article */
:root{
            --primary-dark:#0A2E1C;
            --primary:#123E25;
            --accent-gold:#FFD700;
            --accent-red:#D32F2F;
            --text-white:#FFFFFF;
            --text-mint:#D1F2EB;
            --text-muted:#A6ACAF;
            --border-gold:rgba(255,215,0,0.3);
            --shadow-gold:0 4px 20px rgba(255,215,0,0.3);
            --radius-sm:12px;
            --radius-md:16px;
            --radius-lg:24px;
        }
        *{
            box-sizing:border-box;
            margin:0;
            padding:0;
        }
        html{
            scroll-behavior:smooth;
        }
        body{
            font-family:'Be Vietnam Pro',sans-serif;
            background-color:var(--primary-dark);
            color:var(--text-white);
            line-height:1.6;
            -webkit-font-smoothing:antialiased;
        }
        a{
            text-decoration:none;
            color:inherit;
        }
        img{
            max-width:100%;
            display:block;
        }
        button,input{
            font-family:inherit;
        }
        .container{
            max-width:1200px;
            margin:0 auto;
            padding:0 16px;
        }

        /* Header */
        .site-header{
            position:fixed;
            top:0;
            left:0;
            right:0;
            z-index:50;
            background:rgba(10,46,28,0.95);
            backdrop-filter:blur(10px);
            border-bottom:1px solid var(--border-gold);
        }
        .header-inner{
            display:flex;
            align-items:center;
            justify-content:space-between;
            gap:16px;
            height:72px;
        }
        .brand-logo{
            display:flex;
            align-items:center;
            gap:8px;
            font-weight:800;
            font-size:1.4rem;
            color:var(--accent-gold);
            white-space:nowrap;
            letter-spacing:0.02em;
        }
        .brand-logo .brand-full{
            display:inline;
        }
        .brand-logo .brand-short{
            display:none;
        }
        .nav-menu{
            display:flex;
            gap:20px;
            overflow-x:auto;
            white-space:nowrap;
            scrollbar-width:none;
            -ms-overflow-style:none;
        }
        .nav-menu::-webkit-scrollbar{
            display:none;
        }
        .nav-menu a{
            color:var(--text-mint);
            font-weight:500;
            padding:8px 0;
            position:relative;
            transition:color 0.2s;
        }
        .nav-menu a:hover,
        .nav-menu a:focus{
            color:var(--accent-gold);
        }
        .nav-menu a.active{
            color:var(--accent-gold);
        }
        .nav-menu a.active::after{
            content:'';
            position:absolute;
            bottom:-2px;
            left:0;
            right:0;
            height:2px;
            background:var(--accent-gold);
            border-radius:2px;
        }
        .header-actions{
            display:flex;
            align-items:center;
            gap:10px;
            flex-shrink:0;
        }
        .btn-login,
        .btn-signup{
            padding:9px 18px;
            border-radius:999px;
            font-weight:600;
            font-size:0.95rem;
            transition:transform 0.2s, box-shadow 0.2s, background 0.2s;
            white-space:nowrap;
        }
        .btn-login{
            color:var(--text-white);
            border:1px solid rgba(255,255,255,0.35);
        }
        .btn-login:hover{
            border-color:var(--accent-gold);
            color:var(--accent-gold);
        }
        .btn-signup{
            background:var(--accent-gold);
            color:var(--primary-dark);
            border:none;
            box-shadow:var(--shadow-gold);
        }
        .btn-signup:hover{
            transform:translateY(-2px);
            box-shadow:0 8px 25px rgba(255,215,0,0.45);
        }
        .btn-signup:active,
        .btn-login:active{
            transform:translateY(0);
            opacity:0.9;
        }

        /* Main */
        .article-main{
            padding-top:110px;
            padding-bottom:60px;
        }
        .breadcrumb{
            display:flex;
            flex-wrap:wrap;
            gap:8px;
            align-items:center;
            margin-bottom:24px;
            color:var(--text-muted);
            font-size:0.9rem;
        }
        .breadcrumb a{
            color:var(--text-muted);
            transition:color 0.2s;
        }
        .breadcrumb a:hover{
            color:var(--accent-gold);
        }
        .breadcrumb .sep{
            color:var(--text-muted);
        }
        .article-header{
            margin-bottom:32px;
        }
        .article-meta{
            display:flex;
            flex-wrap:wrap;
            align-items:center;
            gap:12px;
            margin-bottom:12px;
        }
        .category-badge{
            background:var(--accent-red);
            color:white;
            padding:4px 14px;
            border-radius:999px;
            font-weight:700;
            font-size:0.8rem;
            letter-spacing:0.03em;
        }
        .article-date{
            color:var(--text-muted);
            font-size:0.9rem;
            display:flex;
            align-items:center;
            gap:6px;
        }
        .article-header h1{
            font-size:clamp(1.8rem,4vw,2.8rem);
            font-weight:800;
            color:var(--accent-gold);
            line-height:1.3;
            margin-bottom:12px;
        }
        .article-excerpt{
            color:var(--text-mint);
            font-size:1.06rem;
            line-height:1.6;
            max-width:900px;
        }
        .article-featured-img{
            width:100%;
            border-radius:var(--radius-lg);
            margin-top:20px;
            box-shadow:0 12px 35px rgba(0,0,0,0.5);
            border:1px solid var(--border-gold);
        }

        /* Article body */
        .article-body{
            margin-top:32px;
            margin-bottom:48px;
        }
        .article-content{
            color:var(--text-mint);
            font-size:1.05rem;
            line-height:1.7;
        }
        .article-content h2{
            font-size:1.8rem;
            font-weight:800;
            color:var(--accent-gold);
            margin:2em 0 0.8em;
        }
        .article-content h3{
            font-size:1.4rem;
            font-weight:700;
            color:var(--accent-gold);
            margin:1.5em 0 0.6em;
        }
        .article-content p{
            margin-bottom:1.2em;
        }
        .article-content ul,
        .article-content ol{
            margin:0 0 1.5em 1.4em;
        }
        .article-content li{
            margin-bottom:0.6em;
        }
        .article-content img{
            border-radius:var(--radius-md);
            margin:1.5em 0;
        }
        .article-content a{
            color:var(--accent-gold);
            text-decoration:underline;
        }
        .empty-state{
            background:rgba(18,62,37,0.5);
            border:1px solid var(--border-gold);
            border-radius:var(--radius-lg);
            padding:48px 24px;
            text-align:center;
        }
        .empty-state i{
            font-size:3rem;
            color:var(--accent-gold);
            margin-bottom:16px;
        }
        .empty-state h2{
            font-size:1.8rem;
            color:var(--accent-gold);
            margin-bottom:8px;
        }
        .empty-state p{
            color:var(--text-mint);
            margin-bottom:24px;
        }
        .btn-gold{
            display:inline-block;
            background:var(--accent-gold);
            color:var(--primary-dark);
            font-weight:700;
            padding:12px 28px;
            border-radius:999px;
            transition:transform 0.2s, box-shadow 0.2s;
            box-shadow:var(--shadow-gold);
        }
        .btn-gold:hover{
            transform:translateY(-2px);
            box-shadow:0 8px 25px rgba(255,215,0,0.45);
        }

