/* roulang page: index */
:root {
            --bg-primary: #0A2E1C;
            --bg-secondary: #123E25;
            --bg-tertiary: #0D3823;
            --bg-dark: #072113;
            --accent-gold: #FFD700;
            --accent-gold-light: #FFDF40;
            --accent-gold-dark: #C5A000;
            --accent-red: #D32F2F;
            --accent-red-dark: #B71C1C;
            --text-white: #FFFFFF;
            --text-pale: #D1F2EB;
            --text-muted: #9BC4B4;
            --border-gold: rgba(255, 215, 0, 0.45);
            --border-gold-light: rgba(255, 215, 0, 0.25);
            --card-bg: rgba(18, 62, 37, 0.85);
            --card-bg-hover: rgba(18, 62, 37, 0.95);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.35);
            --shadow-lg: 0 12px 48px rgba(0, 0, 0, 0.5);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.3);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --radius-full: 9999px;
            --font-base: 'Be Vietnam Pro', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --font-heading: 'Be Vietnam Pro', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
            --container-max: 1240px;
            --container-padding: 24px;
            --header-height: 76px;
            --z-header: 100;
            --z-fab: 90;
            --z-mobile-menu: 110;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-base);
            line-height: 1.6;
            background-color: var(--bg-primary);
            color: var(--text-white);
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-tap-highlight-color: transparent;
        }

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

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

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

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

        button {
            cursor: pointer;
        }

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

        ul,
        ol {
            list-style: none;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: var(--container-padding);
            padding-right: var(--container-padding);
            width: 100%;
        }

        /* ========== HEADER ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: var(--z-header);
            background: rgba(7, 33, 19, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-gold-light);
            height: var(--header-height);
            transition: box-shadow var(--transition-base), background var(--transition-base);
        }

        .site-header.scrolled {
            background: rgba(7, 33, 19, 0.98);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            height: var(--header-height);
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            color: var(--text-white);
            font-weight: 700;
            font-size: 1.05rem;
            line-height: 1.3;
            max-width: 340px;
            flex-shrink: 0;
            transition: opacity var(--transition-fast);
        }

        .logo-link:hover {
            opacity: 0.88;
            color: var(--text-white);
        }

        .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-dark));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.35rem;
            flex-shrink: 0;
            box-shadow: var(--shadow-gold);
        }

        .logo-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }

        .logo-text strong {
            font-weight: 800;
            font-size: 0.95rem;
            letter-spacing: -0.01em;
            color: var(--accent-gold);
        }

        .logo-text span {
            font-size: 0.68rem;
            color: var(--text-pale);
            font-weight: 400;
            letter-spacing: 0.02em;
        }

        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            justify-content: center;
        }

        .nav-link {
            padding: 8px 16px;
            border-radius: var(--radius-full);
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-pale);
            text-decoration: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }

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

        .nav-link.active {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.12);
            font-weight: 600;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 0.88rem;
            line-height: 1.4;
            transition: all var(--transition-fast);
            text-decoration: none;
            white-space: nowrap;
            letter-spacing: 0.01em;
        }

        .btn-login {
            color: var(--text-pale);
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 10px 18px;
        }

        .btn-login:hover {
            color: var(--text-white);
            border-color: rgba(255, 255, 255, 0.4);
            background: rgba(255, 255, 255, 0.06);
        }

        .btn-signup {
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-dark));
            color: var(--bg-dark);
            box-shadow: 0 4px 16px rgba(255, 215, 0, 0.3);
            border: 1px solid rgba(255, 215, 0, 0.5);
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255, 215, 0, 0.45);
            color: var(--bg-dark);
        }

        .btn-signup:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(255, 215, 0, 0.3);
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-dark));
            color: var(--bg-dark);
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.35);
            border: 1px solid rgba(255, 215, 0, 0.5);
            font-size: 0.95rem;
            padding: 14px 28px;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(255, 215, 0, 0.5);
            color: var(--bg-dark);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 10px rgba(255, 215, 0, 0.3);
        }

        .btn-secondary {
            background: rgba(255, 255, 255, 0.08);
            color: var(--text-white);
            border: 1px solid rgba(255, 255, 255, 0.25);
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
            font-size: 0.95rem;
            padding: 14px 28px;
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.14);
            border-color: rgba(255, 255, 255, 0.4);
            transform: translateY(-2px);
            color: var(--text-white);
        }

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

        .mobile-menu-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.15);
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 4px;
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }

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

        .mobile-menu-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text-white);
            border-radius: 2px;
            transition: all var(--transition-base);
        }

        .mobile-menu-toggle.open span:nth-child(1) {
            transform: translateY(6px) rotate(45deg);
        }

        .mobile-menu-toggle.open span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }

        .mobile-menu-toggle.open span:nth-child(3) {
            transform: translateY(-6px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            background: rgba(7, 33, 19, 0.98);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-gold-light);
            padding: 16px 24px 24px;
            z-index: var(--z-mobile-menu);
            flex-direction: column;
            gap: 8px;
            transform: translateY(-8px);
            opacity: 0;
            pointer-events: none;
            transition: all var(--transition-base);
        }

        .mobile-menu.open {
            transform: translateY(0);
            opacity: 1;
            pointer-events: auto;
        }

        .mobile-menu .nav-link {
            padding: 12px 16px;
            font-size: 0.95rem;
        }

        .mobile-menu-cta {
            display: flex;
            gap: 10px;
            margin-top: 12px;
            padding-top: 16px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }

        /* ========== HERO ========== */
        .hero {
            min-height: 88vh;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
            padding-top: calc(var(--header-height) + 30px);
            padding-bottom: 60px;
            background-image: url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            isolation: isolate;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(7, 33, 19, 0.82) 0%, rgba(7, 33, 19, 0.68) 40%, rgba(7, 33, 19, 0.92) 75%, var(--bg-primary) 100%);
            z-index: -1;
        }

        .hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 70% 40%, rgba(255, 215, 0, 0.12) 0%, transparent 55%);
            z-index: -1;
        }

        .hero-inner {
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 50px;
            align-items: center;
            width: 100%;
        }

        .hero-content {
            display: flex;
            flex-direction: column;
            gap: 22px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 215, 0, 0.15);
            border: 1px solid rgba(255, 215, 0, 0.4);
            border-radius: var(--radius-full);
            padding: 6px 16px;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--accent-gold);
            letter-spacing: 0.03em;
            width: fit-content;
            text-transform: uppercase;
        }

        .hero-badge .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent-red);
            animation: pulse-dot 1.8s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.4); }
        }

        .hero-title {
            font-size: clamp(1.9rem, 4.5vw, 3.4rem);
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            color: var(--text-white);
        }

        .hero-title .highlight {
            color: var(--accent-gold);
            display: inline;
        }

        .hero-desc {
            font-size: 1.04rem;
            line-height: 1.7;
            color: var(--text-pale);
            max-width: 560px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-top: 6px;
        }

        .hero-stats {
            display: flex;
            gap: 30px;
            margin-top: 22px;
            flex-wrap: wrap;
        }

        .hero-stat {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .hero-stat strong {
            font-size: 1.55rem;
            font-weight: 800;
            color: var(--accent-gold);
            letter-spacing: -0.01em;
        }

        .hero-stat span {
            font-size: 0.8rem;
            color: var(--text-muted);
            font-weight: 400;
        }

        .hero-visual {
            position: relative;
            display: flex;
            justify-content: center;
            align-items: center;
            min-height: 380px;
        }

        .hero-poster {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg), 0 0 60px rgba(255, 215, 0, 0.15);
            border: 2px solid rgba(255, 215, 0, 0.35);
            max-width: 390px;
            width: 100%;
            transform: rotate(-2deg);
            transition: transform var(--transition-slow);
        }

        .hero-poster:hover {
            transform: rotate(0deg) scale(1.02);
        }

        .hero-poster img {
            width: 100%;
            aspect-ratio: 4/5;
            object-fit: cover;
        }

        .hero-poster .poster-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 40px 20px 18px;
            background: linear-gradient(180deg, transparent 0%, rgba(7, 33, 19, 0.88) 65%);
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .poster-overlay strong {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-white);
        }

        .poster-overlay span {
            font-size: 0.8rem;
            color: var(--text-pale);
        }

        .hero-hot-badge {
            position: absolute;
            top: -14px;
            right: -10px;
            background: linear-gradient(135deg, var(--accent-red), var(--accent-red-dark));
            color: #fff;
            padding: 8px 18px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 0.78rem;
            letter-spacing: 0.04em;
            box-shadow: 0 4px 20px rgba(211, 47, 47, 0.5);
            border: 1px solid rgba(255, 255, 255, 0.3);
            text-transform: uppercase;
            animation: hot-float 3s ease-in-out infinite;
        }

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

        .hero-floating-chip {
            position: absolute;
            bottom: 20px;
            left: -10px;
            background: var(--card-bg);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            padding: 12px 18px;
            display: flex;
            align-items: center;
            gap: 10px;
            box-shadow: var(--shadow-md);
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--text-pale);
        }

        .hero-floating-chip .icon {
            width: 32px;
            height: 32px;
            border-radius: var(--radius-sm);
            background: rgba(255, 215, 0, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
        }

        /* ========== SECTIONS ========== */
        .section {
            padding-top: 72px;
            padding-bottom: 72px;
            position: relative;
        }

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

        .section-header {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-bottom: 36px;
            max-width: 650px;
        }

        .section-header.left-aligned {
            text-align: left;
            align-items: flex-start;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.74rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.1);
            border: 1px solid rgba(255, 215, 0, 0.25);
            padding: 5px 14px;
            border-radius: var(--radius-full);
            width: fit-content;
        }

        .section-title {
            font-size: clamp(1.5rem, 2.8vw, 2.2rem);
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.015em;
            color: var(--text-white);
        }

        .section-desc {
            font-size: 0.96rem;
            line-height: 1.7;
            color: var(--text-muted);
            max-width: 580px;
        }

        /* ========== CATEGORY DIRECTORY ========== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 22px;
        }

        .category-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-gold-light);
            background: var(--card-bg);
            transition: all var(--transition-base);
            text-decoration: none;
            display: flex;
            flex-direction: column;
            min-height: 240px;
        }

        .category-card::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 30%, rgba(7, 33, 19, 0.9) 100%);
            z-index: 1;
            transition: all var(--transition-base);
        }

        .category-card img {
            width: 100%;
            height: 100%;
            position: absolute;
            inset: 0;
            object-fit: cover;
            transition: transform var(--transition-slow);
            z-index: 0;
        }

        .category-card:hover img {
            transform: scale(1.06);
        }

        .category-card:hover {
            border-color: var(--border-gold);
            box-shadow: var(--shadow-md), 0 0 30px rgba(255, 215, 0, 0.12);
            transform: translateY(-3px);
        }

        .category-card-content {
            position: relative;
            z-index: 2;
            margin-top: auto;
            padding: 26px 22px 20px;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .category-card-content strong {
            font-size: 1.12rem;
            font-weight: 700;
            color: var(--text-white);
            line-height: 1.3;
        }

        .category-card-content span {
            font-size: 0.84rem;
            color: var(--text-pale);
            line-height: 1.55;
            opacity: 0.9;
        }

        .category-card-content .card-arrow {
            color: var(--accent-gold);
            font-weight: 600;
            font-size: 0.86rem;
            margin-top: 4px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        /* ========== VALUE PROPS ========== */
        .value-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 22px;
        }

        .value-item {
            display: flex;
            flex-direction: column;
            gap: 12px;
            padding: 24px 22px;
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all var(--transition-base);
        }

        .value-item:hover {
            background: rgba(255, 255, 255, 0.07);
            border-color: rgba(255, 215, 0, 0.25);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }

        .value-icon {
            width: 46px;
            height: 46px;
            border-radius: var(--radius-md);
            background: rgba(255, 215, 0, 0.12);
            border: 1px solid rgba(255, 215, 0, 0.25);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
        }

        .value-item h3 {
            font-size: 1.02rem;
            font-weight: 700;
            color: var(--text-white);
            line-height: 1.35;
        }

        .value-item p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.65;
        }

        /* ========== TIMED PROMO ========== */
        .promo-banner {
            border-radius: var(--radius-lg);
            background: linear-gradient(135deg, rgba(211, 47, 47, 0.18) 0%, rgba(18, 62, 37, 0.85) 60%);
            border: 1px solid rgba(255, 215, 0, 0.35);
            overflow: hidden;
            position: relative;
            isolation: isolate;
            padding: 36px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 30px;
            flex-wrap: wrap;
        }

        .promo-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.3;
            z-index: -1;
        }

        .promo-left {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .promo-left h3 {
            font-size: 1.45rem;
            font-weight: 800;
            color: var(--accent-gold);
            letter-spacing: -0.01em;
        }

        .promo-left p {
            font-size: 0.92rem;
            color: var(--text-pale);
            max-width: 400px;
        }

        .promo-timer {
            display: flex;
            gap: 12px;
            align-items: center;
            flex-wrap: wrap;
        }

        .timer-block {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 2px;
            background: rgba(0, 0, 0, 0.4);
            border-radius: var(--radius-md);
            padding: 10px 16px;
            min-width: 60px;
            border: 1px solid rgba(255, 215, 0, 0.3);
        }

        .timer-block strong {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--accent-gold);
            line-height: 1;
        }

        .timer-block span {
            font-size: 0.7rem;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 0.04em;
        }

        /* ========== PROMO TIERS ========== */
        .tier-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(235px, 1fr));
            gap: 18px;
        }

        .tier-card {
            position: relative;
            border-radius: var(--radius-md);
            background: var(--card-bg);
            border: 1px solid rgba(255, 255, 255, 0.1);
            padding: 28px 22px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            transition: all var(--transition-base);
        }

        .tier-card:hover {
            border-color: var(--border-gold);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .tier-card.featured {
            border-color: var(--accent-gold);
            background: linear-gradient(160deg, rgba(255, 215, 0, 0.12), var(--card-bg) 55%);
            box-shadow: var(--shadow-gold);
        }

        .tier-badge {
            position: absolute;
            top: -10px;
            right: 18px;
            background: var(--accent-red);
            color: #fff;
            font-size: 0.68rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: var(--radius-full);
            text-transform: uppercase;
            letter-spacing: 0.04em;
        }

        .tier-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-white);
        }

        .tier-amount {
            font-size: 1.65rem;
            font-weight: 800;
            color: var(--accent-gold);
            letter-spacing: -0.01em;
        }

        .tier-card ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .tier-card ul li {
            font-size: 0.86rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 8px;
            line-height: 1.5;
        }

        .tier-card ul li::before {
            content: '✦';
            color: var(--accent-gold);
            font-size: 0.7rem;
        }

        .tier-cta {
            margin-top: 6px;
        }

        /* ========== VERTICAL FEED ========== */
        .feed-scroll {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
            gap: 18px;
        }

        .feed-card {
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--card-bg);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all var(--transition-base);
            cursor: pointer;
            text-decoration: none;
            display: flex;
            flex-direction: column;
        }

        .feed-card:hover {
            border-color: var(--border-gold);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .feed-card-image {
            position: relative;
            overflow: hidden;
            aspect-ratio: 3/4;
        }

        .feed-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

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

        .feed-card-body {
            padding: 16px 16px 18px;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .feed-card-body strong {
            font-size: 0.92rem;
            font-weight: 700;
            color: var(--text-white);
            line-height: 1.4;
        }

        .feed-card-body span {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        .feed-cta {
            font-size: 0.78rem;
            font-weight: 700;
            color: var(--accent-gold);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            margin-top: 4px;
        }

        /* ========== CMS / NEWS ========== */
        .news-layout {
            display: grid;
            grid-template-columns: 1.5fr 0.8fr;
            gap: 36px;
            align-items: start;
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .news-item {
            display: flex;
            align-items: flex-start;
            gap: 18px;
            padding: 18px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.07);
            transition: all var(--transition-fast);
            text-decoration: none;
            border-radius: var(--radius-sm);
        }

        .news-item:hover {
            background: rgba(255, 255, 255, 0.03);
            padding-left: 10px;
        }

        .news-item-meta {
            display: flex;
            align-items: flex-start;
            flex-direction: column;
            gap: 4px;
            min-width: 60px;
        }

        .news-item-date {
            font-size: 0.72rem;
            color: var(--text-muted);
            white-space: nowrap;
            font-weight: 500;
        }

        .news-item-cat {
            font-size: 0.68rem;
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
            padding: 2px 8px;
            border-radius: var(--radius-full);
            white-space: nowrap;
            font-weight: 600;
        }

        .news-item-content {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .news-item-content strong {
            font-size: 0.98rem;
            font-weight: 700;
            color: var(--text-white);
            line-height: 1.4;
            transition: color var(--transition-fast);
        }

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

        .news-item-content p {
            font-size: 0.84rem;
            color: var(--text-muted);
            line-height: 1.55;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-panel {
            border-radius: var(--radius-lg);
            background: var(--card-bg);
            border: 1px solid var(--border-gold-light);
            padding: 24px 22px;
            display: flex;
            flex-direction: column;
            gap: 14px;
            position: sticky;
            top: calc(var(--header-height) + 20px);
        }

        .news-panel h4 {
            font-size: 0.98rem;
            font-weight: 700;
            color: var(--accent-gold);
            letter-spacing: -0.01em;
        }

        .news-panel-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .news-panel-item {
            display: flex;
            flex-direction: column;
            gap: 2px;
            padding: 10px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            text-decoration: none;
        }

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

        .news-panel-item strong {
            font-size: 0.86rem;
            font-weight: 600;
            color: var(--text-pale);
            line-height: 1.4;
            transition: color var(--transition-fast);
        }

        .news-panel-item:hover strong {
            color: var(--accent-gold);
        }

        .news-panel-item span {
            font-size: 0.74rem;
            color: var(--text-muted);
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 760px;
        }

        .faq-item {
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .faq-item:hover {
            border-color: rgba(255, 215, 0, 0.25);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 22px;
            cursor: pointer;
            text-align: left;
            width: 100%;
            font-size: 0.96rem;
            font-weight: 600;
            color: var(--text-white);
            line-height: 1.45;
            transition: color var(--transition-fast);
        }

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

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(255, 215, 0, 0.12);
            border: 1px solid rgba(255, 215, 0, 0.25);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            color: var(--accent-gold);
            flex-shrink: 0;
            transition: transform var(--transition-fast);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow);
        }

        .faq-answer-inner {
            padding: 0 22px 20px;
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: var(--accent-gold);
            color: var(--bg-dark);
            border-color: var(--accent-gold);
        }

        /* ========== CTA ========== */
        .cta-section {
            border-radius: var(--radius-xl);
            background: linear-gradient(135deg, rgba(255, 215, 0, 0.1) 0%, rgba(18, 62, 37, 0.9) 50%, rgba(7, 33, 19, 0.95) 100%);
            border: 1px solid rgba(255, 215, 0, 0.35);
            padding: 56px 40px;
            position: relative;
            overflow: hidden;
            text-align: center;
            isolation: isolate;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.25;
            z-index: -1;
        }