        /* Metrics strip */
        .metrics-strip{
            display:grid;
            grid-template-columns:repeat(4,1fr);
            gap:16px;
            margin:48px 0;
        }
        .metric-item{
            background:rgba(18,62,37,0.6);
            border:1px solid var(--border-gold);
            border-radius:var(--radius-md);
            padding:20px;
            text-align:center;
            transition:transform 0.2s, border-color 0.2s;
        }
        .metric-item:hover{
            transform:translateY(-4px);
            border-color:var(--accent-gold);
        }
        .metric-icon{
            font-size:2rem;
            color:var(--accent-gold);
            margin-bottom:10px;
        }
        .metric-value{
            font-size:1.8rem;
            font-weight:800;
            color:var(--accent-gold);
            line-height:1.2;
        }
        .metric-label{
            color:var(--text-mint);
            font-size:0.95rem;
            margin-top:6px;
        }

        /* Trust matrix */
        .trust-matrix{
            margin:48px 0;
            display:grid;
            grid-template-columns:repeat(3,1fr);
            gap:24px;
        }
        .trust-item{
            border-left:3px solid var(--accent-gold);
            padding-left:20px;
            padding-top:4px;
            padding-bottom:4px;
        }
        .trust-item i{
            font-size:1.6rem;
            color:var(--accent-gold);
            margin-bottom:12px;
        }
        .trust-item h3{
            font-size:1.2rem;
            font-weight:700;
            color:var(--accent-gold);
            margin-bottom:8px;
        }
        .trust-item p{
            color:var(--text-mint);
            font-size:0.98rem;
            line-height:1.6;
        }

        /* FAQ */
        .faq-section{
            margin:48px 0;
        }
        .faq-item{
            border-bottom:1px solid rgba(255,255,255,0.15);
            padding:18px 0;
        }
        .faq-question{
            display:flex;
            justify-content:space-between;
            align-items:center;
            gap:16px;
            font-weight:700;
            font-size:1.05rem;
            color:var(--text-white);
            cursor:pointer;
            transition:color 0.2s;
            background:none;
            border:none;
            width:100%;
            text-align:left;
        }
        .faq-question:hover{
            color:var(--accent-gold);
        }
        .faq-question i{
            transition:transform 0.3s;
            color:var(--accent-gold);
            flex-shrink:0;
        }
        .faq-answer{
            max-height:0;
            overflow:hidden;
            transition:max-height 0.4s ease;
            color:var(--text-mint);
            line-height:1.6;
        }
        .faq-item.open .faq-answer{
            max-height:600px;
            padding-top:12px;
        }
        .faq-item.open .faq-question i{
            transform:rotate(180deg);
        }

        /* CTA Form */
        .cta-form-section{
            margin:48px 0;
            background:linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border:1px solid var(--border-gold);
            border-radius:var(--radius-lg);
            padding:40px;
            display:grid;
            grid-template-columns:1.2fr 1fr;
            gap:30px;
            align-items:center;
        }
        .cta-form-section h2{
            font-size:1.8rem;
            font-weight:800;
            color:var(--accent-gold);
            margin-bottom:12px;
        }
        .cta-form-section p{
            color:var(--text-mint);
            line-height:1.6;
        }
        .cta-form label{
            display:block;
            color:var(--text-mint);
            font-weight:600;
            margin-bottom:8px;
            font-size:0.95rem;
        }
        .cta-form input{
            width:100%;
            padding:14px 18px;
            border-radius:var(--radius-sm);
            border:1px solid rgba(255,255,255,0.25);
            background:rgba(0,0,0,0.3);
            color:white;
            font-size:1rem;
            outline:none;
            transition:border-color 0.2s, box-shadow 0.2s;
        }
        .cta-form input:focus{
            border-color:var(--accent-gold);
            box-shadow:0 0 0 3px rgba(255,215,0,0.2);
        }
        .cta-form button{
            width:100%;
            margin-top:16px;
            background:var(--accent-gold);
            color:var(--primary-dark);
            font-weight:700;
            padding:14px;
            border:none;
            border-radius:var(--radius-sm);
            font-size:1rem;
            cursor:pointer;
            transition:transform 0.2s, box-shadow 0.2s;
        }
        .cta-form button:hover{
            transform:translateY(-2px);
            box-shadow:var(--shadow-gold);
        }

        /* Footer */
        .site-footer{
            background:var(--primary-dark);
            border-top:1px solid var(--border-gold);
            padding:40px 0 20px;
            color:var(--text-mint);
        }
        .footer-grid{
            display:grid;
            grid-template-columns:2fr 1fr 1fr;
            gap:30px;
            margin-bottom:30px;
        }
        .footer-brand h3{
            color:var(--accent-gold);
            font-size:1.2rem;
            margin-bottom:12px;
        }
        .footer-brand p{
            color:var(--text-mint);
            font-size:0.95rem;
            line-height:1.6;
        }
        .footer-links h4{
            color:var(--accent-gold);
            margin-bottom:12px;
            font-size:1rem;
        }
        .footer-links ul{
            list-style:none;
            padding:0;
        }
        .footer-links li{
            margin:6px 0;
        }
        .footer-links a{
            color:var(--text-mint);
            transition:color 0.2s;
        }
        .footer-links a:hover{
            color:var(--accent-gold);
        }
        .footer-bottom{
            border-top:1px solid rgba(255,255,255,0.1);
            padding-top:20px;
            display:flex;
            justify-content:space-between;
            align-items:center;
            flex-wrap:wrap;
            gap:12px;
            font-size:0.9rem;
            color:var(--text-muted);
        }
        .legal-links{
            display:flex;
            gap:20px;
            flex-wrap:wrap;
        }
        .legal-links a{
            color:var(--text-muted);
            transition:color 0.2s;
        }
        .legal-links a:hover{
            color:var(--accent-gold);
        }