        .cta-section h2 {
            font-size: clamp(1.6rem, 3vw, 2.3rem);
            font-weight: 800;
            letter-spacing: -0.015em;
            color: var(--text-white);
            margin-bottom: 10px;
        }

        .cta-section p {
            font-size: 0.98rem;
            color: var(--text-pale);
            max-width: 520px;
            margin: 0 auto 24px;
            line-height: 1.7;
        }

        .cta-actions {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-dark);
            border-top: 1px solid var(--border-gold-light);
            padding-top: 56px;
            padding-bottom: 0;
            margin-top: 0;
        }

        .footer-inner {
            display: grid;
            grid-template-columns: 1.3fr 0.8fr 0.8fr;
            gap: 40px;
            padding-bottom: 40px;
        }

        .footer-brand {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .footer-brand .logo-link {
            font-size: 0.95rem;
        }

        .footer-brand p {
            font-size: 0.86rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--accent-gold);
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-bottom: 16px;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col ul li a {
            font-size: 0.86rem;
            color: var(--text-muted);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-bottom p {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

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

        .footer-badge {
            font-size: 0.7rem;
            font-weight: 600;
            color: var(--text-muted);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            padding: 6px 12px;
            border-radius: var(--radius-full);
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        /* ========== FAB ========== */
        .fab-left {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: var(--z-fab);
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-dark));
            box-shadow: var(--shadow-gold), 0 8px 32px rgba(255, 215, 0, 0.25);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.35rem;
            color: var(--bg-dark);
            border: 2px solid rgba(255, 255, 255, 0.3);
            cursor: pointer;
            transition: all var(--transition-base);
            opacity: 0.7;
            animation: fab-breathe 3s ease-in-out infinite;
        }

        .fab-left:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 8px 40px rgba(255, 215, 0, 0.45);
        }

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

        .fab-notification {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--accent-red);
            border: 2px solid var(--bg-dark);
            animation: pulse-dot 2s ease-in-out infinite;
        }

        @keyframes fab-breathe {
            0%, 100% { box-shadow: var(--shadow-gold), 0 8px 32px rgba(255, 215, 0, 0.25); }
            50% { box-shadow: var(--shadow-gold), 0 8px 44px rgba(255, 215, 0, 0.45); }
        }

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

            .hero-visual {
                min-height: 0;
                max-width: 340px;
                margin: 0 auto;
            }

            .news-layout {
                grid-template-columns: 1fr;
            }

            .news-panel {
                position: static;
            }

            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }

            .footer-brand {
                grid-column: span 2;
            }
        }

        @media (max-width: 768px) {
            :root {
                --container-padding: 16px;
                --header-height: 64px;
            }

            .nav-desktop {
                display: none;
            }

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

            .mobile-menu {
                display: flex;
            }

            .header-actions .btn-login,
            .header-actions .btn-signup {
                padding: 8px 14px;
                font-size: 0.78rem;
            }

            .logo-text strong {
                font-size: 0.8rem;
            }

            .logo-text span {
                font-size: 0.6rem;
            }

            .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 1.1rem;
            }

            .hero {
                min-height: auto;
                padding-top: calc(var(--header-height) + 20px);
                padding-bottom: 40px;
            }

            .hero-title {
                font-size: clamp(1.6rem, 6vw, 2.2rem);
            }

            .hero-desc {
                font-size: 0.92rem;
            }

            .hero-stats {
                gap: 18px;
            }

            .hero-stat strong {
                font-size: 1.25rem;
            }

            .section {
                padding-top: 48px;
                padding-bottom: 48px;
            }

            .section-header {
                margin-bottom: 26px;
            }

            .section-title {
                font-size: clamp(1.3rem, 4vw, 1.7rem);
            }

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

            .value-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }

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

            .feed-scroll {
                grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
                gap: 12px;
            }

            .promo-banner {
                padding: 26px 22px;
                flex-direction: column;
                align-items: flex-start;
                gap: 20px;
            }

            .promo-left h3 {
                font-size: 1.2rem;
            }

            .timer-block {
                padding: 8px 12px;
                min-width: 50px;
            }

            .timer-block strong {
                font-size: 1.2rem;
            }

            .news-item {
                gap: 12px;
                padding: 14px 0;
            }

            .news-item-meta {
                min-width: 50px;
            }

            .faq-question {
                padding: 16px 16px;
                font-size: 0.88rem;
            }

            .faq-answer-inner {
                padding: 0 16px 16px;
                font-size: 0.82rem;
            }

            .cta-section {
                padding: 36px 20px;
                border-radius: var(--radius-lg);
            }

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

            .footer-brand {
                grid-column: span 1;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }

            .fab-left {
                width: 48px;
                height: 48px;
                font-size: 1.15rem;
                left: 12px;
                bottom: 84px;
            }
        }

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

            .feed-scroll {
                grid-template-columns: 1fr 1fr;
            }

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

            .hero-actions {
                flex-direction: column;
            }

            .hero-actions .btn {
                width: 100%;
            }

            .hero-stats {
                gap: 14px;
            }

            .hero-stat strong {
                font-size: 1.1rem;
            }

            .cta-actions {
                flex-direction: column;
            }

            .cta-actions .btn {
                width: 100%;
            }

            .header-actions .btn-login {
                display: none;
            }

            .footer-badges {
                gap: 6px;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #0A2E1C;
            --bg-secondary: #123E25;
            --bg-tertiary: #0D3823;
            --bg-dark: #072113;
            --accent-gold: #FFD700;
            --accent-gold-light: #FFDF40;
            --accent-gold-dark: #C5A000;
            --accent-red: #D32F2F;
            --accent-red-dark: #B71C1C;
            --text-white: #FFFFFF;
            --text-pale: #D1F2EB;
            --text-muted: #9BC4B4;
            --border-gold: rgba(255, 215, 0, 0.45);
            --border-gold-light: rgba(255, 215, 0, 0.25);
            --card-bg: rgba(18, 62, 37, 0.85);
            --card-bg-hover: rgba(18, 62, 37, 0.95);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.35);
            --shadow-lg: 0 12px 48px rgba(0, 0, 0, 0.5);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.3);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --radius-full: 9999px;
            --font-base: 'Be Vietnam Pro', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --font-heading: 'Be Vietnam Pro', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
            --container-max: 1240px;
            --container-padding: 24px;
            --header-height: 76px;
            --z-header: 100;
            --z-fab: 90;
            --z-mobile-menu: 110;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-base);
            line-height: 1.6;
            background-color: var(--bg-primary);
            color: var(--text-white);
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-tap-highlight-color: transparent;
        }

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

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

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

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

        button {
            cursor: pointer;
        }

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

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: var(--container-padding);
            padding-right: var(--container-padding);
            width: 100%;
        }

        /* ========== HEADER ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: var(--z-header);
            background: rgba(7, 33, 19, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-gold-light);
            height: var(--header-height);
            transition: box-shadow var(--transition-base), background var(--transition-base);
        }

        .site-header.scrolled {
            background: rgba(7, 33, 19, 0.98);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            height: var(--header-height);
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            color: var(--text-white);
            font-weight: 700;
            font-size: 1.05rem;
            line-height: 1.3;
            max-width: 340px;
            flex-shrink: 0;
            transition: opacity var(--transition-fast);
        }

        .logo-link:hover {
            opacity: 0.88;
            color: var(--text-white);
        }

        .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-dark));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.35rem;
            flex-shrink: 0;
            box-shadow: var(--shadow-gold);
        }

        .logo-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }

        .logo-text strong {
            font-weight: 800;
            font-size: 0.95rem;
            white-space: nowrap;
        }

        .logo-text span {
            font-weight: 500;
            font-size: 0.72rem;
            color: var(--text-muted);
            white-space: nowrap;
        }

        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
            justify-content: center;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 0.88rem;
            color: var(--text-pale);
            text-decoration: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

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

        .nav-link.active {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.12);
            font-weight: 700;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 20px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 0.88rem;
            text-decoration: none;
            transition: all var(--transition-base);
            border: 2px solid transparent;
            cursor: pointer;
            line-height: 1.2;
        }

        .btn-login {
            background: transparent;
            border-color: var(--border-gold);
            color: var(--accent-gold);
        }

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

        .btn-signup {
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-dark));
            color: var(--bg-dark);
            border-color: var(--accent-gold);
            box-shadow: var(--shadow-gold);
        }

        .btn-signup:hover {
            background: linear-gradient(135deg, var(--accent-gold-light), var(--accent-gold));
            color: var(--bg-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 28px rgba(255, 215, 0, 0.45);
        }

        .btn-signup:active {
            transform: translateY(0);
            box-shadow: var(--shadow-sm);
        }

        .mobile-menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-gold-light);
            background: rgba(255, 215, 0, 0.06);
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
        }

        .mobile-menu-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--accent-gold);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        .mobile-menu-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .mobile-menu-toggle.active span:nth-child(2) {
            opacity: 0;
        }

        .mobile-menu-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            background: rgba(7, 33, 19, 0.98);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-gold-light);
            padding: 16px 20px 24px;
            z-index: var(--z-mobile-menu);
            flex-direction: column;
            gap: 8px;
        }

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

        .mobile-menu .nav-link {
            padding: 12px 16px;
            font-size: 1rem;
            border-radius: var(--radius-md);
        }

        .mobile-menu-cta {
            display: flex;
            gap: 10px;
            margin-top: 12px;
        }