        /* FAB */
        .fab{
            position:fixed;
            left:16px;
            bottom:96px;
            z-index:120;
            width:56px;
            height:56px;
            border-radius:50%;
            background:radial-gradient(circle at 30% 30%, #4a4a4a, #1c1c1e);
            border:3px solid var(--accent-gold);
            box-shadow:var(--shadow-gold);
            display:flex;
            align-items:center;
            justify-content:center;
            color:var(--accent-gold);
            font-size:24px;
            animation:fabFloat 3s ease-in-out infinite;
            transition:transform 0.3s, opacity 0.3s, box-shadow 0.3s;
            cursor:pointer;
        }
        .fab:hover{
            scale:1.1;
            opacity:1;
            box-shadow:0 8px 25px rgba(255,215,0,0.55);
            animation-play-state:paused;
        }
        .fab:active{
            scale:0.95;
        }
        .fab .notification-dot{
            position:absolute;
            top:-2px;
            right:-2px;
            width:14px;
            height:14px;
            background:#ff0033;
            border-radius:50%;
            border:2px solid #1c1c1e;
            animation:blink 1.4s infinite;
        }
        @keyframes fabFloat{
            0%,100%{transform:translateY(0);}
            50%{transform:translateY(-8px);}
        }
        @keyframes blink{
            0%,100%{opacity:1;}
            50%{opacity:0.2;}
        }

        /* Responsive */
        @media (max-width: 1024px){
            .metrics-strip{
                grid-template-columns:repeat(2,1fr);
            }
            .trust-matrix{
                grid-template-columns:1fr;
            }
            .cta-form-section{
                grid-template-columns:1fr;
            }
            .header-inner{
                gap:8px;
            }
        }
        @media (max-width: 768px){
            .brand-logo .brand-full{
                display:none;
            }
            .brand-logo .brand-short{
                display:inline;
            }
            .nav-menu{
                gap:14px;
                font-size:0.95rem;
            }
            .header-actions .btn-login{
                padding:7px 14px;
                font-size:0.85rem;
            }
            .header-actions .btn-signup{
                padding:7px 14px;
                font-size:0.85rem;
            }
            .footer-grid{
                grid-template-columns:1fr;
                gap:24px;
            }
            .footer-bottom{
                flex-direction:column;
                align-items:flex-start;
            }
            .cta-form-section{
                padding:24px;
            }
        }
        @media (max-width: 520px){
            .header-inner{
                height:60px;
            }
            .article-main{
                padding-top:90px;
            }
            .metrics-strip{
                grid-template-columns:1fr;
            }
            .article-header h1{
                font-size:1.6rem;
            }
            .category-badge{
                font-size:0.7rem;
                padding:3px 10px;
            }
            .btn-login,
            .btn-signup{
                padding:6px 10px;
                font-size:0.8rem;
            }
        }

/* roulang page: category2 */
/* ============================================================
           DESIGN VARIABLES — Style H: Tropical Rainforest & Golden Sun
           ============================================================ */
        :root {
            --clr-primary: #0B3C25;
            --clr-primary-dark: #062315;
            --clr-primary-deeper: #041710;
            --clr-accent: #FFCC00;
            --clr-accent-soft: #FFE566;
            --clr-lime: #32CD32;
            --clr-lime-soft: #7BED7B;
            --clr-text: #FFFDF0;
            --clr-text-muted: #C5E2D2;
            --clr-cardcard-bg: #0B3C25;
            --clr-card-border: rgba(255, 204, 0, 0.28);
            --clr-card-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
            --radius-sm: 12px;
            --radius-md: 18px;
            --radius-lg: 26px;
            --shadow-soft: 0 6px 16px rgba(0,0,0,0.25);
            --shadow-glow: 0 0 20px rgba(50, 205, 50, 0.25);
            --font-body: 'Segoe UI', 'Inter', 'Be Vietnam Pro', system-ui, sans-serif;
            --space-1: 0.5rem;
            --space-2: 1rem;
            --space-3: 1.5rem;
            --space-4: 2.5rem;
            --space-5: 4rem;
        }

        /* ---------- Reset & Base ---------- */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-body);
            background: radial-gradient(circle at 10% 20%, #0B3C25 0%, #062315 45%, #041710 100%);
            color: var(--clr-text);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            padding-top: 84px; /* offset for fixed header */
        }
        a { color: inherit; text-decoration: none; transition: color 0.2s ease; }
        a:hover { color: var(--clr-accent); }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea { font-family: inherit; }
        button:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible {
            outline: 3px solid var(--clr-accent);
            outline-offset: 3px;
            border-radius: 4px;
        }

        .container { max-width: 1200px; margin-inline: auto; padding-inline: 1.5rem; }

        /* ---------- Header & Navigation ---------- */
        .site-header {
            position: fixed;
            top: 0; left: 0; right: 0;
            z-index: 1000;
            background: rgba(6, 35, 21, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 204, 0, 0.2);
            transition: all 0.3s ease;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1.5rem;
            height: 84px;
        }
        .logo {
            font-size: 1.35rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: var(--clr-text);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .logo-icon {
            width: 38px; height: 38px;
            background: linear-gradient(145deg, #FFCC00, #FFE566);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #062315;
            font-size: 1.1rem;
            box-shadow: 0 0 12px rgba(255, 204, 0, 0.6);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 0.3rem;
            flex-wrap: nowrap;
        }
        .nav-menu a {
            padding: 0.5rem 0.85rem;
            font-weight: 500;
            font-size: 0.95rem;
            border-radius: 30px;
            color: var(--clr-text-muted);
            position: relative;
            white-space: nowrap;
        }
        .nav-menu a:hover { color: var(--clr-text); background: rgba(255,255,255,0.06); }
        .nav-menu a.active {
            color: var(--clr-accent);
            background: rgba(255, 204, 0, 0.1);
            font-weight: 600;
        }
        .nav-menu a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 3px;
            background: var(--clr-accent);
            border-radius: 2px;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.4rem;
            padding: 0.65rem 1.35rem;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all 0.25s ease;
            cursor: pointer;
            border: none;
            text-align: center;
        }
        .btn-primary {
            background: linear-gradient(145deg, #FFCC00, #FFE566);
            color: #062315;
            box-shadow: 0 6px 18px rgba(255, 204, 0, 0.35);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(255, 204, 0, 0.5);
            color: #062315;
        }
        .btn-outline {
            background: transparent;
            border: 1.5px solid var(--clr-accent);
            color: var(--clr-accent);
            padding: 0.55rem 1.25rem;
        }
        .btn-outline:hover {
            background: rgba(255, 204, 0, 0.1);
            color: var(--clr-accent);
        }
        .btn-ghost {
            background: transparent;
            color: var(--clr-text-muted);
            padding: 0.55rem 0.8rem;
        }
        .btn-ghost:hover { color: var(--clr-text); background: rgba(255,255,255,0.08); }
        .btn-lg { padding: 0.85rem 1.8rem; font-size: 1rem; }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--clr-text);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 0.5rem;
        }

        /* ---------- Hero Bento ---------- */
        .hero-bento {
            display: grid;
            grid-template-columns: 1.4fr 0.8fr;
            grid-template-rows: auto;
            gap: 1.5rem;
            padding: 4rem 0 3rem;
        }
        .bento-main {
            grid-row: span 2;
            background: linear-gradient(135deg, rgba(255,255,255,0.05), rgba(255,255,255,0.02));
            border: 1px solid rgba(255, 204, 0, 0.3);
            border-radius: var(--radius-lg);
            padding: 3rem 2.5rem;
            display: flex;
            flex-direction: column;
            justify-content: center;
            position: relative;
            overflow: hidden;
        }
        .bento-main::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -30%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255,204,0,0.12), transparent 70%);
            pointer-events: none;
        }
        .bento-title {
            font-size: 2.8rem;
            line-height: 1.2;
            font-weight: 700;
            letter-spacing: -0.02em;
            margin-bottom: 1.2rem;
            color: var(--clr-text);
        }
        .bento-title span { color: var(--clr-accent); }
        .bento-desc {
            font-size: 1.1rem;
            color: var(--clr-text-muted);
            max-width: 500px;
            margin-bottom: 2rem;
        }
        .bento-cta {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
        }
        .bento-sub {
            background: rgba(255, 204, 0, 0.08);
            border: 1px solid rgba(255, 204, 0, 0.25);
            border-radius: var(--radius-md);
            padding: 2rem;
            display: flex;
            flex-direction: column;
            justify-content: center;
            transition: all 0.3s ease;
        }
        .bento-sub:hover {
            background: rgba(255, 204, 0, 0.12);
            transform: translateY(-4px);
            box-shadow: var(--shadow-glow);
        }
        .bento-sub h3 { font-size: 1.25rem; margin-bottom: 0.5rem; color: var(--clr-accent); }
        .bento-sub p { font-size: 0.95rem; color: var(--clr-text-muted); line-height: 1.5; }
        .bento-sub .icon-large { font-size: 2rem; margin-bottom: 0.8rem; color: var(--clr-accent); }

        /* ---------- Section Common ---------- */
        .section { padding: 4rem 0; }
        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 2.5rem;
            gap: 1rem;
        }
        .section-title {
            font-size: 2.2rem;
            font-weight: 700;
            letter-spacing: -0.01em;
            color: var(--clr-text);
        }
        .section-lead {
            font-size: 1rem;
            color: var(--clr-text-muted);
            max-width: 500px;
        }

        /* Metrics Board */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }
        .metric-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 204, 0, 0.2);
            border-radius: var(--radius-md);
            padding: 1.8rem 1.5rem;
            text-align: left;
            transition: all 0.3s ease;
        }
        .metric-card:hover {
            background: rgba(255, 204, 0, 0.08);
            border-color: rgba(255, 204, 0, 0.5);
        }
        .metric-value {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--clr-accent);
            line-height: 1.1;
            margin-bottom: 0.3rem;
        }
        .metric-label {
            font-size: 0.9rem;
            color: var(--clr-text-muted);
        }

        /* Service Matrix */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }
        .service-card {
            background: linear-gradient(160deg, rgba(255,255,255,0.06), rgba(255,255,255,0.02));
            border: 1px solid rgba(255, 204, 0, 0.25);
            border-radius: var(--radius-md);
            padding: 2rem 1.8rem;
            transition: all 0.3s ease;
        }
        .service-card:hover {
            transform: translateY(-6px);
            border-color: var(--clr-accent);
            box-shadow: 0 14px 30px rgba(0,0,0,0.3);
        }
        .service-icon {
            width: 48px;
            height: 48px;
            background: rgba(255, 204, 0, 0.15);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--clr-accent);
            margin-bottom: 1.2rem;
        }
        .service-card h3 { font-size: 1.25rem; margin-bottom: 0.75rem; color: var(--clr-text); }
        .service-card p { font-size: 0.95rem; color: var(--clr-text-muted); line-height: 1.6; }

        /* Comparison Table */
        .comparison-wrap {
            overflow-x: auto;
            border-radius: var(--radius-md);
            border: 1px solid rgba(255, 204, 0, 0.2);
            background: rgba(255,255,255,0.03);
        }
        .comparison-table {
            width: 100%;
            min-width: 680px;
            border-collapse: collapse;
            font-size: 0.95rem;
        }
        .comparison-table th, .comparison-table td {
            padding: 1.1rem 1.5rem;
            text-align: left;
            border-bottom: 1px solid rgba(255, 204, 0, 0.1);
        }
        .comparison-table th {
            background: rgba(255, 204, 0, 0.1);
            color: var(--clr-accent);
            font-weight: 600;
            letter-spacing: 0.02em;
        }
        .comparison-table td { color: var(--clr-text-muted); }
        .comparison-table tr:last-child td { border-bottom: none; }
        .comparison-table tr:hover td {
            background: rgba(255, 204, 0, 0.04);
            color: var(--clr-text);
        }
        .highlight-green { color: var(--clr-lime) !important; font-weight: 600; }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            border: 1px solid rgba(255, 204, 0, 0.25);
            border-radius: var(--radius-md);
            margin-bottom: 1rem;
            background: rgba(255, 255, 255, 0.03);
            overflow: hidden;
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1.2rem 1.5rem;
            background: none;
            border: none;
            color: var(--clr-text);
            font-size: 1.05rem;
            font-weight: 600;
            cursor: pointer;
            text-align: left;
            gap: 1rem;
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            color: var(--clr-accent);
            transition: transform 0.3s ease;
        }
        .faq-item.open .faq-icon { transform: rotate(180deg); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
            padding: 0 1.5rem;
            color: var(--clr-text-muted);
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: 1.2rem;
        }

        /* CTA Form */
        .cta-banner {
            background: linear-gradient(135deg, rgba(255,204,0,0.2), rgba(50,205,50,0.15));
            border: 1px solid rgba(255, 204, 0, 0.5);
            border-radius: var(--radius-lg);
            padding: 3.5rem 2.5rem;
            display: flex;
            align-items: center;
            gap: 3rem;
            flex-wrap: wrap;
        }
        .cta-text { flex: 1 1 300px; }
        .cta-text h2 { font-size: 2rem; margin-bottom: 1rem; }
        .cta-text p { color: var(--clr-text-muted); }
        .cta-form { flex: 1 1 320px; display: flex; gap: 0.8rem; flex-wrap: wrap; }
        .cta-form input[type="text"], .cta-form input[type="tel"] {
            flex: 1 1 160px;
            padding: 0.85rem 1.2rem;
            border-radius: 40px;
            border: 1px solid rgba(255, 204, 0, 0.4);
            background: rgba(255, 255, 255, 0.06);
            color: var(--clr-text);
            outline: none;
            transition: border-color 0.3s, background 0.3s;
        }
        .cta-form input::placeholder { color: rgba(255,255,255,0.5); }
        .cta-form input:focus {
            border-color: var(--clr-accent);
            background: rgba(255, 255, 255, 0.1);
        }
        .form-note { font-size: 0.8rem; color: var(--clr-text-muted); margin-top: 0.5rem; }