        /* ========== HERO ========== */
        .hero-section {
            padding: calc(var(--header-height) + 60px) 0 60px;
            background-image: url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            background-attachment: scroll;
            position: relative;
            min-height: 560px;
            display: flex;
            align-items: center;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(160deg, rgba(7, 33, 19, 0.92) 0%, rgba(10, 46, 28, 0.75) 40%, rgba(7, 33, 19, 0.88) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .hero-left {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 215, 0, 0.12);
            border: 1px solid var(--border-gold);
            padding: 8px 16px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--accent-gold);
            width: fit-content;
        }

        .hero-badge i {
            font-size: 0.9rem;
        }

        .hero-title {
            font-size: 2.8rem;
            font-weight: 900;
            line-height: 1.2;
            letter-spacing: -0.02em;
            color: var(--text-white);
            margin: 0;
        }

        .hero-title .highlight {
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-subtitle {
            font-size: 1.1rem;
            line-height: 1.7;
            color: var(--text-pale);
            max-width: 520px;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-top: 8px;
        }

        .btn-hero-primary {
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-dark));
            color: var(--bg-dark);
            padding: 14px 28px;
            border-radius: var(--radius-full);
            font-weight: 800;
            font-size: 1rem;
            border: 2px solid var(--accent-gold);
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-base);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-hero-primary:hover {
            background: linear-gradient(135deg, var(--accent-gold-light), var(--accent-gold));
            color: var(--bg-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(255, 215, 0, 0.5);
        }

        .btn-hero-secondary {
            background: transparent;
            color: var(--accent-gold);
            padding: 14px 28px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 1rem;
            border: 2px solid var(--border-gold);
            transition: all var(--transition-base);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

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

        .hero-stats {
            display: flex;
            gap: 32px;
            margin-top: 12px;
        }

        .hero-stat {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .hero-stat-number {
            font-size: 1.8rem;
            font-weight: 900;
            color: var(--accent-gold);
            line-height: 1.1;
        }

        .hero-stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        .hero-right {
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .hero-visual-card {
            background: var(--card-bg);
            border-radius: var(--radius-xl);
            padding: 32px;
            border: 1px solid var(--border-gold-light);
            box-shadow: var(--shadow-lg);
            width: 100%;
            max-width: 420px;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .hero-visual-card .visual-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            aspect-ratio: 16/10;
            background: var(--bg-tertiary);
        }

        .hero-visual-card .visual-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .hero-visual-card:hover .visual-image img {
            transform: scale(1.05);
        }

        .hero-visual-card .visual-tag {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }

        .visual-tag span {
            padding: 6px 14px;
            border-radius: var(--radius-full);
            font-size: 0.78rem;
            font-weight: 600;
            background: rgba(255, 215, 0, 0.1);
            border: 1px solid var(--border-gold-light);
            color: var(--accent-gold);
        }

        .visual-tag span.hot {
            background: rgba(211, 47, 47, 0.2);
            border-color: rgba(211, 47, 47, 0.5);
            color: #FF6B6B;
        }

        /* ========== SECTION SHARED ========== */
        .section {
            padding: 64px 0;
        }

        .section-header {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-bottom: 40px;
            text-align: left;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            font-size: 0.85rem;
            color: var(--accent-gold);
            text-transform: uppercase;
            letter-spacing: 0.08em;
        }

        .section-label::before {
            content: '';
            display: inline-block;
            width: 24px;
            height: 2px;
            background: var(--accent-gold);
            border-radius: 2px;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-white);
            margin: 0;
            max-width: 700px;
        }

        .section-desc {
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-muted);
            max-width: 600px;
        }

        /* ========== PAIN POINTS ========== */
        .pain-section {
            background: var(--bg-dark);
        }

        .pain-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 20px;
        }

        .pain-item {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            padding: 24px;
            border: 1px solid var(--border-gold-light);
            transition: all var(--transition-base);
        }

        .pain-item:hover {
            background: var(--card-bg-hover);
            border-color: var(--border-gold);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .pain-item-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-md);
            background: rgba(255, 215, 0, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--accent-gold);
            margin-bottom: 14px;
        }

        .pain-item h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 8px;
        }

        .pain-item p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.65;
        }

        /* ========== BENEFITS ========== */
        .benefits-section {
            background: var(--bg-primary);
        }

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

        .benefit-card {
            background: var(--card-bg);
            border-radius: var(--radius-xl);
            padding: 28px;
            border: 1px solid var(--border-gold-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

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

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

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

        .benefit-card-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-lg);
            background: linear-gradient(135deg, rgba(255, 215, 0, 0.18), rgba(255, 215, 0, 0.05));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--accent-gold);
            margin-bottom: 18px;
            border: 1px solid var(--border-gold-light);
        }

        .benefit-card h3 {
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 10px;
        }

        .benefit-card p {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .benefit-card .benefit-tag {
            display: inline-block;
            margin-top: 14px;
            padding: 6px 14px;
            border-radius: var(--radius-full);
            background: rgba(255, 215, 0, 0.1);
            border: 1px solid var(--border-gold-light);
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--accent-gold);
        }

        /* ========== STEPS ========== */
        .steps-section {
            background: var(--bg-dark);
        }

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

        .steps-list {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .step-item {
            display: flex;
            gap: 16px;
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            padding: 20px 24px;
            border: 1px solid var(--border-gold-light);
            transition: all var(--transition-base);
        }

        .step-item:hover {
            background: var(--card-bg-hover);
            border-color: var(--border-gold);
            transform: translateX(4px);
        }

        .step-number {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-full);
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-dark));
            color: var(--bg-dark);
            font-weight: 900;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            align-self: flex-start;
        }

        .step-content h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 6px;
        }

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

        .steps-image-wrap {
            border-radius: var(--radius-xl);
            overflow: hidden;
            border: 1px solid var(--border-gold-light);
            box-shadow: var(--shadow-lg);
            aspect-ratio: 4/3;
            background: var(--bg-tertiary);
        }

        .steps-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .steps-image-wrap:hover img {
            transform: scale(1.04);
        }

        /* ========== TIPS / STRATEGY ========== */
        .tips-section {
            background: var(--bg-primary);
        }

        .tips-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 20px;
        }

        .tip-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            padding: 26px;
            border: 1px solid var(--border-gold-light);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .tip-card:hover {
            background: var(--card-bg-hover);
            border-color: var(--border-gold);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

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

        .tip-card-top i {
            font-size: 1.5rem;
            color: var(--accent-gold);
        }

        .tip-level {
            padding: 4px 12px;
            border-radius: var(--radius-full);
            font-size: 0.75rem;
            font-weight: 700;
            background: rgba(255, 215, 0, 0.12);
            color: var(--accent-gold);
            border: 1px solid var(--border-gold-light);
        }

        .tip-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-white);
        }

        .tip-card p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.65;
            flex: 1;
        }

        /* ========== STATS ========== */
        .stats-section {
            background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-tertiary) 50%, var(--bg-dark) 100%);
            padding: 56px 0;
            border-top: 1px solid var(--border-gold-light);
            border-bottom: 1px solid var(--border-gold-light);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
            gap: 24px;
            text-align: center;
        }

        .stat-block {
            display: flex;
            flex-direction: column;
            gap: 6px;
            padding: 20px;
        }

        .stat-block-number {
            font-size: 2.5rem;
            font-weight: 900;
            color: var(--accent-gold);
            line-height: 1.1;
        }

        .stat-block-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: var(--bg-dark);
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
            max-width: 820px;
        }

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

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            cursor: pointer;
            transition: background var(--transition-fast);
            width: 100%;
            text-align: left;
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-white);
            background: none;
            border: none;
        }

        .faq-question:hover {
            background: rgba(255, 215, 0, 0.05);
        }

        .faq-question i {
            color: var(--accent-gold);
            font-size: 1rem;
            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 var(--transition-slow), padding var(--transition-slow);
            padding: 0 24px;
        }

        .faq-item.active .faq-answer {
            max-height: 500px;
            padding: 0 24px 20px;
        }

        .faq-answer p {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: var(--bg-primary);
            padding: 72px 0;
        }

        .cta-box {
            background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 50%, var(--bg-secondary) 100%);
            border-radius: var(--radius-xl);
            border: 1px solid var(--border-gold);
            padding: 48px 40px;
            text-align: center;
            display: flex;
            flex-direction: column;
            gap: 20px;
            align-items: center;
            box-shadow: var(--shadow-lg);
            position: relative;
            overflow: hidden;
        }

        .cta-box::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 215, 0, 0.15), transparent 70%);
            pointer-events: none;
        }

        .cta-box::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(211, 47, 47, 0.15), transparent 70%);
            pointer-events: none;
        }

        .cta-box h2 {
            font-size: 2rem;
            font-weight: 900;
            color: var(--text-white);
            line-height: 1.25;
            max-width: 600px;
            position: relative;
            z-index: 1;
        }

        .cta-box h2 .highlight {
            color: var(--accent-gold);
        }

        .cta-box p {
            font-size: 1rem;
            color: var(--text-pale);
            max-width: 520px;
            line-height: 1.7;
            position: relative;
            z-index: 1;
        }

        .cta-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            justify-content: center;
            position: relative;
            z-index: 1;
        }

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

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

        .footer-brand .logo-link {
            margin-bottom: 16px;
            max-width: none;
        }

        .footer-brand p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 380px;
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
        }

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

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

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
            padding-top: 24px;
            border-top: 1px solid var(--border-gold-light);
        }