        /* FAB */
        .fab-left {
            position: fixed;
            left: 1.5rem;
            bottom: 6rem;
            z-index: 900;
            width: 58px;
            height: 58px;
            border-radius: 50%;
            background: radial-gradient(circle at 30% 30%, #FFE566, #FFCC00);
            border: 3px solid #FFD700;
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.4);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: #062315;
            opacity: 0.7;
            transition: all 0.3s ease;
            animation: fab-breathe 3s infinite ease-in-out;
        }
        .fab-left:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 8px 30px rgba(255, 215, 0, 0.7);
        }
        .fab-left:active {
            transform: scale(0.95) translateY(2px);
        }
        .fab-left::after {
            content: '';
            position: absolute;
            top: -3px;
            right: -3px;
            width: 16px;
            height: 16px;
            background: #D32F2F;
            border-radius: 50%;
            border: 2px solid #FFFDF0;
            animation: blink 1.8s infinite;
        }
        @keyframes fab-breathe {
            0%, 100% { opacity: 0.7; }
            50% { opacity: 1; }
        }
        @keyframes blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }

        /* Footer */
        .site-footer {
            background: #041710;
            border-top: 1px solid rgba(255, 204, 0, 0.2);
            padding: 3rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2.5rem;
            margin-bottom: 2rem;
        }
        .footer-brand h3 {
            font-size: 1.1rem;
            line-height: 1.4;
            color: var(--clr-accent);
            margin-bottom: 1rem;
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: var(--clr-text-muted);
        }
        .footer-links h4 {
            font-size: 1rem;
            color: var(--clr-text);
            margin-bottom: 1rem;
            font-weight: 600;
        }
        .footer-links ul { list-style: none; }
        .footer-links li { margin-bottom: 0.5rem; }
        .footer-links a {
            font-size: 0.9rem;
            color: var(--clr-text-muted);
            transition: color 0.2s;
        }
        .footer-links a:hover { color: var(--clr-accent); }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 1rem;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.85rem;
            color: var(--clr-text-muted);
        }
        .legal-links { display: flex; gap: 1.5rem; flex-wrap: wrap; }

        /* Responsive */
        @media (max-width: 1024px) {
            .metrics-grid { grid-template-columns: repeat(2, 1fr); }
            .service-grid { grid-template-columns: repeat(2, 1fr); }
            .hero-bento { grid-template-columns: 1fr; }
            .bento-main { grid-row: auto; padding: 2.5rem 2rem; }
            .bento-title { font-size: 2.2rem; }
        }
        @media (max-width: 768px) {
            body { padding-top: 76px; }
            .header-inner { height: 76px; gap: 1rem; }
            .nav-menu {
                position: fixed;
                top: 76px;
                left: 0;
                right: 0;
                background: rgba(6, 35, 21, 0.98);
                flex-direction: column;
                align-items: stretch;
                gap: 0.2rem;
                padding: 1rem 1.5rem;
                border-bottom: 1px solid rgba(255, 204, 0, 0.3);
                display: none;
                z-index: 999;
            }
            .nav-menu.open { display: flex; }
            .nav-menu a { padding: 0.8rem 1rem; font-size: 1rem; }
            .mobile-toggle { display: block; }
            .header-actions .btn-ghost { display: none; } /* hide login on tiny? spec says both must display, so keep both visible but smaller */
            .header-actions .btn-outline { padding: 0.4rem 0.9rem; font-size: 0.85rem; }
            .header-actions .btn-primary { padding: 0.4rem 0.9rem; font-size: 0.85rem; }
            .section-head { flex-direction: column; align-items: flex-start; }
            .section-title { font-size: 1.8rem; }
            .metrics-grid { grid-template-columns: 1fr; }
            .service-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
            .footer-bottom { flex-direction: column; align-items: flex-start; }
            .bento-main { padding: 2rem 1.5rem; }
            .bento-title { font-size: 1.9rem; }
            .cta-banner { padding: 2.5rem 1.5rem; gap: 2rem; }
            .fab-left { width: 50px; height: 50px; font-size: 1.2rem; bottom: 5rem; left: 1rem; }
        }
        @media (max-width: 520px) {
            .container { padding-inline: 1rem; }
            .bento-sub { padding: 1.5rem; }
            .header-actions .btn-outline { font-size: 0.8rem; padding: 0.35rem 0.7rem; }
            .header-actions .btn-primary { font-size: 0.8rem; padding: 0.35rem 0.7rem; }
            .btn { padding: 0.5rem 1rem; }
            .metric-value { font-size: 2rem; }
            .logo { font-size: 1.1rem; }
        }

/* roulang page: category3 */
/* ===== Design Variables ===== */
        :root {
            --color-primary: #0A2E1C;
            --color-primary-dark: #06301a;
            --color-secondary: #123E25;
            --color-accent-gold: #FFD700;
            --color-accent-red: #D32F2F;
            --color-text-white: #FFFFFF;
            --color-text-mint: #D1F2EB;
            --color-bg-dark: #0B1A30;
            --color-bg-card: rgba(10, 46, 28, 0.85);
            --color-border-gold: rgba(255, 215, 0, 0.35);
            --color-border-soft: rgba(255, 215, 0, 0.18);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --shadow-soft: 0 6px 24px rgba(0, 0, 0, 0.25);
            --shadow-hover: 0 12px 36px rgba(0, 0, 0, 0.4);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.25);
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 1.75rem;
            --spacing-lg: 3rem;
            --spacing-xl: 4.5rem;
            --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-bounce: 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
            --font-body: 'Segoe UI', 'Inter', -apple-system, BlinkMacSystemFont, 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            --font-heading: 'Segoe UI', 'Inter', -apple-system, BlinkMacSystemFont, 'Roboto', 'Helvetica Neue', Arial, sans-serif;
        }

        /* ===== Base Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-body);
            background: linear-gradient(180deg, #0A2E1C 0%, #123E25 35%, #0B1A30 100%);
            color: var(--color-text-white);
            line-height: 1.6;
            font-size: 16px;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
        }

        button {
            cursor: pointer;
            background: none;
        }

        ul,
        ol {
            list-style: none;
        }

        /* ===== Container ===== */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 60;
            background: rgba(10, 46, 28, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border-soft);
            transition: background var(--transition-base), box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            background: rgba(8, 38, 23, 0.97);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 72px;
            gap: 1rem;
            position: relative;
        }

        .logo {
            font-family: var(--font-heading);
            font-weight: 800;
            font-size: 1.05rem;
            letter-spacing: -0.02em;
            color: var(--color-accent-gold);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-shrink: 0;
            max-width: 220px;
            line-height: 1.25;
            transition: color var(--transition-base);
        }

        .logo:hover {
            color: #FFE55C;
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, #FFD700, #D4AC0D);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: #0A2E1C;
            flex-shrink: 0;
            box-shadow: 0 2px 10px rgba(255, 215, 0, 0.3);
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            margin-left: auto;
            flex-wrap: nowrap;
        }

        .nav-menu a {
            display: inline-block;
            padding: 0.5rem 0.9rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-mint);
            border-radius: 6px;
            white-space: nowrap;
            transition: color var(--transition-base), background var(--transition-base);
            position: relative;
        }

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

        .nav-menu a.active {
            color: var(--color-accent-gold);
            font-weight: 700;
            background: rgba(255, 215, 0, 0.12);
            border-bottom: 2px solid var(--color-accent-gold);
            border-radius: 6px 6px 0 0;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            flex-shrink: 0;
        }

        .btn-login-header {
            padding: 0.5rem 1rem;
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--color-text-mint);
            background: transparent;
            border-radius: 6px;
            transition: color var(--transition-base), background var(--transition-base);
            white-space: nowrap;
        }

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

        .btn-signup-header {
            padding: 0.5rem 1.15rem;
            font-size: 0.88rem;
            font-weight: 700;
            color: #0A2E1C;
            background: linear-gradient(135deg, #FFD700, #FFC400);
            border-radius: 6px;
            box-shadow: 0 2px 14px rgba(255, 215, 0, 0.3);
            white-space: nowrap;
            transition: transform var(--transition-base), box-shadow var(--transition-base), background var(--transition-base);
        }

        .btn-signup-header:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 22px rgba(255, 215, 0, 0.4);
            background: linear-gradient(135deg, #FFE55C, #FFD700);
        }

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            background: rgba(255, 215, 0, 0.1);
            border: 1px solid var(--color-border-gold);
            border-radius: 8px;
            align-items: center;
            justify-content: center;
            color: var(--color-accent-gold);
            font-size: 1.2rem;
            transition: background var(--transition-base);
            flex-shrink: 0;
        }

        .nav-toggle:hover {
            background: rgba(255, 215, 0, 0.2);
        }

        /* ===== Hero ===== */
        .hero-km {
            position: relative;
            padding-top: 130px;
            padding-bottom: 80px;
            background-image: url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            min-height: 520px;
            display: flex;
            align-items: center;
            text-align: center;
        }

        .hero-km::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 46, 28, 0.82) 0%, rgba(10, 46, 28, 0.55) 55%, rgba(11, 26, 48, 0.85) 100%);
            z-index: 1;
        }

        .hero-km-content {
            position: relative;
            z-index: 2;
            max-width: 820px;
            margin: 0 auto;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255, 215, 0, 0.15);
            border: 1px solid var(--color-border-gold);
            padding: 0.45rem 1.25rem;
            border-radius: 99px;
            font-size: 0.85rem;
            font-weight: 600;
            color: #FFE55C;
            letter-spacing: 0.02em;
            margin-bottom: 1.5rem;
            animation: fadeInUp 0.6s ease-out;
        }

        .hero-km h1 {
            font-family: var(--font-heading);
            font-size: 2.65rem;
            font-weight: 800;
            letter-spacing: -0.025em;
            line-height: 1.18;
            color: var(--color-text-white);
            margin-bottom: 1.1rem;
            animation: fadeInUp 0.7s ease-out 0.08s both;
        }

        .hero-km h1 .gold-text {
            color: var(--color-accent-gold);
            display: block;
            font-size: 0.72em;
            letter-spacing: 0.01em;
        }

        .hero-km-sub {
            font-size: 1.08rem;
            color: var(--color-text-mint);
            line-height: 1.65;
            max-width: 660px;
            margin: 0 auto 1.8rem;
            animation: fadeInUp 0.7s ease-out 0.16s both;
        }

        .hero-km-demo {
            display: inline-flex;
            flex-direction: column;
            align-items: center;
            gap: 0.6rem;
            background: rgba(10, 46, 28, 0.85);
            border: 1px solid var(--color-border-gold);
            border-radius: var(--radius-md);
            padding: 1.2rem 1.8rem;
            margin: 0 auto 1.8rem;
            animation: fadeInUp 0.7s ease-out 0.24s both;
            backdrop-filter: blur(8px);
        }

        .hero-demo-label {
            font-size: 0.78rem;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--color-text-mint);
            opacity: 0.75;
        }

        .hero-demo-stats {
            display: flex;
            gap: 2rem;
            align-items: center;
            flex-wrap: wrap;
            justify-content: center;
        }

        .hero-demo-stat {
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .hero-demo-stat strong {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--color-accent-gold);
        }

        .hero-demo-stat span {
            font-size: 0.8rem;
            color: var(--color-text-mint);
            opacity: 0.85;
        }

        .hero-cta-group {
            display: flex;
            gap: 0.9rem;
            justify-content: center;
            flex-wrap: wrap;
            animation: fadeInUp 0.7s ease-out 0.32s both;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.85rem 1.8rem;
            font-size: 1rem;
            font-weight: 700;
            color: #0A2E1C;
            background: linear-gradient(135deg, #FFD700, #FFC400);
            border-radius: var(--radius-sm);
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.35);
            transition: transform var(--transition-base), box-shadow var(--transition-base), background var(--transition-base);
            border: none;
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 28px rgba(255, 215, 0, 0.5);
            background: linear-gradient(135deg, #FFE55C, #FFD700);
        }

        .btn-primary:active {
            transform: translateY(-1px);
            box-shadow: 0 3px 14px rgba(255, 215, 0, 0.35);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.85rem 1.8rem;
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-accent-gold);
            background: transparent;
            border: 1.5px solid var(--color-border-gold);
            border-radius: var(--radius-sm);
            transition: background var(--transition-base), border-color var(--transition-base), transform var(--transition-base);
        }

        .btn-outline:hover {
            background: rgba(255, 215, 0, 0.1);
            border-color: var(--color-accent-gold);
            transform: translateY(-3px);
        }

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

        .section-alt {
            background: rgba(255, 255, 255, 0.02);
            border-top: 1px solid rgba(255, 215, 0, 0.08);
            border-bottom: 1px solid rgba(255, 215, 0, 0.08);
        }

        .section-header {
            max-width: 720px;
            margin-bottom: var(--spacing-lg);
            text-align: left;
        }

        .section-header.center {
            text-align: center;
            margin-left: auto;
            margin-right: auto;
        }

        .section-kicker {
            display: inline-block;
            font-size: 0.8rem;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            color: var(--color-accent-gold);
            font-weight: 700;
            margin-bottom: 0.6rem;
        }

        .section-header h2 {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.25;
            color: var(--color-text-white);
            margin-bottom: 0.8rem;
        }

        .section-header p {
            font-size: 1rem;
            color: var(--color-text-mint);
            opacity: 0.85;
            line-height: 1.65;
            max-width: 620px;
        }