        .footer-bottom p {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .footer-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .footer-badge {
            padding: 6px 14px;
            border-radius: var(--radius-full);
            background: rgba(255, 215, 0, 0.08);
            border: 1px solid var(--border-gold-light);
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--text-pale);
        }

        /* ========== FAB ========== */
        .fab {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: var(--z-fab);
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: radial-gradient(circle at 30% 25%, #1a3a28, #0a2e1c);
            border: 2px solid var(--accent-gold);
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--accent-gold);
            text-decoration: none;
            transition: all var(--transition-base);
            cursor: pointer;
            opacity: 0.7;
            animation: fabBreath 3s ease-in-out infinite;
        }

        .fab:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 6px 28px rgba(255, 215, 0, 0.5);
            color: var(--accent-gold-light);
        }

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

        .fab .fab-notification {
            position: absolute;
            top: 4px;
            right: 4px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--accent-red);
            border: 2px solid var(--bg-dark);
            animation: blink 1.8s ease-in-out infinite;
        }

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

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

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-title {
                font-size: 2.2rem;
            }
            .hero-content {
                gap: 32px;
            }
            .steps-layout {
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 64px;
                --container-padding: 16px;
            }

            .nav-desktop {
                display: none;
            }

            .header-actions {
                display: none;
            }

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

            .logo-link {
                max-width: 240px;
                font-size: 0.9rem;
            }

            .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 1.1rem;
            }

            .logo-text strong {
                font-size: 0.8rem;
            }

            .logo-text span {
                font-size: 0.65rem;
            }

            .hero-section {
                padding: calc(var(--header-height) + 32px) 0 40px;
                min-height: auto;
            }

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

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

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

            .hero-stats {
                gap: 20px;
            }

            .hero-stat-number {
                font-size: 1.5rem;
            }

            .hero-visual-card {
                padding: 20px;
                max-width: 100%;
            }

            .section {
                padding: 48px 0;
            }

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

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

            .steps-image-wrap {
                aspect-ratio: 16/10;
            }

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

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

            .cta-box {
                padding: 32px 20px;
            }

            .cta-box h2 {
                font-size: 1.5rem;
            }

            .fab {
                left: 12px;
                bottom: 72px;
                width: 48px;
                height: 48px;
                font-size: 1.1rem;
            }

            .mobile-menu-cta .btn {
                font-size: 0.82rem;
                padding: 10px 14px;
            }
        }

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

            .hero-actions {
                flex-direction: column;
                gap: 10px;
            }

            .btn-hero-primary,
            .btn-hero-secondary {
                padding: 12px 20px;
                font-size: 0.9rem;
                justify-content: center;
            }

            .hero-stats {
                flex-wrap: wrap;
                gap: 16px;
            }

            .section-title {
                font-size: 1.4rem;
            }

            .pain-grid,
            .benefits-grid,
            .tips-grid {
                grid-template-columns: 1fr;
            }

            .step-item {
                padding: 16px 18px;
                gap: 12px;
            }

            .step-number {
                width: 36px;
                height: 36px;
                font-size: 0.95rem;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }

            .stat-block-number {
                font-size: 2rem;
            }

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

            .cta-actions .btn {
                width: 100%;
                justify-content: center;
            }

            .fab {
                left: 10px;
                bottom: 64px;
                width: 44px;
                height: 44px;
                font-size: 1rem;
                border-width: 1.5px;
            }
        }

/* roulang page: article */
:root {
            --bg-primary: #0A2E1C;
            --bg-secondary: #123E25;
            --bg-tertiary: #0D3823;
            --bg-dark: #072113;
            --accent-gold: #FFD700;
            --accent-gold-light: #FFDF40;
            --accent-gold-dark: #C5A000;
            --accent-red: #D32F2F;
            --accent-red-dark: #B71C1C;
            --text-white: #FFFFFF;
            --text-pale: #D1F2EB;
            --text-muted: #9BC4B4;
            --border-gold: rgba(255, 215, 0, 0.45);
            --border-gold-light: rgba(255, 215, 0, 0.25);
            --card-bg: rgba(18, 62, 37, 0.85);
            --card-bg-hover: rgba(18, 62, 37, 0.95);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.35);
            --shadow-lg: 0 12px 48px rgba(0, 0, 0, 0.5);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.3);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --radius-full: 9999px;
            --font-base: 'Be Vietnam Pro', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --font-heading: 'Be Vietnam Pro', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
            --container-max: 1240px;
            --container-padding: 24px;
            --header-height: 76px;
            --z-header: 100;
            --z-fab: 90;
            --z-mobile-menu: 110;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-base);
            line-height: 1.6;
            background-color: var(--bg-primary);
            color: var(--text-white);
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-tap-highlight-color: transparent;
        }

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

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

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

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

        button {
            cursor: pointer;
        }

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

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: var(--container-padding);
            padding-right: var(--container-padding);
            width: 100%;
        }

        /* ========== HEADER ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: var(--z-header);
            background: rgba(7, 33, 19, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-gold-light);
            height: var(--header-height);
            transition: box-shadow var(--transition-base), background var(--transition-base);
        }

        .site-header.scrolled {
            background: rgba(7, 33, 19, 0.98);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            height: var(--header-height);
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            color: var(--text-white);
            font-weight: 700;
            font-size: 1.05rem;
            line-height: 1.3;
            max-width: 340px;
            flex-shrink: 0;
            transition: opacity var(--transition-fast);
        }

        .logo-link:hover {
            opacity: 0.88;
            color: var(--text-white);
        }

        .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-dark));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.35rem;
            flex-shrink: 0;
            box-shadow: var(--shadow-gold);
        }

        .logo-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }

        .logo-text strong {
            font-weight: 800;
            font-size: 1.05rem;
            color: var(--text-white);
        }

        .logo-text span {
            font-size: 0.75rem;
            color: var(--text-muted);
            font-weight: 400;
        }

        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            justify-content: center;
            flex-wrap: wrap;
        }

        .nav-link {
            padding: 8px 16px;
            border-radius: var(--radius-full);
            color: var(--text-pale);
            font-size: 0.9rem;
            font-weight: 600;
            text-decoration: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

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

        .nav-link.active {
            color: var(--bg-dark);
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-light));
            box-shadow: var(--shadow-gold);
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 11px 22px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 0.9rem;
            text-decoration: none;
            transition: all var(--transition-base);
            border: 2px solid transparent;
            white-space: nowrap;
            line-height: 1.2;
        }

        .btn-login {
            background: transparent;
            color: var(--accent-gold);
            border-color: var(--border-gold);
        }

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

        .btn-signup {
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-light));
            color: var(--bg-dark);
            box-shadow: var(--shadow-gold);
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255, 215, 0, 0.45);
            color: var(--bg-dark);
        }

        .btn-gold {
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-light));
            color: var(--bg-dark);
            box-shadow: var(--shadow-gold);
            border: none;
        }

        .btn-gold:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 32px rgba(255, 215, 0, 0.5);
            color: var(--bg-dark);
        }

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

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

        .btn-lg {
            padding: 14px 32px;
            font-size: 1rem;
        }

        .mobile-menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            background: transparent;
            border: none;
            cursor: pointer;
            z-index: var(--z-mobile-menu);
        }

        .mobile-menu-toggle span {
            display: block;
            width: 26px;
            height: 3px;
            background: var(--accent-gold);
            border-radius: 3px;
            transition: all var(--transition-base);
        }

        .mobile-menu-toggle.open span:nth-child(1) {
            transform: translateY(8px) rotate(45deg);
        }

        .mobile-menu-toggle.open span:nth-child(2) {
            opacity: 0;
        }

        .mobile-menu-toggle.open span:nth-child(3) {
            transform: translateY(-8px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            background: rgba(7, 33, 19, 0.98);
            backdrop-filter: blur(20px);
            padding: 20px 24px 28px;
            flex-direction: column;
            gap: 8px;
            z-index: calc(var(--z-mobile-menu) - 1);
            border-bottom: 1px solid var(--border-gold-light);
            box-shadow: var(--shadow-lg);
        }

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

        .mobile-menu .nav-link {
            font-size: 1rem;
            padding: 12px 16px;
            border-radius: var(--radius-md);
        }

        .mobile-menu-cta {
            display: flex;
            gap: 12px;
            margin-top: 16px;
            padding-top: 16px;
            border-top: 1px solid var(--border-gold-light);
        }

        /* ========== ARTICLE HERO / BREADCRUMB ========== */
        .article-hero {
            padding-top: calc(var(--header-height) + 48px);
            padding-bottom: 40px;
            background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-primary) 100%);
            border-bottom: 1px solid var(--border-gold-light);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

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

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

        .breadcrumb .sep {
            color: var(--text-muted);
            opacity: 0.6;
        }

        .breadcrumb .current {
            color: var(--text-pale);
            font-weight: 500;
        }

        .article-hero-title {
            font-size: clamp(1.8rem, 4vw, 2.8rem);
            font-weight: 900;
            line-height: 1.25;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        .article-meta-item {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .article-meta-item i {
            color: var(--accent-gold);
        }

        .article-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            border-radius: var(--radius-full);
            background: rgba(255, 215, 0, 0.1);
            color: var(--accent-gold);
            font-size: 0.8rem;
            font-weight: 600;
            border: 1px solid var(--border-gold-light);
        }

        /* ========== ARTICLE BODY ========== */
        .article-main {
            padding: 48px 0 64px;
        }

        .article-content {
            max-width: 820px;
            margin: 0 auto;
        }

        .article-content .prose {
            font-size: 1.05rem;
            line-height: 1.7;
            color: var(--text-pale);
        }

        .article-content .prose h2 {
            font-size: 1.55rem;
            font-weight: 800;
            color: var(--text-white);
            margin: 36px 0 16px;
            line-height: 1.3;
            padding-left: 16px;
            border-left: 4px solid var(--accent-gold);
        }

        .article-content .prose h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-white);
            margin: 28px 0 12px;
        }

        .article-content .prose p {
            margin-bottom: 18px;
        }

        .article-content .prose ul,
        .article-content .prose ol {
            margin: 0 0 20px 24px;
        }

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

        .article-content .prose img {
            border-radius: var(--radius-lg);
            margin: 24px 0;
            box-shadow: var(--shadow-md);
            width: 100%;
        }

        .article-content .prose blockquote {
            margin: 24px 0;
            padding: 20px 24px;
            background: var(--bg-secondary);
            border-left: 4px solid var(--accent-gold);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            color: var(--text-pale);
            font-style: italic;
        }

        .article-content .prose table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            font-size: 0.95rem;
        }

        .article-content .prose table th,
        .article-content .prose table td {
            padding: 12px 16px;
            border: 1px solid var(--border-gold-light);
            text-align: left;
        }

        .article-content .prose table th {
            background: var(--bg-secondary);
            color: var(--accent-gold);
            font-weight: 700;
        }

        .article-content .prose table td {
            background: rgba(18, 62, 37, 0.5);
        }

        /* ========== SPEC TABLE / PARAMETERS ========== */
        .article-spec-section {
            max-width: 820px;
            margin: 0 auto;
            padding: 40px 0;
        }

        .article-spec-card {
            background: var(--card-bg);
            border: 1px solid var(--border-gold-light);
            border-radius: var(--radius-xl);
            padding: 36px;
            box-shadow: var(--shadow-md);
        }

        .article-spec-card h2 {
            font-size: 1.45rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .article-spec-card h2 i {
            color: var(--accent-gold);
        }

        .spec-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        .spec-item {
            padding: 16px 20px;
            background: rgba(10, 46, 28, 0.7);
            border-radius: var(--radius-md);
            border: 1px solid rgba(255, 215, 0, 0.15);
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .spec-item .spec-label {
            font-size: 0.8rem;
            text-transform: uppercase;
            letter-spacing: 0.04em;
            color: var(--text-muted);
            font-weight: 600;
        }

        .spec-item .spec-value {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--accent-gold);
        }

        /* ========== SCREENSHOT CAROUSEL ========== */
        .carousel-section {
            max-width: 920px;
            margin: 0 auto;
            padding: 40px 0;
        }

        .carousel-section h2 {
            font-size: 1.45rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .carousel-section h2 i {
            color: var(--accent-gold);
        }

        .carousel-container {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-gold-light);
            aspect-ratio: 16/9;
        }

        .carousel-track {
            display: flex;
            transition: transform var(--transition-slow);
            height: 100%;
        }

        .carousel-slide {
            flex: 0 0 100%;
            height: 100%;
            position: relative;
        }

        .carousel-slide img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .carousel-slide .slide-label {
            position: absolute;
            bottom: 20px;
            left: 20px;
            right: 20px;
            padding: 12px 20px;
            background: rgba(7, 33, 19, 0.85);
            backdrop-filter: blur(8px);
            border-radius: var(--radius-md);
            font-size: 0.9rem;
            color: var(--text-pale);
            font-weight: 500;
            border: 1px solid var(--border-gold-light);
        }

        .carousel-btn {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: rgba(7, 33, 19, 0.85);
            border: 2px solid var(--border-gold);
            color: var(--accent-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            cursor: pointer;
            transition: all var(--transition-fast);
            z-index: 5;
        }

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

        .carousel-btn.prev {
            left: 16px;
        }

        .carousel-btn.next {
            right: 16px;
        }

        .carousel-dots {
            display: flex;
            justify-content: center;
            gap: 8px;
            margin-top: 16px;
        }

        .carousel-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--border-gold-light);
            cursor: pointer;
            transition: all var(--transition-fast);
            border: none;
        }

        .carousel-dot.active {
            background: var(--accent-gold);
            transform: scale(1.25);
            box-shadow: 0 0 8px rgba(255, 215, 0, 0.5);
        }

        /* ========== DOWNLOAD / CTA STRIP ========== */
        .download-strip {
            max-width: 920px;
            margin: 0 auto;
            padding: 40px 0;
        }

        .download-card {
            background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-dark) 100%);
            border: 2px solid var(--border-gold);
            border-radius: var(--radius-xl);
            padding: 40px 36px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            box-shadow: var(--shadow-gold);
        }

        .download-info h3 {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 8px;
        }

        .download-info p {
            color: var(--text-muted);
            font-size: 0.95rem;
            max-width: 420px;
        }

        .download-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .payment-badges {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            margin-top: 16px;
        }

        .payment-badges span {
            padding: 6px 16px;
            border-radius: var(--radius-full);
            background: rgba(255, 255, 255, 0.08);
            font-size: 0.8rem;
            color: var(--text-pale);
            border: 1px solid rgba(255, 255, 255, 0.12);
            font-weight: 600;
        }

        /* ========== FAQ ========== */
        .faq-section {
            max-width: 820px;
            margin: 0 auto;
            padding: 40px 0;
        }

        .faq-section h2 {
            font-size: 1.45rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .faq-section h2 i {
            color: var(--accent-gold);
        }

        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border-gold-light);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition-base);
        }

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

        .faq-question {
            width: 100%;
            padding: 18px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-white);
            text-align: left;
            cursor: pointer;
            transition: all var(--transition-fast);
        }

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

        .faq-question i {
            color: var(--accent-gold);
            font-size: 1rem;
            transition: transform var(--transition-base);
            flex-shrink: 0;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-base);
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 500px;
            padding: 0 24px 20px;
        }

        /* ========== NOT FOUND ========== */
        .not-found {
            max-width: 640px;
            margin: 0 auto;
            padding: 40px 0;
            text-align: center;
        }

        .not-found-icon {
            font-size: 4rem;
            color: var(--accent-gold);
            margin-bottom: 20px;
        }

        .not-found h2 {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 12px;
        }

        .not-found p {
            color: var(--text-muted);
            margin-bottom: 24px;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-dark);
            border-top: 1px solid var(--border-gold-light);
            padding: 56px 0 20px;
            margin-top: 48px;
        }

        .footer-inner {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 48px;
            margin-bottom: 40px;
        }

        .footer-brand .logo-link {
            margin-bottom: 16px;
        }

        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.9rem;
            max-width: 360px;
            line-height: 1.7;
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 16px;
        }

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

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

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

        .footer-bottom {
            padding-top: 24px;
            border-top: 1px solid var(--border-gold-light);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-bottom p {
            color: var(--text-muted);
            font-size: 0.85rem;
        }

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

        .footer-badge {
            padding: 6px 12px;
            border-radius: var(--radius-full);
            background: rgba(255, 215, 0, 0.08);
            color: var(--text-pale);
            font-size: 0.75rem;
            border: 1px solid var(--border-gold-light);
            font-weight: 600;
        }

        /* ========== FAB ========== */
        .fab {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: var(--z-fab);
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: radial-gradient(circle at 30% 30%, #1e1e1e, #0a0a0a);
            border: 3px solid var(--accent-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            cursor: pointer;
            transition: all var(--transition-base);
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
            opacity: 0.7;
            animation: fab-breathe 3s ease-in-out infinite;
        }

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

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

        .fab .fab-notification {
            position: absolute;
            top: -3px;
            right: -3px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--accent-red);
            border: 2px solid var(--bg-dark);
            animation: fab-pulse 2s ease-in-out infinite;
        }

        @keyframes fab-breathe {
            0%, 100% {
                transform: translateY(0);
                opacity: 0.7;
            }
            50% {
                transform: translateY(-6px);
                opacity: 0.9;
            }
        }

        @keyframes fab-pulse {
            0%, 100% {
                box-shadow: 0 0 0 0 rgba(211, 47, 47, 0.6);
            }
            50% {
                box-shadow: 0 0 0 8px rgba(211, 47, 47, 0);
            }
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .nav-desktop {
                gap: 2px;
            }
            .nav-link {
                padding: 8px 12px;
                font-size: 0.83rem;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --container-padding: 16px;
                --header-height: 64px;
            }

            .nav-desktop {
                display: none;
            }

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

            .header-actions {
                margin-left: auto;
            }

            .header-actions .btn {
                padding: 8px 14px;
                font-size: 0.8rem;
            }

            .logo-link {
                max-width: 200px;
                font-size: 0.9rem;
            }

            .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 1.1rem;
            }

            .logo-text strong {
                font-size: 0.9rem;
            }

            .logo-text span {
                font-size: 0.68rem;
            }

            .article-hero {
                padding-top: calc(var(--header-height) + 28px);
                padding-bottom: 24px;
            }

            .article-main {
                padding: 28px 0 40px;
            }

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

            .article-spec-card {
                padding: 24px 20px;
            }

            .download-card {
                padding: 28px 22px;
                flex-direction: column;
                text-align: center;
            }

            .download-actions {
                width: 100%;
                justify-content: center;
            }

            .carousel-container {
                aspect-ratio: 4/3;
            }

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

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

            .fab {
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
                left: 12px;
                bottom: 80px;
            }
        }

        @media (max-width: 520px) {
            .header-actions .btn-login {
                padding: 7px 10px;
                font-size: 0.72rem;
            }
            .header-actions .btn-signup {
                padding: 7px 12px;
                font-size: 0.72rem;
            }

            .article-hero-title {
                font-size: 1.5rem;
            }

            .article-content .prose h2 {
                font-size: 1.3rem;
            }

            .carousel-btn {
                width: 36px;
                height: 36px;
                font-size: 0.9rem;
            }

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

/* roulang page: category2 */
:root {
            --bg-primary: #0A2E1C;
            --bg-secondary: #123E25;
            --bg-tertiary: #0D3823;
            --bg-dark: #072113;
            --accent-gold: #FFD700;
            --accent-gold-light: #FFDF40;
            --accent-gold-dark: #C5A000;
            --accent-red: #D32F2F;
            --accent-red-dark: #B71C1C;
            --text-white: #FFFFFF;
            --text-pale: #D1F2EB;
            --text-muted: #9BC4B4;
            --border-gold: rgba(255, 215, 0, 0.45);
            --border-gold-light: rgba(255, 215, 0, 0.25);
            --card-bg: rgba(18, 62, 37, 0.85);
            --card-bg-hover: rgba(18, 62, 37, 0.95);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.35);
            --shadow-lg: 0 12px 48px rgba(0, 0, 0, 0.5);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.3);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --radius-full: 9999px;
            --font-base: 'Be Vietnam Pro', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --font-heading: 'Be Vietnam Pro', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
            --container-max: 1240px;
            --container-padding: 24px;
            --header-height: 76px;
            --z-header: 100;
            --z-fab: 90;
            --z-mobile-menu: 110;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-base);
            line-height: 1.6;
            background-color: var(--bg-primary);
            color: var(--text-white);
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-tap-highlight-color: transparent;
        }

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

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

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

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

        button {
            cursor: pointer;
        }

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

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: var(--container-padding);
            padding-right: var(--container-padding);
            width: 100%;
        }

        /* ========== HEADER ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: var(--z-header);
            background: rgba(7, 33, 19, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-gold-light);
            height: var(--header-height);
            transition: box-shadow var(--transition-base), background var(--transition-base);
        }

        .site-header.scrolled {
            background: rgba(7, 33, 19, 0.98);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            height: var(--header-height);
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            color: var(--text-white);
            font-weight: 700;
            font-size: 1.05rem;
            line-height: 1.3;
            max-width: 340px;
            flex-shrink: 0;
            transition: opacity var(--transition-fast);
        }

        .logo-link:hover {
            opacity: 0.88;
            color: var(--text-white);
        }

        .logo-icon {
            width: 42px;
            height: 42px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-dark));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.35rem;
            flex-shrink: 0;
            box-shadow: var(--shadow-gold);
        }

        .logo-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }

        .logo-text strong {
            font-weight: 800;
            font-size: 1.05rem;
            letter-spacing: -0.01em;
            color: var(--text-white);
        }

        .logo-text span {
            font-weight: 400;
            font-size: 0.78rem;
            color: var(--text-pale);
            letter-spacing: 0.01em;
        }

        .nav-desktop {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            justify-content: center;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            border-radius: var(--radius-full);
            color: var(--text-pale);
            text-decoration: none;
            font-size: 0.9rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            white-space: nowrap;
            border: 1px solid transparent;
        }

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

        .nav-link.active {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.12);
            border-color: var(--border-gold);
            font-weight: 600;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 18px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 0.88rem;
            text-decoration: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
            line-height: 1.2;
            cursor: pointer;
        }

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

        .btn-login:hover {
            color: var(--accent-gold);
            border-color: var(--border-gold);
            background: rgba(255, 215, 0, 0.05);
        }

        .btn-signup {
            color: var(--bg-dark);
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-dark));
            box-shadow: var(--shadow-gold);
            border: 1px solid var(--accent-gold);
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255, 215, 0, 0.45);
            color: var(--bg-dark);
            background: linear-gradient(135deg, var(--accent-gold-light), var(--accent-gold));
        }

        .btn-lg {
            padding: 14px 28px;
            font-size: 1rem;
            border-radius: var(--radius-full);
        }

        .btn-outline-gold {
            color: var(--accent-gold);
            background: transparent;
            border: 1px solid var(--border-gold);
        }

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

        .mobile-menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-gold-light);
            background: rgba(18, 62, 37, 0.6);
            flex-shrink: 0;
        }

        .mobile-menu-toggle span {
            width: 22px;
            height: 2px;
            background: var(--accent-gold);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        .mobile-menu-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .mobile-menu-toggle.active span:nth-child(2) {
            opacity: 0;
            transform: scaleX(0);
        }

        .mobile-menu-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(7, 33, 19, 0.98);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            z-index: var(--z-mobile-menu);
            padding: 24px;
            flex-direction: column;
            gap: 8px;
            overflow-y: auto;
        }

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

        .mobile-menu .nav-link {
            font-size: 1.1rem;
            padding: 14px 16px;
            border-radius: var(--radius-md);
            border-bottom: 1px solid var(--border-gold-light);
        }

        .mobile-menu-cta {
            display: flex;
            gap: 10px;
            padding-top: 20px;
            border-top: 1px solid var(--border-gold-light);
            margin-top: 10px;
        }

        /* ========== PAGE HERO ========== */
        .page-hero {
            background-image: linear-gradient(180deg, rgba(7, 33, 19, 0.75) 0%, rgba(10, 46, 28, 0.95) 100%), url('/assets/images/backpic/back-1.jpg');
            background-size: cover;
            background-position: center;
            padding: calc(var(--header-height) + 72px) 0 88px;
            position: relative;
            border-bottom: 1px solid var(--border-gold-light);
        }

        .page-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 40%, rgba(255, 215, 0, 0.12) 0%, transparent 60%);
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.05fr 0.95fr;
            gap: 56px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .hero-badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 20px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 7px 13px;
            border-radius: var(--radius-full);
            background: rgba(255, 215, 0, 0.12);
            border: 1px solid var(--border-gold);
            color: var(--accent-gold);
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.01em;
        }

        .hero-badge.hot {
            background: rgba(211, 47, 47, 0.2);
            border-color: rgba(211, 47, 47, 0.6);
            color: #FF8A80;
        }

        .hero-badge .pulse-dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--accent-red);
            animation: pulse-dot 1.5s infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { box-shadow: 0 0 0 0 rgba(211, 47, 47, 0.6); }
            50% { box-shadow: 0 0 0 6px rgba(211, 47, 47, 0); }
        }

        .page-hero h1 {
            font-family: var(--font-heading);
            font-size: clamp(2rem, 4.5vw, 3.4rem);
            font-weight: 900;
            line-height: 1.15;
            color: var(--text-white);
            margin-bottom: 20px;
            letter-spacing: -0.02em;
        }

        .page-hero h1 .gold-text {
            background: linear-gradient(135deg, var(--accent-gold-light), var(--accent-gold));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }

        .hero-subtitle {
            font-size: 1.12rem;
            color: var(--text-pale);
            line-height: 1.65;
            margin-bottom: 30px;
            max-width: 560px;
        }

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

        .hero-stats-mini {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
        }

        .hero-stat-mini {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        .hero-stat-mini strong {
            display: block;
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--accent-gold);
        }

        .hero-visual {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-gold);
            aspect-ratio: 4 / 3;
        }

        .hero-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .hero-visual:hover img {
            transform: scale(1.05);
        }

        .hero-visual::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(7, 33, 19, 0.05) 0%, rgba(7, 33, 19, 0.55) 100%);
            pointer-events: none;
        }

        .hero-floating-tag {
            position: absolute;
            bottom: 16px;
            left: 16px;
            right: 16px;
            background: rgba(7, 33, 19, 0.9);
            backdrop-filter: blur(8px);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            padding: 12px 16px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            z-index: 2;
        }

        .hero-floating-tag span {
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--text-pale);
        }

        .hero-floating-tag .fa-arrow-down {
            color: var(--accent-gold);
            animation: bounce-down 1.5s infinite;
        }

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

        /* ========== SECTION BASE ========== */
        .section {
            padding: 76px 0;
        }

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

        .section-header {
            margin-bottom: 42px;
            max-width: 680px;
        }

        .section-kicker {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent-gold);
            margin-bottom: 12px;
        }

        .section-kicker::before {
            content: '';
            width: 28px;
            height: 2px;
            background: var(--accent-gold);
            border-radius: 2px;
        }

        .section-title {
            font-family: var(--font-heading);
            font-size: clamp(1.5rem, 3vw, 2.35rem);
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-white);
            letter-spacing: -0.01em;
        }

        .section-desc {
            color: var(--text-muted);
            font-size: 1.02rem;
            line-height: 1.65;
            margin-top: 12px;
        }

        /* ========== PAIN / SOLUTION ========== */
        .pain-solution-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }

        .pain-card,
        .solution-card {
            border-radius: var(--radius-lg);
            padding: 32px;
            border: 1px solid var(--border-gold-light);
            transition: all var(--transition-base);
        }

        .pain-card {
            background: rgba(18, 62, 37, 0.45);
            border-color: rgba(211, 47, 47, 0.3);
        }

        .pain-card:hover {
            border-color: rgba(211, 47, 47, 0.6);
            background: rgba(18, 62, 37, 0.6);
        }

        .solution-card {
            background: linear-gradient(135deg, rgba(255, 215, 0, 0.06) 0%, rgba(18, 62, 37, 0.75) 100%);
            border-color: var(--border-gold);
        }

        .solution-card:hover {
            border-color: var(--accent-gold);
            box-shadow: var(--shadow-gold);
        }

        .card-icon-circle {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-full);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
            font-size: 1.3rem;
        }

        .pain-card .card-icon-circle {
            background: rgba(211, 47, 47, 0.15);
            border: 1px solid rgba(211, 47, 47, 0.35);
            color: #FF8A80;
        }

        .solution-card .card-icon-circle {
            background: rgba(255, 215, 0, 0.15);
            border: 1px solid var(--border-gold);
            color: var(--accent-gold);
        }

        .pain-card h3,
        .solution-card h3 {
            font-family: var(--font-heading);
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .pain-card ul,
        .solution-card ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .pain-card ul li,
        .solution-card ul li {
            display: flex;
            gap: 10px;
            align-items: flex-start;
            color: var(--text-pale);
            font-size: 0.95rem;
            line-height: 1.55;
        }

        .pain-card ul li .fa-xmark {
            color: #FF8A80;
            margin-top: 3px;
            flex-shrink: 0;
        }

        .solution-card ul li .fa-check {
            color: var(--accent-gold);
            margin-top: 3px;
            flex-shrink: 0;
        }

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

        .step-item {
            background: var(--card-bg);
            border: 1px solid var(--border-gold-light);
            border-radius: var(--radius-lg);
            padding: 30px 24px;
            transition: all var(--transition-base);
            position: relative;
        }

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

        .step-number {
            font-family: var(--font-heading);
            font-size: 3rem;
            font-weight: 900;
            background: linear-gradient(135deg, var(--accent-gold-light), var(--accent-gold-dark));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            line-height: 1;
            display: block;
            margin-bottom: 14px;
        }

        .step-item h3 {
            font-family: var(--font-heading);
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .step-item p {
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.6;
        }

        /* ========== STATS BAND ========== */
        .stats-band {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            background: linear-gradient(135deg, rgba(255, 215, 0, 0.06) 0%, rgba(18, 62, 37, 0.6) 100%);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-xl);
            padding: 40px 28px;
            box-shadow: var(--shadow-md);
        }

        .stat-block {
            text-align: left;
            padding: 0 12px;
            border-right: 1px solid var(--border-gold-light);
        }

        .stat-block:last-child {
            border-right: none;
        }

        .stat-value {
            font-family: var(--font-heading);
            font-size: clamp(1.8rem, 3vw, 2.6rem);
            font-weight: 900;
            color: var(--accent-gold);
            line-height: 1.1;
            margin-bottom: 6px;
        }

        .stat-label {
            color: var(--text-muted);
            font-size: 0.88rem;
            font-weight: 500;
        }

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

        .testimonial-card {
            background: var(--card-bg);
            border: 1px solid var(--border-gold-light);
            border-radius: var(--radius-lg);
            padding: 30px;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .testimonial-card:hover {
            border-color: var(--border-gold);
            box-shadow: var(--shadow-md);
        }

        .testimonial-quote {
            font-size: 1rem;
            color: var(--text-pale);
            line-height: 1.65;
            font-style: italic;
        }

        .testimonial-quote .fa-quote-left {
            color: var(--accent-gold);
            margin-right: 8px;
            opacity: 0.6;
        }

        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .testimonial-avatar {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-full);
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-dark));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            color: var(--bg-dark);
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .testimonial-author-info strong {
            display: block;
            font-size: 0.95rem;
            font-weight: 700;
        }

        .testimonial-author-info span {
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        .testimonial-stars {
            color: var(--accent-gold);
            font-size: 0.85rem;
            letter-spacing: 2px;
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
            max-width: 840px;
        }

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

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

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            text-align: left;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-white);
            transition: color var(--transition-fast);
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: var(--radius-full);
            border: 1px solid var(--border-gold);
            color: var(--accent-gold);
            font-size: 0.85rem;
            transition: all var(--transition-base);
        }

        .faq-item.open .faq-question .faq-icon {
            background: var(--accent-gold);
            color: var(--bg-dark);
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base);
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.65;
        }

        .faq-item.open .faq-answer {
            max-height: 320px;
        }

        .faq-answer-inner {
            padding: 0 22px 20px;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background-image: linear-gradient(135deg, rgba(7, 33, 19, 0.92) 0%, rgba(18, 62, 37, 0.95) 100%), url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            padding: 80px 0;
            border-top: 1px solid var(--border-gold-light);
        }

        .cta-card {
            background: linear-gradient(135deg, rgba(255, 215, 0, 0.1) 0%, rgba(18, 62, 37, 0.9) 100%);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-xl);
            padding: 50px 44px;
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            align-items: center;
            justify-content: space-between;
            box-shadow: var(--shadow-lg);
        }

        .cta-content {
            flex: 1;
            min-width: 280px;
        }

        .cta-content h2 {
            font-family: var(--font-heading);
            font-size: clamp(1.6rem, 3vw, 2.3rem);
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 12px;
        }

        .cta-content p {
            color: var(--text-pale);
            font-size: 1.05rem;
            line-height: 1.6;
            max-width: 520px;
        }

        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            flex-shrink: 0;
        }

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

        .footer-inner {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 36px;
            border-bottom: 1px solid var(--border-gold-light);
        }

        .footer-brand {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.65;
            max-width: 380px;
        }

        .footer-col h4 {
            font-family: var(--font-heading);
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

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

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

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

        .footer-bottom {
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            justify-content: space-between;
        }

        .footer-bottom p {
            color: var(--text-muted);
            font-size: 0.82rem;
        }

        .footer-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .footer-badge {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 6px 12px;
            border-radius: var(--radius-full);
            background: rgba(255, 215, 0, 0.08);
            border: 1px solid var(--border-gold-light);
            color: var(--text-pale);
            font-size: 0.75rem;
            font-weight: 500;
        }

        /* ========== FAB ========== */
        .fab-royal {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: var(--z-fab);
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(145deg, #1A1A1A 0%, #0D0D0D 100%);
            border: 2px solid var(--accent-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--accent-gold);
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3), inset 0 1px 0 rgba(255, 215, 0, 0.2);
            cursor: pointer;
            opacity: 0.7;
            transition: all var(--transition-base);
            animation: fab-float 3s ease-in-out infinite;
            text-decoration: none;
        }

        .fab-royal:hover {
            opacity: 1;
            transform: scale(1.1) rotate(360deg);
            box-shadow: 0 8px 32px rgba(255, 215, 0, 0.5), inset 0 1px 0 rgba(255, 215, 0, 0.3);
            color: var(--accent-gold-light);
        }

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

        .fab-royal .fab-notification {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: #E53935;
            border: 2px solid #1A1A1A;
            animation: fab-blink 2s infinite;
        }

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

        @keyframes fab-blink {
            0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(229, 57, 53, 0.5); }
            50% { opacity: 0.6; box-shadow: 0 0 0 5px rgba(229, 57, 53, 0); }
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-grid {
                gap: 36px;
            }

            .nav-desktop {
                gap: 2px;
            }

            .nav-link {
                padding: 8px 10px;
                font-size: 0.82rem;
            }

            .header-actions .btn {
                padding: 9px 14px;
                font-size: 0.82rem;
            }

            .stats-band {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
                padding: 32px 20px;
            }

            .stat-block {
                border-right: none;
                border-bottom: 1px solid var(--border-gold-light);
                padding-bottom: 16px;
                text-align: center;
            }

            .stat-block:nth-child(3),
            .stat-block:nth-child(4) {
                border-bottom: none;
                padding-bottom: 0;
            }
        }

        @media (max-width: 768px) {
            :root {
                --container-padding: 18px;
                --header-height: 64px;
            }

            .nav-desktop {
                display: none;
            }

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

            .header-actions {
                display: flex;
                gap: 8px;
            }

            .header-actions .btn {
                padding: 8px 12px;
                font-size: 0.78rem;
            }

            .logo-link {
                max-width: 220px;
                font-size: 0.9rem;
            }

            .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 1.1rem;
            }

            .logo-text strong {
                font-size: 0.9rem;
            }

            .logo-text span {
                font-size: 0.68rem;
            }

            .page-hero {
                padding: calc(var(--header-height) + 40px) 0 56px;
            }

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

            .hero-visual {
                aspect-ratio: 16 / 10;
                order: -1;
            }

            .hero-stats-mini {
                gap: 18px;
            }

            .pain-solution-grid {
                grid-template-columns: 1fr;
            }

            .steps-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

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

            .section {
                padding: 52px 0;
            }

            .cta-card {
                padding: 32px 24px;
                flex-direction: column;
                align-items: flex-start;
            }

            .cta-actions {
                width: 100%;
            }

            .cta-actions .btn {
                flex: 1;
                justify-content: center;
            }

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

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                text-align: left;
            }

            .fab-royal {
                width: 50px;
                height: 50px;
                font-size: 1.2rem;
                left: 14px;
                bottom: 88px;
            }
        }

        @media (max-width: 520px) {
            .header-actions .btn-login {
                display: none;
            }

            .header-actions .btn-signup {
                padding: 8px 14px;
                font-size: 0.78rem;
            }

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

            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }

            .hero-stats-mini {
                flex-direction: column;
                gap: 12px;
            }

            .stats-band {
                grid-template-columns: 1fr;
                gap: 16px;
                padding: 24px 16px;
            }

            .stat-block {
                border-bottom: 1px solid var(--border-gold-light);
                padding-bottom: 12px;
            }

            .stat-block:last-child {
                border-bottom: none;
                padding-bottom: 0;
            }

            .testimonial-card {
                padding: 22px;
            }

            .cta-section {
                padding: 56px 0;
            }

            .cta-card {
                padding: 26px 18px;
                border-radius: var(--radius-lg);
            }
        }