        .section-header.center p {
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== Metrics Dashboard ===== */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.25rem;
            align-items: stretch;
        }

        .metric-card {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border-soft);
            border-radius: var(--radius-md);
            padding: 1.6rem 1.3rem;
            text-align: left;
            transition: border-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .metric-card::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--color-accent-gold), transparent);
            opacity: 0.7;
        }

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

        .metric-icon {
            width: 44px;
            height: 44px;
            background: rgba(255, 215, 0, 0.12);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            color: var(--color-accent-gold);
            margin-bottom: 0.9rem;
        }

        .metric-value {
            font-size: 1.9rem;
            font-weight: 800;
            color: var(--color-accent-gold);
            letter-spacing: -0.02em;
            line-height: 1.15;
            margin-bottom: 0.3rem;
        }

        .metric-label {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-text-white);
            margin-bottom: 0.25rem;
        }

        .metric-desc {
            font-size: 0.82rem;
            color: var(--color-text-mint);
            opacity: 0.7;
            line-height: 1.5;
        }

        /* ===== Service Matrix ===== */
        .promo-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem;
        }

        .promo-card {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border-soft);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
            display: flex;
            flex-direction: column;
        }

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

        .promo-card-img {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
        }

        .promo-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .promo-card:hover .promo-card-img img {
            transform: scale(1.05);
        }

        .promo-tag {
            position: absolute;
            top: 12px;
            right: 12px;
            background: var(--color-accent-red);
            color: #fff;
            font-size: 0.72rem;
            font-weight: 700;
            padding: 0.3rem 0.7rem;
            border-radius: 99px;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            box-shadow: 0 2px 8px rgba(211, 47, 47, 0.4);
        }

        .promo-card-body {
            padding: 1.5rem 1.5rem 1.6rem;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .promo-card-body h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--color-text-white);
            margin-bottom: 0.6rem;
            letter-spacing: -0.01em;
        }

        .promo-card-body p {
            font-size: 0.92rem;
            color: var(--color-text-mint);
            opacity: 0.8;
            line-height: 1.6;
            margin-bottom: 1rem;
            flex: 1;
        }

        .promo-meta {
            display: flex;
            align-items: center;
            gap: 1rem;
            flex-wrap: wrap;
            padding-top: 0.8rem;
            border-top: 1px solid rgba(255, 215, 0, 0.1);
        }

        .promo-meta span {
            font-size: 0.8rem;
            color: var(--color-text-mint);
            display: flex;
            align-items: center;
            gap: 0.35rem;
        }

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

        /* ===== Results Comparison ===== */
        .comparison-table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-soft);
            background: var(--color-bg-card);
            backdrop-filter: blur(8px);
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 700px;
        }

        .comparison-table th {
            padding: 1.1rem 1.2rem;
            text-align: left;
            font-size: 0.85rem;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--color-accent-gold);
            font-weight: 700;
            border-bottom: 2px solid var(--color-border-gold);
            background: rgba(255, 215, 0, 0.04);
        }

        .comparison-table td {
            padding: 1rem 1.2rem;
            font-size: 0.92rem;
            color: var(--color-text-white);
            border-bottom: 1px solid rgba(255, 215, 0, 0.07);
            vertical-align: middle;
        }

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

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

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

        .comparison-table .check-icon {
            color: #32CD32;
            font-size: 1rem;
        }

        .comparison-table .star-icon {
            color: var(--color-accent-gold);
            font-size: 0.85rem;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 820px;
        }

        .faq-item {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border-soft);
            border-radius: var(--radius-md);
            margin-bottom: 0.9rem;
            overflow: hidden;
            transition: border-color var(--transition-base);
        }

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

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 1.15rem 1.4rem;
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-text-white);
            text-align: left;
            letter-spacing: -0.01em;
            transition: color var(--transition-base);
        }

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

        .faq-question i {
            flex-shrink: 0;
            color: var(--color-accent-gold);
            font-size: 0.9rem;
            transition: transform 0.3s ease;
        }

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

        .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 1.4rem;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 1.4rem 1.25rem;
        }

        .faq-answer p {
            font-size: 0.92rem;
            color: var(--color-text-mint);
            opacity: 0.85;
            line-height: 1.65;
        }

        /* ===== Conversion Form ===== */
        .cta-section {
            background-image: url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            position: relative;
            padding: var(--spacing-xl) 0;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 46, 28, 0.93) 0%, rgba(11, 26, 48, 0.88) 100%);
            z-index: 1;
        }

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

        .cta-panel {
            max-width: 560px;
            margin: 0 auto;
            background: rgba(10, 46, 28, 0.9);
            border: 1px solid var(--color-border-gold);
            border-radius: var(--radius-lg);
            padding: 2.5rem 2.2rem;
            backdrop-filter: blur(16px);
            box-shadow: var(--shadow-soft);
            text-align: center;
        }

        .cta-panel h2 {
            font-size: 1.75rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--color-text-white);
            margin-bottom: 0.8rem;
        }

        .cta-panel p {
            font-size: 0.95rem;
            color: var(--color-text-mint);
            opacity: 0.85;
            line-height: 1.6;
            margin-bottom: 1.6rem;
        }

        .cta-form {
            display: flex;
            flex-direction: column;
            gap: 0.85rem;
            text-align: left;
        }

        .form-group {
            display: flex;
            flex-direction: column;
            gap: 0.4rem;
        }

        .form-group label {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-text-mint);
        }

        .form-group input,
        .form-group select {
            padding: 0.8rem 1rem;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 215, 0, 0.2);
            border-radius: var(--radius-sm);
            color: var(--color-text-white);
            transition: border-color var(--transition-base), background var(--transition-base);
            font-size: 0.95rem;
            width: 100%;
        }

        .form-group input::placeholder {
            color: rgba(209, 242, 235, 0.5);
        }

        .form-group input:focus,
        .form-group select:focus {
            border-color: var(--color-accent-gold);
            background: rgba(255, 255, 255, 0.09);
            outline: none;
            box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.12);
        }

        .form-group select option {
            background: #0A2E1C;
            color: #fff;
        }

        .btn-submit-form {
            padding: 0.9rem 1.5rem;
            font-size: 1rem;
            font-weight: 700;
            color: #0A2E1C;
            background: linear-gradient(135deg, #FFD700, #FFC400);
            border-radius: var(--radius-sm);
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.35);
            transition: transform var(--transition-base), box-shadow var(--transition-base);
            border: none;
            width: 100%;
            letter-spacing: 0.01em;
        }

        .btn-submit-form:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255, 215, 0, 0.5);
        }

        .form-disclaimer {
            font-size: 0.78rem;
            color: var(--color-text-mint);
            opacity: 0.6;
            text-align: center;
            margin-top: 0.8rem;
            line-height: 1.5;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: rgba(6, 40, 24, 0.95);
            border-top: 1px solid var(--color-border-soft);
            padding: var(--spacing-lg) 0 1.8rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2.5rem;
            margin-bottom: 2rem;
        }

        .footer-brand h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-accent-gold);
            margin-bottom: 0.8rem;
            line-height: 1.4;
        }

        .footer-brand p {
            font-size: 0.87rem;
            color: var(--color-text-mint);
            opacity: 0.75;
            line-height: 1.6;
            max-width: 340px;
        }

        .footer-links h4 {
            font-size: 0.92rem;
            font-weight: 700;
            color: var(--color-text-white);
            margin-bottom: 0.8rem;
            letter-spacing: 0.02em;
        }

        .footer-links ul {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

        .footer-links ul a {
            font-size: 0.87rem;
            color: var(--color-text-mint);
            opacity: 0.75;
            transition: color var(--transition-base), opacity var(--transition-base), padding-left var(--transition-base);
        }

        .footer-links ul a:hover {
            color: var(--color-accent-gold);
            opacity: 1;
            padding-left: 4px;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.8rem;
            padding-top: 1.4rem;
            border-top: 1px solid rgba(255, 215, 0, 0.1);
        }

        .footer-bottom span {
            font-size: 0.8rem;
            color: var(--color-text-mint);
            opacity: 0.6;
        }

        .legal-links {
            display: flex;
            gap: 1.2rem;
            flex-wrap: wrap;
        }

        .legal-links a {
            font-size: 0.8rem;
            color: var(--color-text-mint);
            opacity: 0.6;
            transition: color var(--transition-base), opacity var(--transition-base);
        }

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

        /* ===== FAB ===== */
        .fab-royal {
            position: fixed;
            left: 1rem;
            bottom: 6rem;
            z-index: 50;
            width: 56px;
            height: 56px;
            background: radial-gradient(circle at 30% 25%, #1C1C1E, #0A0A0B);
            border: 3px solid var(--color-accent-gold);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.35rem;
            color: var(--color-accent-gold);
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.35), inset 0 2px 6px rgba(255, 215, 0, 0.12);
            cursor: pointer;
            opacity: 0.75;
            animation: fabBreathe 3s ease-in-out infinite;
            transition: opacity var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
            -webkit-tap-highlight-color: transparent;
            touch-action: manipulation;
        }

        .fab-royal:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 6px 28px rgba(255, 215, 0, 0.5), inset 0 2px 6px rgba(255, 215, 0, 0.15);
        }

        .fab-royal:active {
            transform: scale(0.95);
            box-shadow: 0 2px 12px rgba(255, 215, 0, 0.3);
        }

        .fab-notification-dot {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            background: #D32F2F;
            border-radius: 50%;
            border: 2px solid #0A2E1C;
            animation: fabDotBlink 2s ease-in-out infinite;
        }

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

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

        /* ===== Animations ===== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(28px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @keyframes pulseGold {
            0%, 100% { box-shadow: 0 0 0 0 rgba(255, 215, 0, 0.35); }
            50% { box-shadow: 0 0 0 10px rgba(255, 215, 0, 0); }
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1rem;
            }

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

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

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

        @media (max-width: 768px) {
            .container {
                padding: 0 1rem;
            }

            .header-inner {
                min-height: 62px;
            }

            .logo {
                font-size: 0.88rem;
                max-width: 160px;
            }

            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
            }

            .nav-toggle {
                display: flex;
                order: 3;
            }

            .nav-menu {
                position: fixed;
                top: 62px;
                left: 0;
                right: 0;
                background: rgba(10, 46, 28, 0.98);
                backdrop-filter: blur(16px);
                flex-direction: column;
                align-items: stretch;
                padding: 0.8rem 1rem 1.2rem;
                gap: 0.3rem;
                border-bottom: 1px solid var(--color-border-gold);
                box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
                transform: translateY(-120%);
                transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
                z-index: 55;
            }

            .nav-menu.open {
                transform: translateY(0);
            }

            .nav-menu a {
                padding: 0.75rem 1rem;
                font-size: 0.95rem;
                width: 100%;
                border-radius: 8px;
            }

            .nav-menu a.active {
                border-bottom: none;
                background: rgba(255, 215, 0, 0.12);
                border-radius: 8px;
            }

            .header-actions {
                order: 2;
                gap: 0.4rem;
            }

            .btn-login-header {
                padding: 0.45rem 0.7rem;
                font-size: 0.8rem;
            }

            .btn-signup-header {
                padding: 0.45rem 0.8rem;
                font-size: 0.8rem;
            }

            .hero-km {
                padding-top: 105px;
                padding-bottom: 55px;
                min-height: 420px;
            }

            .hero-km h1 {
                font-size: 1.75rem;
            }

            .hero-km h1 .gold-text {
                font-size: 0.8em;
            }

            .hero-km-sub {
                font-size: 0.95rem;
            }

            .hero-demo-stats {
                gap: 1.2rem;
            }

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

            .section {
                padding: 2.8rem 0;
            }

            .section-header h2 {
                font-size: 1.55rem;
            }

            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 0.8rem;
            }

            .metric-card {
                padding: 1.2rem 1rem;
            }

            .metric-value {
                font-size: 1.45rem;
            }

            .promo-grid {
                grid-template-columns: 1fr;
                gap: 1rem;
            }

            .cta-panel {
                padding: 1.8rem 1.3rem;
            }

            .cta-panel h2 {
                font-size: 1.4rem;
            }

            .fab-royal {
                width: 48px;
                height: 48px;
                font-size: 1.15rem;
                left: 0.8rem;
                bottom: 5.2rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.8rem;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.7rem;
            }
        }

        @media (max-width: 520px) {
            .hero-km h1 {
                font-size: 1.45rem;
            }

            .hero-km-sub {
                font-size: 0.88rem;
            }

            .hero-cta-group {
                flex-direction: column;
                align-items: center;
            }

            .btn-primary,
            .btn-outline {
                width: 100%;
                max-width: 280px;
                justify-content: center;
            }

            .metrics-grid {
                grid-template-columns: 1fr;
                gap: 0.7rem;
            }

            .metric-card {
                padding: 1rem 0.9rem;
            }

            .section-header h2 {
                font-size: 1.35rem;
            }

            .header-actions .btn-login-header {
                padding: 0.4rem 0.55rem;
                font-size: 0.75rem;
            }

            .header-actions .btn-signup-header {
                padding: 0.4rem 0.6rem;
                font-size: 0.75rem;
            }

            .hero-km-demo {
                padding: 0.9rem 1rem;
            }
        }

        /* ===== Focus Accessibility ===== */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--color-accent-gold);
            outline-offset: 2px;
        }

        /* ===== Hidden Utility ===== */
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }