/* roulang page: index */
:root {
            --bg-primary: #0A2E1C;
            --bg-secondary: #123E25;
            --bg-dark: #071F13;
            --bg-card: #0E3522;
            --bg-card-hover: #144229;
            --accent-gold: #FFD700;
            --accent-gold-soft: #F5C84C;
            --accent-red: #D32F2F;
            --accent-red-soft: #EF5350;
            --text-white: #FFFFFF;
            --text-mint: #D1F2EB;
            --text-soft: #B8DCCF;
            --text-muted: #8BB8A6;
            --border-gold: rgba(255, 215, 0, 0.35);
            --border-gold-strong: rgba(255, 215, 0, 0.7);
            --border-light: rgba(209, 242, 235, 0.12);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --radius-full: 9999px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.15);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.25);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.35);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.3);
            --shadow-gold-lg: 0 8px 32px rgba(255, 215, 0, 0.4);
            --font-main: 'Be Vietnam Pro', sans-serif;
            --font-display: 'Playfair Display', serif;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --transition-slow: 0.5s ease;
            --container-max: 1200px;
            --header-height: 76px;
            --header-height-mobile: 64px;
        }

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

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

        body {
            font-family: var(--font-main);
            background-color: var(--bg-primary);
            color: var(--text-white);
            line-height: 1.65;
            font-size: 16px;
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            background-image: radial-gradient(ellipse at top left, rgba(18, 62, 37, 0.8) 0%, transparent 60%),
                radial-gradient(ellipse at bottom right, rgba(7, 31, 19, 0.9) 0%, transparent 55%);
            background-attachment: fixed;
        }

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

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

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

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

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

        ::selection {
            background: var(--accent-gold);
            color: var(--bg-dark);
        }

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

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== HEADER / NAV ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(7, 31, 19, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-light);
            height: var(--header-height);
            transition: background var(--transition-base), box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            background: rgba(7, 31, 19, 0.97);
            box-shadow: var(--shadow-md);
            border-bottom-color: var(--border-gold);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 20px;
        }

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

        .logo-icon {
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--accent-gold) 0%, #C8A415 100%);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--bg-dark);
            box-shadow: var(--shadow-gold);
            transition: transform var(--transition-base);
        }

        .logo:hover .logo-icon {
            transform: scale(1.08) rotate(-5deg);
        }

        .logo-text {
            font-weight: 800;
            font-size: 15px;
            line-height: 1.3;
            color: var(--text-white);
            max-width: 220px;
            letter-spacing: -0.01em;
        }

        .logo-text span {
            color: var(--accent-gold);
        }

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

        .main-nav a {
            color: var(--text-mint);
            font-weight: 500;
            font-size: 14px;
            padding: 8px 16px;
            border-radius: var(--radius-full);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .main-nav a:hover {
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.06);
        }

        .main-nav a.active {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.1);
            font-weight: 600;
        }

        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--accent-gold);
            border-radius: 2px;
        }

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

        .btn-login-desktop {
            color: var(--text-mint);
            font-weight: 600;
            font-size: 14px;
            padding: 8px 18px;
            border-radius: var(--radius-full);
            transition: all var(--transition-fast);
            border: 1px solid transparent;
        }

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

        .btn-signup-desktop {
            background: linear-gradient(135deg, var(--accent-gold) 0%, #C8A415 100%);
            color: var(--bg-dark);
            font-weight: 700;
            font-size: 14px;
            padding: 10px 22px;
            border-radius: var(--radius-full);
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-signup-desktop:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-gold-lg);
            color: var(--bg-dark);
        }

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

        .mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 8px;
            border: 1px solid var(--border-light);
            background: rgba(255, 255, 255, 0.04);
        }

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

        .mobile-toggle.open span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
            background: var(--accent-gold);
        }

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

        .mobile-toggle.open span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
            background: var(--accent-gold);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(7, 31, 19, 0.98);
            backdrop-filter: blur(24px);
            z-index: 99;
            padding: 32px 24px;
            flex-direction: column;
            gap: 8px;
            overflow-y: auto;
        }

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

        .mobile-menu a {
            color: var(--text-mint);
            font-weight: 500;
            font-size: 17px;
            padding: 14px 18px;
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.04);
            transition: all var(--transition-fast);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .mobile-menu a:hover {
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.08);
        }

        .mobile-menu a.active {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.1);
            font-weight: 600;
        }

        .mobile-menu-actions {
            display: flex;
            gap: 12px;
            margin-top: 16px;
            padding-top: 20px;
            border-top: 1px solid var(--border-light);
        }

        .mobile-menu-actions .btn-signup-desktop {
            flex: 1;
            text-align: center;
        }

        .mobile-menu-actions .btn-login-desktop {
            flex: 1;
            text-align: center;
            border-color: var(--border-light);
        }

        /* ===== HERO ===== */
        .hero {
            padding: calc(var(--header-height) + 48px) 0 60px;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
            opacity: 0.18;
            z-index: 0;
        }

        .hero::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(180deg, rgba(7, 31, 19, 0.65) 0%, var(--bg-primary) 90%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 780px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 215, 0, 0.12);
            border: 1px solid var(--border-gold);
            color: var(--accent-gold);
            font-size: 13px;
            font-weight: 600;
            padding: 7px 16px;
            border-radius: var(--radius-full);
            margin-bottom: 20px;
            letter-spacing: 0.02em;
        }

        .hero-badge i {
            font-size: 14px;
        }

        .hero h1 {
            font-family: var(--font-display);
            font-size: clamp(32px, 5vw, 52px);
            font-weight: 700;
            line-height: 1.2;
            color: var(--text-white);
            margin-bottom: 20px;
            letter-spacing: -0.02em;
        }

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

        .hero p {
            font-size: 17px;
            line-height: 1.7;
            color: var(--text-mint);
            margin-bottom: 28px;
            max-width: 650px;
        }

        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 28px;
            margin-bottom: 32px;
        }

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

        .hero-stat-number {
            font-size: 28px;
            font-weight: 800;
            color: var(--accent-gold);
            line-height: 1.1;
        }

        .hero-stat-label {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
        }

        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--accent-gold) 0%, #C8A415 100%);
            color: var(--bg-dark);
            font-weight: 700;
            font-size: 15px;
            padding: 14px 30px;
            border-radius: var(--radius-full);
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            letter-spacing: 0.01em;
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-gold-lg);
            color: var(--bg-dark);
        }

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

        .btn-secondary {
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-white);
            font-weight: 600;
            font-size: 15px;
            padding: 14px 28px;
            border-radius: var(--radius-full);
            border: 1px solid var(--border-light);
            transition: all var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: var(--border-gold);
            color: var(--text-white);
        }

        .hero-visual {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-top: 40px;
        }

        .hero-compare-card {
            background: rgba(10, 46, 28, 0.85);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 24px;
            transition: all var(--transition-base);
        }

        .hero-compare-card.recommended {
            border-color: var(--border-gold-strong);
            background: rgba(255, 215, 0, 0.06);
            box-shadow: var(--shadow-gold);
            position: relative;
        }

        .hero-compare-card.recommended::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-gold), #C8A415, var(--accent-gold));
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        }

        .hero-compare-card h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-white);
        }

        .hero-compare-card h3 i {
            color: var(--accent-gold);
            margin-right: 8px;
        }

        .hero-compare-card p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.6;
        }

        .hero-compare-card .tag-recommended {
            display: inline-block;
            background: var(--accent-red);
            color: var(--text-white);
            font-size: 11px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: var(--radius-full);
            text-transform: uppercase;
            letter-spacing: 0.04em;
            margin-bottom: 12px;
        }

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

        .section-alt {
            background: rgba(7, 31, 19, 0.5);
        }

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

        .section-label {
            display: inline-block;
            font-size: 12px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--accent-gold);
            margin-bottom: 10px;
        }

        .section-title {
            font-family: var(--font-display);
            font-size: clamp(24px, 3.5vw, 36px);
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-white);
            margin-bottom: 12px;
            letter-spacing: -0.015em;
        }

        .section-desc {
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-soft);
            max-width: 720px;
        }

        /* ===== NEWS / CMS LIST ===== */
        .news-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 28px;
        }

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

        .news-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 18px 20px;
            background: rgba(255, 255, 255, 0.03);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            transition: all var(--transition-fast);
            color: var(--text-mint);
        }

        .news-item:hover {
            background: rgba(255, 255, 255, 0.06);
            border-color: var(--border-gold);
            transform: translateX(4px);
            color: var(--text-white);
        }

        .news-item-icon {
            width: 40px;
            height: 40px;
            flex-shrink: 0;
            background: rgba(255, 215, 0, 0.08);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: var(--accent-gold);
        }

        .news-item-content {
            flex: 1;
            min-width: 0;
        }

        .news-item-title {
            font-weight: 600;
            font-size: 15px;
            line-height: 1.45;
            margin-bottom: 4px;
            color: var(--text-white);
            transition: color var(--transition-fast);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

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

        .news-item-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--text-muted);
        }

        .news-item-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .news-item-meta i {
            font-size: 11px;
        }

        .news-sidebar {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .news-sidebar-card {
            background: linear-gradient(135deg, rgba(18, 62, 37, 0.9) 0%, rgba(7, 31, 19, 0.9) 100%);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 22px;
        }

        .news-sidebar-card h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .news-sidebar-card h4 i {
            color: var(--accent-gold);
            font-size: 14px;
        }

        .news-sidebar-card p {
            font-size: 13px;
            color: var(--text-soft);
            line-height: 1.65;
        }

        .news-sidebar-card .btn-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 13px;
            color: var(--accent-gold);
            margin-top: 8px;
            transition: all var(--transition-fast);
        }

        .news-sidebar-card .btn-link:hover {
            gap: 10px;
            color: var(--accent-gold-soft);
        }

        .news-empty {
            padding: 24px;
            text-align: center;
            color: var(--text-muted);
            background: rgba(255, 255, 255, 0.03);
            border-radius: var(--radius-md);
            font-size: 15px;
        }

        /* ===== SERVICES ===== */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
        }

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

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

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

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

        .service-card-icon {
            width: 52px;
            height: 52px;
            background: rgba(255, 215, 0, 0.1);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--accent-gold);
            margin-bottom: 16px;
            transition: all var(--transition-base);
        }

        .service-card:hover .service-card-icon {
            background: var(--accent-gold);
            color: var(--bg-dark);
            transform: scale(1.05);
        }

        .service-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 10px;
            line-height: 1.35;
        }

        .service-card p {
            font-size: 14px;
            color: var(--text-soft);
            line-height: 1.65;
        }

        /* ===== MILESTONE ===== */
        .milestone-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }

        .milestone-item {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 22px 24px;
            display: flex;
            flex-direction: column;
            gap: 6px;
            transition: all var(--transition-fast);
        }

        .milestone-item:hover {
            border-color: var(--border-gold);
            background: rgba(255, 255, 255, 0.05);
        }

        .milestone-number {
            font-family: var(--font-display);
            font-size: 32px;
            font-weight: 700;
            color: var(--accent-gold);
            line-height: 1.1;
        }

        .milestone-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-white);
            line-height: 1.4;
        }

        .milestone-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== SELLING POINTS ===== */
        .points-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 20px;
        }

        .point-card {
            background: linear-gradient(135deg, rgba(18, 62, 37, 0.95) 0%, rgba(10, 46, 28, 0.9) 100%);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 26px 24px;
            transition: all var(--transition-base);
            position: relative;
        }

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

        .point-card .icon-wrap {
            width: 48px;
            height: 48px;
            background: var(--accent-gold);
            border-radius: var(--radius-full);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--bg-dark);
            margin-bottom: 16px;
        }

        .point-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 10px;
            line-height: 1.3;
        }

        .point-card p {
            font-size: 14px;
            color: var(--text-soft);
            line-height: 1.65;
        }

        /* ===== FAQ ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 860px;
        }

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

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

        .faq-question {
            width: 100%;
            padding: 18px 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-white);
            text-align: left;
            background: none;
            transition: all var(--transition-fast);
            cursor: pointer;
        }

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

        .faq-question i {
            color: var(--accent-gold);
            font-size: 14px;
            transition: transform var(--transition-fast);
            flex-shrink: 0;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 22px;
            color: var(--text-soft);
            font-size: 14px;
            line-height: 1.7;
        }

        .faq-answer.show {
            max-height: 400px;
            padding: 0 22px 20px;
        }

        /* ===== ABOUT ===== */
        .about-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .about-image {
            border-radius: var(--radius-xl);
            overflow: hidden;
            border: 1px solid var(--border-light);
            position: relative;
        }

        .about-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 320px;
        }

        .about-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(255, 215, 0, 0.15) 0%, transparent 60%);
            pointer-events: none;
        }

        .about-content h2 {
            font-family: var(--font-display);
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .about-content p {
            font-size: 15px;
            color: var(--text-soft);
            line-height: 1.75;
            margin-bottom: 14px;
        }

        .about-content .highlight-text {
            color: var(--accent-gold);
            font-weight: 600;
        }

        .about-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-top: 16px;
        }

        .about-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--text-mint);
            line-height: 1.6;
        }

        .about-list li i {
            color: var(--accent-gold);
            font-size: 14px;
            margin-top: 4px;
        }

        /* ===== CTA SECTION ===== */
        .cta-section {
            padding: 60px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
            opacity: 0.12;
            z-index: 0;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, var(--bg-primary) 0%, rgba(10, 46, 28, 0.7) 50%, var(--bg-primary) 100%);
            z-index: 1;
        }

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

        .cta-card {
            max-width: 720px;
            margin: 0 auto;
            padding: 48px 32px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-gold);
        }

        .cta-card h2 {
            font-family: var(--font-display);
            font-size: clamp(24px, 3.5vw, 32px);
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 14px;
            line-height: 1.3;
        }

        .cta-card p {
            font-size: 15px;
            color: var(--text-soft);
            line-height: 1.7;
            margin-bottom: 24px;
        }

        .cta-card .hero-cta-group {
            justify-content: center;
        }

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

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 32px;
        }

        .footer-brand h3 {
            font-family: var(--font-display);
            font-size: 20px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .footer-brand h3 span {
            color: var(--accent-gold);
        }

        .footer-brand p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 16px;
            text-transform: uppercase;
            letter-spacing: 0.04em;
        }

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

        .footer-col ul li a {
            color: var(--text-muted);
            font-size: 13px;
            transition: all var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

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

        .footer-col ul li a i {
            font-size: 10px;
            color: var(--accent-gold);
        }

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

        .footer-bottom p {
            font-size: 12px;
            color: var(--text-muted);
        }

        .footer-bottom p a {
            color: var(--text-soft);
        }

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

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

        .footer-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-full);
            font-size: 11px;
            font-weight: 600;
            color: var(--text-mint);
        }

        .footer-badge i {
            color: var(--accent-gold);
            font-size: 11px;
        }

        /* ===== FAB ===== */
        .fab {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: var(--radius-full);
            background: linear-gradient(135deg, #1A1A1A 0%, #0D0D0D 100%);
            border: 2px solid var(--accent-gold);
            box-shadow: var(--shadow-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--accent-gold);
            transition: all var(--transition-base);
            opacity: 0.7;
            position: fixed;
            cursor: pointer;
            animation: fabBreath 3s ease-in-out infinite;
        }

        .fab:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: var(--shadow-gold-lg);
        }

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

        .fab .notification-dot {
            position: absolute;
            top: 2px;
            right: 2px;
            width: 12px;
            height: 12px;
            background: #FF1744;
            border-radius: var(--radius-full);
            border: 2px solid #0D0D0D;
            animation: dotBlink 1.5s ease-in-out infinite;
        }

        @keyframes fabBreath {
            0%, 100% {
                transform: translateY(0);
                box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
            }
            50% {
                transform: translateY(-4px);
                box-shadow: 0 8px 30px rgba(255, 215, 0, 0.45);
            }
        }

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

        /* ===== RESPONSIVE ===== */
        @media (max-width: 1024px) {
            .hero-visual {
                grid-template-columns: 1fr;
                gap: 14px;
            }

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

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

            .about-image img {
                min-height: 240px;
            }

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

        @media (max-width: 768px) {
            .site-header {
                height: var(--header-height-mobile);
            }

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

            .main-nav {
                display: none;
            }

            .mobile-toggle {
                display: flex;
            }

            .btn-login-desktop {
                display: none;
            }

            .btn-signup-desktop {
                padding: 8px 16px;
                font-size: 13px;
            }

            .logo-text {
                font-size: 13px;
                max-width: 160px;
            }

            .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 17px;
            }

            .hero h1 {
                font-size: clamp(26px, 7vw, 34px);
            }

            .hero p {
                font-size: 15px;
            }

            .hero-stats {
                gap: 18px;
            }

            .hero-stat-number {
                font-size: 22px;
            }

            .section {
                padding: 40px 0;
            }

            .section-title {
                font-size: clamp(20px, 5vw, 26px);
            }

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

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

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

            .cta-card {
                padding: 28px 18px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

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

            .fab {
                left: 10px;
                bottom: 80px;
                width: 48px;
                height: 48px;
                font-size: 18px;
            }

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

            .hero-cta-group .btn-primary,
            .hero-cta-group .btn-secondary {
                justify-content: center;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .hero {
                padding: calc(var(--header-height-mobile) + 24px) 0 32px;
            }

            .hero h1 {
                font-size: 24px;
            }

            .hero-badge {
                font-size: 11px;
                padding: 5px 12px;
            }

            .hero-stat-number {
                font-size: 18px;
            }

            .hero-stat-label {
                font-size: 11px;
            }

            .milestone-list {
                grid-template-columns: 1fr;
            }

            .news-item {
                flex-direction: column;
                gap: 10px;
                padding: 14px 16px;
            }

            .news-item-title {
                font-size: 14px;
            }

            .section-title {
                font-size: 19px;
            }

            .cta-card h2 {
                font-size: 20px;
            }

            .faq-question {
                font-size: 14px;
                padding: 14px 16px;
            }

            .faq-answer {
                font-size: 13px;
            }

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

            .about-image img {
                min-height: 180px;
            }

            .logo-text {
                font-size: 11px;
                max-width: 120px;
            }
        }

/* roulang page: article */
:root {
            --bg-primary: #0A2E1C;
            --bg-secondary: #123E25;
            --bg-dark: #071F13;
            --bg-card: #0E3522;
            --bg-card-hover: #144229;
            --accent-gold: #FFD700;
            --accent-gold-soft: #F5C84C;
            --accent-red: #D32F2F;
            --accent-red-soft: #EF5350;
            --text-white: #FFFFFF;
            --text-mint: #D1F2EB;
            --text-soft: #B8DCCF;
            --text-muted: #8BB8A6;
            --border-gold: rgba(255, 215, 0, 0.35);
            --border-gold-strong: rgba(255, 215, 0, 0.7);
            --border-light: rgba(209, 242, 235, 0.12);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --radius-full: 9999px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.15);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.25);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.35);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.3);
            --shadow-gold-lg: 0 8px 32px rgba(255, 215, 0, 0.4);
            --font-main: 'Be Vietnam Pro', sans-serif;
            --font-display: 'Playfair Display', serif;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --transition-slow: 0.5s ease;
            --container-max: 1200px;
            --header-height: 76px;
            --header-height-mobile: 64px;
        }

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

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

        body {
            font-family: var(--font-main);
            background-color: var(--bg-primary);
            color: var(--text-white);
            line-height: 1.65;
            font-size: 16px;
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            background-image: radial-gradient(ellipse at top left, rgba(18, 62, 37, 0.8) 0%, transparent 60%),
                radial-gradient(ellipse at bottom right, rgba(7, 31, 19, 0.9) 0%, transparent 55%);
            background-attachment: fixed;
        }

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

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

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

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

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

        ul,
        ol {
            list-style-position: inside;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== HEADER / NAV ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(7, 31, 19, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-light);
            height: var(--header-height);
            transition: background var(--transition-base), box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            background: rgba(7, 31, 19, 0.97);
            box-shadow: var(--shadow-md);
            border-bottom-color: var(--border-gold);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 20px;
        }

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

        .logo-icon {
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--accent-gold) 0%, #C8A415 100%);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--bg-dark);
            box-shadow: var(--shadow-gold);
            transition: transform var(--transition-base);
        }

        .logo:hover .logo-icon {
            transform: scale(1.08) rotate(-5deg);
        }

        .logo-text {
            font-weight: 800;
            font-size: 15px;
            line-height: 1.3;
            color: var(--text-white);
            max-width: 220px;
            letter-spacing: -0.01em;
        }

        .logo-text span {
            color: var(--accent-gold);
        }

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

        .main-nav a {
            color: var(--text-mint);
            font-weight: 500;
            font-size: 14px;
            padding: 8px 16px;
            border-radius: var(--radius-full);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .main-nav a:hover {
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.06);
        }

        .main-nav a.active {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.1);
            font-weight: 600;
        }

        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 16px;
            height: 2px;
            background: var(--accent-gold);
            border-radius: var(--radius-full);
        }

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

        .btn-login-desktop {
            color: var(--text-mint);
            font-weight: 600;
            font-size: 14px;
            padding: 8px 14px;
            border-radius: var(--radius-full);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-login-desktop:hover {
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.08);
        }

        .btn-signup-desktop {
            background: linear-gradient(135deg, var(--accent-gold) 0%, #C8A415 100%);
            color: var(--bg-dark);
            font-weight: 700;
            font-size: 14px;
            padding: 10px 20px;
            border-radius: var(--radius-full);
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .btn-signup-desktop:hover {
            transform: translateY(-1px);
            box-shadow: var(--shadow-gold-lg);
            color: var(--bg-dark);
        }

        .mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            background: rgba(255, 255, 255, 0.04);
            transition: background var(--transition-fast);
        }

        .mobile-toggle:hover {
            background: rgba(255, 255, 255, 0.08);
        }

        .mobile-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-white);
            border-radius: var(--radius-full);
            transition: all var(--transition-base);
        }

        .mobile-toggle[aria-expanded="true"] span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .mobile-toggle[aria-expanded="true"] span:nth-child(2) {
            opacity: 0;
        }

        .mobile-toggle[aria-expanded="true"] span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ===== ARTICLE BANNER ===== */
        .article-banner {
            padding-top: calc(var(--header-height) + 32px);
            padding-bottom: 28px;
            background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-primary) 100%);
            border-bottom: 1px solid var(--border-light);
        }

        .article-banner-inner {
            display: flex;
            flex-wrap: wrap;
            align-items: flex-start;
            gap: 28px;
        }

        .article-banner-content {
            flex: 1 1 600px;
            min-width: 0;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 14px;
            flex-wrap: wrap;
        }

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

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

        .breadcrumb .separator {
            color: var(--text-muted);
            font-size: 11px;
        }

        .breadcrumb .current {
            color: var(--accent-gold-soft);
            font-weight: 500;
        }

        .article-banner .article-category-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 215, 0, 0.12);
            color: var(--accent-gold);
            font-size: 12px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: var(--radius-full);
            border: 1px solid var(--border-gold);
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

        .article-banner h1 {
            font-family: var(--font-display);
            font-size: clamp(26px, 3.8vw, 40px);
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-white);
            margin-bottom: 16px;
        }

        .article-banner .article-excerpt {
            font-size: 17px;
            line-height: 1.7;
            color: var(--text-soft);
            max-width: 720px;
            margin-bottom: 18px;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 18px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .article-meta i {
            color: var(--accent-gold);
            font-size: 13px;
        }

        .article-banner-visual {
            flex: 0 0 280px;
            max-width: 280px;
        }

        .article-banner-visual .cover-wrap {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 2px solid var(--border-gold);
            box-shadow: var(--shadow-gold);
            position: relative;
        }

        .article-banner-visual .cover-wrap::after {
            content: '';
            position: absolute;
            inset: 0;
            border-radius: inherit;
            background: linear-gradient(180deg, transparent 55%, rgba(7, 31, 19, 0.7) 100%);
            pointer-events: none;
        }

        .article-banner-visual img {
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
        }

        /* ===== ARTICLE LAYOUT ===== */
        .article-main {
            padding: 40px 0 64px;
        }

        .article-layout {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 300px;
            gap: 36px;
            align-items: start;
        }

        .article-body {
            max-width: 720px;
            min-width: 0;
        }

        .article-content {
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-mint);
        }

        .article-content h2 {
            font-family: var(--font-display);
            font-size: 24px;
            font-weight: 700;
            color: var(--text-white);
            margin: 32px 0 14px;
            line-height: 1.35;
        }

        .article-content h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--accent-gold-soft);
            margin: 24px 0 10px;
            line-height: 1.4;
        }

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

        .article-content ul,
        .article-content ol {
            margin-bottom: 18px;
            padding-left: 22px;
        }

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

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

        .article-content blockquote {
            border-left: 3px solid var(--accent-gold);
            background: rgba(255, 215, 0, 0.06);
            padding: 16px 20px;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            margin: 20px 0;
            font-style: italic;
            color: var(--text-soft);
        }

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 20px 0;
            font-size: 14px;
        }

        .article-content table th,
        .article-content table td {
            padding: 10px 14px;
            border: 1px solid var(--border-light);
            text-align: left;
        }

        .article-content table th {
            background: var(--bg-card);
            color: var(--accent-gold);
            font-weight: 600;
        }

        .article-content a {
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        /* ===== NOT FOUND ===== */
        .article-not-found {
            text-align: center;
            padding: 60px 0 80px;
        }

        .article-not-found .icon-wrap {
            width: 80px;
            height: 80px;
            margin: 0 auto 20px;
            background: var(--bg-card);
            border-radius: var(--radius-full);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 32px;
            color: var(--accent-gold);
            border: 1px solid var(--border-gold);
        }

        .article-not-found h2 {
            font-family: var(--font-display);
            font-size: 28px;
            color: var(--text-white);
            margin-bottom: 10px;
        }

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

        .btn-back-home {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--accent-gold) 0%, #C8A415 100%);
            color: var(--bg-dark);
            font-weight: 700;
            font-size: 15px;
            padding: 12px 28px;
            border-radius: var(--radius-full);
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-base);
        }

        .btn-back-home:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-gold-lg);
            color: var(--bg-dark);
        }

        /* ===== SIDEBAR ===== */
        .article-sidebar {
            position: sticky;
            top: calc(var(--header-height) + 20px);
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .sidebar-box {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 22px;
        }

        .sidebar-box h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sidebar-box h3 i {
            font-size: 14px;
        }

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

        .sidebar-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 10px 0;
            border-bottom: 1px solid var(--border-light);
            font-size: 14px;
            color: var(--text-soft);
        }

        .sidebar-list li:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .sidebar-list li:first-child {
            padding-top: 0;
        }

        .sidebar-list li i {
            color: var(--accent-gold);
            font-size: 12px;
            margin-top: 5px;
            flex-shrink: 0;
        }

        .sidebar-cta {
            background: linear-gradient(135deg, var(--bg-card-hover) 0%, var(--bg-card) 100%);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 22px;
            text-align: left;
        }

        .sidebar-cta h3 {
            font-family: var(--font-display);
            font-size: 19px;
            color: var(--text-white);
            margin-bottom: 10px;
        }

        .sidebar-cta p {
            font-size: 14px;
            color: var(--text-soft);
            margin-bottom: 16px;
        }

        .btn-sidebar {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--accent-gold) 0%, #C8A415 100%);
            color: var(--bg-dark);
            font-weight: 700;
            font-size: 14px;
            padding: 11px 22px;
            border-radius: var(--radius-full);
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-base);
            width: 100%;
        }

        .btn-sidebar:hover {
            transform: translateY(-1px);
            box-shadow: var(--shadow-gold-lg);
            color: var(--bg-dark);
        }

        /* ===== CTA SECTION ===== */
        .article-cta {
            padding: 56px 0;
            background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-secondary) 60%, var(--bg-primary) 100%);
            border-top: 1px solid var(--border-gold);
            border-bottom: 1px solid var(--border-gold);
        }

        .article-cta-inner {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }

        .article-cta-text h2 {
            font-family: var(--font-display);
            font-size: clamp(22px, 3vw, 30px);
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 8px;
        }

        .article-cta-text p {
            font-size: 15px;
            color: var(--text-soft);
            max-width: 520px;
        }

        .btn-cta-gold {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: linear-gradient(135deg, var(--accent-gold) 0%, #C8A415 100%);
            color: var(--bg-dark);
            font-weight: 700;
            font-size: 15px;
            padding: 14px 30px;
            border-radius: var(--radius-full);
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .btn-cta-gold:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-gold-lg);
            color: var(--bg-dark);
        }

        /* ===== FOOTER ===== */
        .site-footer {
            background: var(--bg-dark);
            border-top: 1px solid var(--border-light);
            padding: 48px 0 28px;
            margin-top: 0;
        }

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

        .footer-brand h3 {
            font-size: 19px;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 12px;
        }

        .footer-brand h3 span {
            color: var(--accent-gold);
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 360px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 14px;
        }

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

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            color: var(--text-soft);
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: color var(--transition-fast);
        }

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

        .footer-col ul li a i {
            font-size: 10px;
            color: var(--accent-gold);
        }

        .footer-bottom {
            border-top: 1px solid var(--border-light);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
        }

        .footer-bottom p {
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-bottom p a {
            color: var(--accent-gold-soft);
        }

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

        .footer-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            color: var(--text-soft);
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            padding: 6px 12px;
            border-radius: var(--radius-full);
        }

        .footer-badge i {
            color: var(--accent-gold);
            font-size: 11px;
        }

        /* ===== FAB ===== */
        .fab-support {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--bg-dark);
            border: 2px solid var(--accent-gold);
            box-shadow: var(--shadow-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 19px;
            color: var(--accent-gold);
            opacity: 0.7;
            transition: all var(--transition-base);
            animation: fabBreathing 3s ease-in-out infinite;
        }

        .fab-support:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: var(--shadow-gold-lg);
        }

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

        .fab-support .notification-dot {
            position: absolute;
            top: -3px;
            right: -3px;
            width: 12px;
            height: 12px;
            background: var(--accent-red-soft);
            border-radius: 50%;
            border: 2px solid var(--bg-dark);
            animation: dotBlink 2s ease-in-out infinite;
        }

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

        @keyframes dotBlink {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.4;
                transform: scale(0.8);
            }
        }

        /* ===== RESPONSIVE ===== */
        @media screen and (max-width: 1024px) {
            .main-nav {
                gap: 2px;
            }

            .main-nav a {
                font-size: 13px;
                padding: 7px 12px;
            }

            .article-layout {
                grid-template-columns: minmax(0, 1fr);
                gap: 28px;
            }

            .article-sidebar {
                position: static;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }

            .article-body {
                max-width: 100%;
            }
        }

        @media screen and (max-width: 768px) {
            :root {
                --header-height: 64px;
            }

            .container {
                padding: 0 16px;
            }

            .main-nav {
                display: none;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                flex-direction: column;
                background: var(--bg-dark);
                border-bottom: 1px solid var(--border-gold);
                padding: 16px 20px 20px;
                gap: 6px;
                box-shadow: var(--shadow-lg);
            }

            .main-nav.open {
                display: flex;
            }

            .main-nav a {
                width: 100%;
                padding: 12px 16px;
                font-size: 15px;
                text-align: left;
                border-radius: var(--radius-md);
            }

            .main-nav a.active::after {
                display: none;
            }

            .btn-login-desktop,
            .btn-signup-desktop {
                font-size: 12px;
                padding: 8px 12px;
            }

            .mobile-toggle {
                display: flex;
            }

            .header-actions {
                gap: 6px;
            }

            .logo-text {
                font-size: 13px;
                max-width: 170px;
            }

            .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 17px;
            }

            .article-banner {
                padding-top: calc(var(--header-height-mobile) + 22px);
                padding-bottom: 20px;
            }

            .article-banner-visual {
                flex: 1 1 100%;
                max-width: 100%;
            }

            .article-banner-visual .cover-wrap {
                border-radius: var(--radius-md);
            }

            .article-main {
                padding: 28px 0 44px;
            }

            .article-sidebar {
                grid-template-columns: 1fr;
            }

            .article-content h2 {
                font-size: 21px;
            }

            .article-content h3 {
                font-size: 17px;
            }

            .article-meta {
                gap: 10px;
                font-size: 12px;
            }

            .article-cta-inner {
                flex-direction: column;
                align-items: flex-start;
            }

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

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

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

            .footer-badges {
                justify-content: center;
            }

            .fab-support {
                left: 12px;
                bottom: 80px;
                width: 44px;
                height: 44px;
                font-size: 17px;
            }
        }

        @media screen and (max-width: 520px) {
            .btn-login-desktop {
                display: none;
            }

            .article-banner h1 {
                font-size: 24px;
            }

            .article-banner .article-excerpt {
                font-size: 15px;
            }

            .article-content {
                font-size: 15px;
            }

            .article-content h2 {
                font-size: 19px;
            }

            .sidebar-box,
            .sidebar-cta {
                padding: 18px;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #0A2E1C;
            --bg-secondary: #123E25;
            --bg-dark: #071F13;
            --bg-card: #0E3522;
            --bg-card-hover: #144229;
            --accent-gold: #FFD700;
            --accent-gold-soft: #F5C84C;
            --accent-red: #D32F2F;
            --accent-red-soft: #EF5350;
            --text-white: #FFFFFF;
            --text-mint: #D1F2EB;
            --text-soft: #B8DCCF;
            --text-muted: #8BB8A6;
            --border-gold: rgba(255, 215, 0, 0.35);
            --border-gold-strong: rgba(255, 215, 0, 0.7);
            --border-light: rgba(209, 242, 235, 0.12);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --radius-full: 9999px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.15);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.25);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.35);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.3);
            --shadow-gold-lg: 0 8px 32px rgba(255, 215, 0, 0.4);
            --font-main: 'Be Vietnam Pro', sans-serif;
            --font-display: 'Playfair Display', serif;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --transition-slow: 0.5s ease;
            --container-max: 1200px;
            --header-height: 76px;
            --header-height-mobile: 64px;
        }

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

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

        body {
            font-family: var(--font-main);
            background-color: var(--bg-primary);
            color: var(--text-white);
            line-height: 1.65;
            font-size: 16px;
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            background-image: radial-gradient(ellipse at top left, rgba(18, 62, 37, 0.8) 0%, transparent 60%),
                radial-gradient(ellipse at bottom right, rgba(7, 31, 19, 0.9) 0%, transparent 55%);
            background-attachment: fixed;
        }

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

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

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

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

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

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== HEADER / NAV ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(7, 31, 19, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-light);
            height: var(--header-height);
            transition: background var(--transition-base), box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            background: rgba(7, 31, 19, 0.97);
            box-shadow: var(--shadow-md);
            border-bottom-color: var(--border-gold);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 20px;
        }

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

        .logo-icon {
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--accent-gold) 0%, #C8A415 100%);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--bg-dark);
            box-shadow: var(--shadow-gold);
            transition: transform var(--transition-base);
        }

        .logo:hover .logo-icon {
            transform: scale(1.08) rotate(-5deg);
        }

        .logo-text {
            font-weight: 800;
            font-size: 15px;
            line-height: 1.3;
            color: var(--text-white);
            max-width: 220px;
            letter-spacing: -0.01em;
        }

        .logo-text span {
            color: var(--accent-gold);
        }

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

        .main-nav a {
            color: var(--text-mint);
            font-weight: 500;
            font-size: 14px;
            padding: 8px 16px;
            border-radius: var(--radius-full);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .main-nav a:hover {
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.06);
        }

        .main-nav a.active {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.1);
            font-weight: 600;
        }

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

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

        .btn-login-desktop {
            color: var(--text-mint);
            font-weight: 600;
            font-size: 14px;
            padding: 10px 18px;
            border-radius: var(--radius-full);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

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

        .btn-signup-desktop {
            color: var(--bg-dark);
            font-weight: 700;
            font-size: 14px;
            padding: 10px 22px;
            border-radius: var(--radius-full);
            background: linear-gradient(135deg, var(--accent-gold) 0%, #C8A415 100%);
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .btn-signup-desktop:hover {
            color: var(--bg-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow-gold-lg);
        }

        .mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }

        .mobile-toggle:hover {
            background: rgba(255, 255, 255, 0.06);
        }

        .mobile-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-white);
            border-radius: 2px;
            transition: all var(--transition-base);
        }

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

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

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

        /* ===== HERO ===== */
        .hero-category {
            padding: calc(var(--header-height) + 60px) 0 60px;
            position: relative;
            background: linear-gradient(180deg, rgba(7, 31, 19, 0.2) 0%, rgba(10, 46, 28, 0.9) 100%);
        }

        .hero-category::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
            opacity: 0.12;
            z-index: 0;
            pointer-events: none;
        }

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

        .hero-category-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .hero-category-content {
            text-align: left;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 215, 0, 0.12);
            border: 1px solid var(--border-gold);
            color: var(--accent-gold);
            font-weight: 600;
            font-size: 13px;
            padding: 8px 16px;
            border-radius: var(--radius-full);
            margin-bottom: 20px;
            letter-spacing: 0.02em;
        }

        .hero-badge i {
            font-size: 13px;
        }

        .hero-category-content h1 {
            font-family: var(--font-display);
            font-size: 42px;
            font-weight: 700;
            line-height: 1.2;
            color: var(--text-white);
            margin-bottom: 18px;
            letter-spacing: -0.01em;
        }

        .hero-category-content h1 span {
            color: var(--accent-gold);
        }

        .hero-category-desc {
            font-size: 17px;
            line-height: 1.7;
            color: var(--text-mint);
            margin-bottom: 28px;
            max-width: 540px;
        }

        .hero-invite-panel {
            background: linear-gradient(145deg, rgba(14, 53, 34, 0.95) 0%, rgba(10, 46, 28, 0.9) 100%);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 28px 30px;
            box-shadow: var(--shadow-md);
            max-width: 520px;
            text-align: left;
        }

        .hero-invite-panel h2 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .hero-invite-panel h2 i {
            color: var(--accent-gold);
        }

        .hero-invite-panel p {
            font-size: 14px;
            color: var(--text-soft);
            margin-bottom: 18px;
        }

        .invite-progress-wrap {
            margin-bottom: 18px;
        }

        .invite-progress-info {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: var(--text-mint);
            margin-bottom: 8px;
        }

        .invite-progress-info strong {
            color: var(--accent-gold);
            font-weight: 700;
        }

        .invite-progress-bar {
            width: 100%;
            height: 8px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-full);
            overflow: hidden;
        }

        .invite-progress-fill {
            height: 100%;
            background: linear-gradient(90deg, var(--accent-gold) 0%, #F5A623 50%, #FFD700 100%);
            border-radius: var(--radius-full);
            width: 68%;
            transition: width var(--transition-slow);
            box-shadow: 0 0 12px rgba(255, 215, 0, 0.4);
        }

        .btn-invite-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            width: 100%;
            background: linear-gradient(135deg, var(--accent-red) 0%, #B71C1C 100%);
            color: var(--text-white);
            font-weight: 700;
            font-size: 16px;
            padding: 14px 24px;
            border-radius: var(--radius-md);
            box-shadow: 0 6px 20px rgba(211, 47, 47, 0.35);
            transition: all var(--transition-base);
        }

        .btn-invite-primary:hover {
            color: var(--text-white);
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(211, 47, 47, 0.45);
        }

        .btn-invite-primary i {
            font-size: 16px;
        }

        .hero-side-image {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-gold);
        }

        .hero-side-image img {
            width: 100%;
            height: 420px;
            object-fit: cover;
        }

        .hero-side-image::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 50%;
            background: linear-gradient(0deg, rgba(7, 31, 19, 0.7) 0%, transparent 100%);
        }

        .hero-side-overlay {
            position: absolute;
            bottom: 20px;
            left: 20px;
            right: 20px;
            z-index: 1;
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .hero-side-stat {
            background: rgba(7, 31, 19, 0.85);
            backdrop-filter: blur(8px);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            padding: 12px 16px;
            flex: 1;
            text-align: center;
        }

        .hero-side-stat strong {
            display: block;
            font-size: 20px;
            font-weight: 700;
            color: var(--accent-gold);
        }

        .hero-side-stat span {
            font-size: 12px;
            color: var(--text-mint);
        }

        /* ===== SECTION SHARED ===== */
        .section {
            padding: 70px 0;
            position: relative;
        }

        .section-alt {
            background: rgba(7, 31, 19, 0.5);
        }

        .section-heading {
            max-width: 680px;
            margin-bottom: 44px;
            text-align: left;
        }

        .section-heading .label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--accent-gold);
            margin-bottom: 10px;
        }

        .section-heading h2 {
            font-family: var(--font-display);
            font-size: 32px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-white);
            margin-bottom: 14px;
        }

        .section-heading p {
            font-size: 16px;
            color: var(--text-soft);
            line-height: 1.7;
        }

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

        .benefit-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            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) 0%, transparent 100%);
            opacity: 0;
            transition: opacity var(--transition-base);
        }

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

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

        .benefit-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            background: rgba(255, 215, 0, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--accent-gold);
            margin-bottom: 18px;
            border: 1px solid var(--border-gold);
        }

        .benefit-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 10px;
        }

        .benefit-card p {
            font-size: 14px;
            color: var(--text-soft);
            line-height: 1.7;
        }

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

        .process-step {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            transition: all var(--transition-base);
            text-align: left;
        }

        .process-step:hover {
            border-color: var(--border-gold);
            background: var(--bg-card-hover);
            box-shadow: var(--shadow-md);
        }

        .step-number {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 14px;
        }

        .step-number span {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-full);
            background: linear-gradient(135deg, var(--accent-gold) 0%, #C8A415 100%);
            color: var(--bg-dark);
            font-weight: 800;
            font-size: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow-gold);
        }

        .step-number strong {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-white);
        }

        .process-step p {
            font-size: 14px;
            color: var(--text-soft);
            line-height: 1.7;
        }

        /* ===== SCENARIO / DEMO ===== */
        .scenario-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .scenario-visual {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-gold);
        }

        .scenario-visual img {
            width: 100%;
            height: 360px;
            object-fit: cover;
        }

        .scenario-content {
            text-align: left;
        }

        .scenario-content h3 {
            font-family: var(--font-display);
            font-size: 26px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 16px;
        }

        .scenario-content p {
            font-size: 15px;
            color: var(--text-soft);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .scenario-points {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .scenario-points li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--text-mint);
            margin-bottom: 12px;
            line-height: 1.6;
        }

        .scenario-points li i {
            color: var(--accent-gold);
            font-size: 16px;
            margin-top: 2px;
            flex-shrink: 0;
        }

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

        .stat-box {
            background: var(--bg-card);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 24px;
            text-align: center;
            transition: all var(--transition-base);
        }

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

        .stat-box strong {
            display: block;
            font-size: 32px;
            font-weight: 800;
            color: var(--accent-gold);
            margin-bottom: 6px;
            font-family: var(--font-display);
        }

        .stat-box span {
            font-size: 13px;
            color: var(--text-mint);
            font-weight: 500;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            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: 18px 22px;
            cursor: pointer;
            font-weight: 600;
            font-size: 15px;
            color: var(--text-white);
            transition: color var(--transition-fast);
            text-align: left;
            width: 100%;
        }

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

        .faq-question i {
            font-size: 14px;
            color: var(--accent-gold);
            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);
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
        }

        .faq-answer-inner {
            padding: 0 22px 20px;
            font-size: 14px;
            color: var(--text-soft);
            line-height: 1.7;
            border-top: 1px solid var(--border-light);
            padding-top: 16px;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 70px 0;
            position: relative;
        }

        .cta-box {
            background: linear-gradient(145deg, rgba(14, 53, 34, 0.95) 0%, rgba(7, 31, 19, 0.9) 100%);
            border: 1px solid var(--border-gold-strong);
            border-radius: var(--radius-xl);
            padding: 50px 40px;
            text-align: center;
            box-shadow: var(--shadow-gold);
        }

        .cta-box h2 {
            font-family: var(--font-display);
            font-size: 30px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 14px;
        }

        .cta-box p {
            font-size: 16px;
            color: var(--text-soft);
            max-width: 560px;
            margin: 0 auto 24px;
            line-height: 1.7;
        }

        .btn-cta-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: linear-gradient(135deg, var(--accent-gold) 0%, #C8A415 100%);
            color: var(--bg-dark);
            font-weight: 700;
            font-size: 16px;
            padding: 15px 32px;
            border-radius: var(--radius-full);
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-base);
            border: none;
        }

        .btn-cta-primary:hover {
            color: var(--bg-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow-gold-lg);
        }

        /* ===== FAB ===== */
        .fab-left {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(145deg, #1A1A1A 0%, #0A0A0A 100%);
            border: 3px solid var(--accent-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--accent-gold);
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-base);
            opacity: 0.7;
            cursor: pointer;
            text-decoration: none;
        }

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

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

        .fab-left .notification-dot {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            background: var(--accent-red);
            border-radius: 50%;
            border: 2px solid var(--bg-dark);
            animation: blink 1.5s infinite;
        }

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

        /* ===== FOOTER ===== */
        .site-footer {
            background: var(--bg-dark);
            border-top: 1px solid var(--border-light);
            padding: 50px 0 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }

        .footer-brand h3 {
            font-family: var(--font-display);
            font-size: 22px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 12px;
        }

        .footer-brand h3 span {
            color: var(--accent-gold);
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 420px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

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

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

        .footer-col ul li a {
            color: var(--text-muted);
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all var(--transition-fast);
        }

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

        .footer-col ul li a i {
            font-size: 10px;
            color: var(--accent-gold);
        }

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

        .footer-bottom p {
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-bottom p a {
            color: var(--accent-gold);
            font-weight: 600;
        }

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

        .footer-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            color: var(--text-mint);
            background: rgba(255, 255, 255, 0.05);
            padding: 6px 12px;
            border-radius: var(--radius-full);
            border: 1px solid var(--border-light);
            transition: all var(--transition-fast);
        }

        .footer-badge:hover {
            border-color: var(--border-gold);
            color: var(--accent-gold);
        }

        .footer-badge i {
            font-size: 12px;
            color: var(--accent-gold);
        }

        /* ===== RESPONSIVE ===== */
        @media (max-width: 1024px) {
            .hero-category-grid {
                gap: 30px;
            }
            .hero-category-content h1 {
                font-size: 34px;
            }
            .benefits-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .scenario-wrap {
                gap: 30px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 64px;
            }
            .container {
                padding: 0 16px;
            }
            .main-nav {
                display: none;
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(7, 31, 19, 0.98);
                flex-direction: column;
                padding: 20px 24px;
                gap: 12px;
                border-bottom: 1px solid var(--border-gold);
                z-index: 99;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                width: 100%;
                text-align: left;
                padding: 12px 16px;
                font-size: 15px;
            }
            .header-actions {
                gap: 6px;
            }
            .btn-login-desktop {
                padding: 8px 12px;
                font-size: 13px;
            }
            .btn-signup-desktop {
                padding: 8px 14px;
                font-size: 13px;
            }
            .mobile-toggle {
                display: flex;
            }
            .hero-category {
                padding-top: calc(var(--header-height) + 40px);
                padding-bottom: 40px;
            }
            .hero-category-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .hero-category-content h1 {
                font-size: 28px;
            }
            .hero-invite-panel {
                padding: 20px;
            }
            .section {
                padding: 50px 0;
            }
            .section-heading h2 {
                font-size: 26px;
            }
            .benefits-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .process-steps {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-box strong {
                font-size: 24px;
            }
            .scenario-wrap {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .scenario-visual img {
                height: 240px;
            }
            .cta-box {
                padding: 32px 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 12px;
            }
            .fab-left {
                width: 48px;
                height: 48px;
                font-size: 18px;
                left: 12px;
                bottom: 80px;
            }
        }

        @media (max-width: 520px) {
            .logo-text {
                font-size: 13px;
                max-width: 160px;
            }
            .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 17px;
            }
            .btn-login-desktop {
                font-size: 12px;
                padding: 7px 10px;
            }
            .btn-signup-desktop {
                font-size: 12px;
                padding: 7px 12px;
            }
            .hero-category-content h1 {
                font-size: 24px;
            }
            .hero-invite-panel h2 {
                font-size: 17px;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .section-heading h2 {
                font-size: 22px;
            }
            .cta-box h2 {
                font-size: 24px;
            }
            .footer-badge {
                font-size: 11px;
                padding: 5px 10px;
            }
        }

/* roulang page: category2 */
/* ===== roulang page: category2 ===== */
        :root {
            --bg-primary: #0A2E1C;
            --bg-secondary: #123E25;
            --bg-dark: #071F13;
            --bg-card: #0E3522;
            --bg-card-hover: #144229;
            --accent-gold: #FFD700;
            --accent-gold-soft: #F5C84C;
            --accent-red: #D32F2F;
            --accent-red-soft: #EF5350;
            --text-white: #FFFFFF;
            --text-mint: #D1F2EB;
            --text-soft: #B8DCCF;
            --text-muted: #8BB8A6;
            --border-gold: rgba(255, 215, 0, 0.35);
            --border-gold-strong: rgba(255, 215, 0, 0.7);
            --border-light: rgba(209, 242, 235, 0.12);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --radius-full: 9999px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.15);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.25);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.35);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.3);
            --shadow-gold-lg: 0 8px 32px rgba(255, 215, 0, 0.4);
            --font-main: 'Be Vietnam Pro', sans-serif;
            --font-display: 'Playfair Display', serif;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --transition-slow: 0.5s ease;
            --container-max: 1200px;
            --header-height: 76px;
            --header-height-mobile: 64px;
        }
        
        /* ===== RESET & BASE ===== */
        *,
        *::before,
        *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-main);
            background-color: var(--bg-primary);
            color: var(--text-white);
            line-height: 1.65;
            font-size: 16px;
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            background-image: radial-gradient(ellipse at top left, rgba(18, 62, 37, 0.8) 0%, transparent 60%),
                radial-gradient(ellipse at bottom right, rgba(7, 31, 19, 0.9) 0%, transparent 55%);
            background-attachment: fixed;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--accent-gold);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--accent-gold-soft);
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        ul, ol {
            list-style: none;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        
        /* ===== HEADER / NAV ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(7, 31, 19, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-light);
            height: var(--header-height);
            transition: background var(--transition-base), box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            background: rgba(7, 31, 19, 0.97);
            box-shadow: var(--shadow-md);
            border-bottom-color: var(--border-gold);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 20px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--accent-gold) 0%, #C8A415 100%);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--bg-dark);
            box-shadow: var(--shadow-gold);
            transition: transform var(--transition-base);
        }
        .logo:hover .logo-icon {
            transform: scale(1.08) rotate(-5deg);
        }
        .logo-text {
            font-weight: 800;
            font-size: 15px;
            line-height: 1.3;
            color: var(--text-white);
            max-width: 220px;
            letter-spacing: -0.01em;
        }
        .logo-text span {
            color: var(--accent-gold);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            justify-content: center;
        }
        .main-nav a {
            color: var(--text-mint);
            font-weight: 500;
            font-size: 14px;
            padding: 8px 16px;
            border-radius: var(--radius-full);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        .main-nav a:hover {
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.06);
        }
        .main-nav a.active {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.1);
            font-weight: 600;
        }
        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--accent-gold);
            border-radius: 1px;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .btn-login-desktop,
        .btn-signup-desktop {
            padding: 9px 18px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 13px;
            white-space: nowrap;
            transition: all var(--transition-fast);
        }
        .btn-login-desktop {
            color: var(--text-mint);
            border: 1px solid var(--border-light);
        }
        .btn-login-desktop:hover {
            color: var(--text-white);
            border-color: rgba(255, 255, 255, 0.3);
            background: rgba(255, 255, 255, 0.05);
        }
        .btn-signup-desktop {
            background: linear-gradient(135deg, var(--accent-gold) 0%, #C8A415 100%);
            color: var(--bg-dark);
            box-shadow: var(--shadow-gold);
        }
        .btn-signup-desktop:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-gold-lg);
            color: var(--bg-dark);
        }
        .mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            background: rgba(255, 255, 255, 0.04);
            transition: all var(--transition-fast);
        }
        .mobile-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text-white);
            border-radius: 1px;
            transition: all var(--transition-base);
        }
        .mobile-toggle:hover {
            background: rgba(255, 255, 255, 0.08);
        }
        .mobile-toggle[aria-expanded="true"] span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .mobile-toggle[aria-expanded="true"] span:nth-child(2) {
            opacity: 0;
        }
        .mobile-toggle[aria-expanded="true"] span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        
        /* ===== FAB ===== */
        .fab-support {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: radial-gradient(circle at 30% 25%, #2A2A2A 0%, #0B0B0B 70%);
            border: 2px solid var(--accent-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-gold);
            font-size: 22px;
            box-shadow: var(--shadow-gold), inset 0 1px 0 rgba(255, 255, 255, 0.15);
            opacity: 0.7;
            animation: fabFloat 3s ease-in-out infinite;
            transition: all var(--transition-base);
            text-decoration: none;
        }
        .fab-support:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: var(--shadow-gold-lg), inset 0 1px 0 rgba(255, 255, 255, 0.2);
            color: var(--accent-gold);
        }
        .fab-support:active {
            transform: scale(0.95) translateY(2px);
        }
        .fab-support .fab-dot {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            background: #FF1744;
            border-radius: 50%;
            border: 2px solid var(--bg-dark);
            animation: fabBlink 1.5s ease-in-out infinite;
        }
        @keyframes fabFloat {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-8px); }
        }
        @keyframes fabBlink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }
        
        /* ===== PAGE BANNER / HERO ===== */
        .page-hero {
            position: relative;
            min-height: 520px;
            display: flex;
            align-items: center;
            padding: calc(var(--header-height) + 40px) 0 60px;
            background: linear-gradient(180deg, rgba(7, 31, 19, 0.4) 0%, rgba(10, 46, 28, 0.85) 100%),
                url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
            background-attachment: fixed;
            border-bottom: 1px solid var(--border-gold);
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(ellipse at 70% 50%, rgba(255, 215, 0, 0.12) 0%, transparent 55%);
            pointer-events: none;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 120px;
            background: linear-gradient(180deg, transparent 0%, var(--bg-primary) 100%);
            pointer-events: none;
        }
        .page-hero-content {
            position: relative;
            z-index: 2;
            max-width: 620px;
        }
        .page-hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(211, 47, 47, 0.8);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: var(--radius-full);
            margin-bottom: 18px;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }
        .page-hero h1 {
            font-family: var(--font-display);
            font-size: clamp(32px, 4.5vw, 48px);
            font-weight: 700;
            line-height: 1.2;
            color: var(--text-white);
            margin-bottom: 18px;
            letter-spacing: -0.01em;
        }
        .page-hero h1 .highlight {
            color: var(--accent-gold);
            position: relative;
        }
        .page-hero h1 .highlight::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--accent-gold);
            border-radius: 2px;
            opacity: 0.6;
        }
        .page-hero p {
            font-size: 16px;
            color: var(--text-mint);
            line-height: 1.7;
            margin-bottom: 28px;
            max-width: 520px;
        }
        .page-hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
        }
        .btn-primary-hero {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--accent-gold) 0%, #C8A415 100%);
            color: var(--bg-dark);
            font-weight: 700;
            font-size: 15px;
            padding: 14px 28px;
            border-radius: var(--radius-full);
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-fast);
            text-decoration: none;
        }
        .btn-primary-hero:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-gold-lg);
            color: var(--bg-dark);
        }
        .btn-ghost-hero {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--text-white);
            font-weight: 500;
            font-size: 15px;
            padding: 14px 24px;
            border-radius: var(--radius-full);
            border: 1px solid var(--border-gold-strong);
            transition: all var(--transition-fast);
            text-decoration: none;
            background: rgba(255, 255, 255, 0.04);
        }
        .btn-ghost-hero:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: var(--accent-gold);
            color: var(--accent-gold);
        }
        
        /* ===== SECTION COMMON ===== */
        .section {
            padding: 70px 0;
            position: relative;
        }
        .section-dark {
            background: rgba(7, 31, 19, 0.6);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }
        .section-header {
            max-width: 680px;
            margin-bottom: 40px;
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--accent-gold);
            font-weight: 600;
            font-size: 13px;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            margin-bottom: 12px;
        }
        .section-label::before {
            content: '';
            width: 30px;
            height: 2px;
            background: var(--accent-gold);
            border-radius: 1px;
        }
        .section-title {
            font-family: var(--font-display);
            font-size: clamp(26px, 3.5vw, 36px);
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-white);
            margin-bottom: 14px;
        }
        .section-desc {
            font-size: 15px;
            color: var(--text-soft);
            line-height: 1.7;
        }
        
        /* ===== STRATEGY CARDS / FEATURES ===== */
        .strategy-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 10px;
        }
        .strategy-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 28px;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }
        .strategy-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-gold), transparent);
            opacity: 0;
            transition: opacity var(--transition-base);
        }
        .strategy-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-gold);
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .strategy-card:hover::before {
            opacity: 1;
        }
        .strategy-card-icon {
            width: 52px;
            height: 52px;
            background: linear-gradient(135deg, rgba(255, 215, 0, 0.2) 0%, rgba(255, 215, 0, 0.05) 100%);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--accent-gold);
            margin-bottom: 18px;
            transition: transform var(--transition-base);
        }
        .strategy-card:hover .strategy-card-icon {
            transform: scale(1.1) rotate(5deg);
        }
        .strategy-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .strategy-card p {
            font-size: 14px;
            color: var(--text-soft);
            line-height: 1.7;
            margin-bottom: 14px;
        }
        .strategy-card-tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.1);
            padding: 4px 10px;
            border-radius: var(--radius-full);
        }
        
        /* ===== STEPS / PROCESS ===== */
        .process-list {
            display: flex;
            flex-direction: column;
            gap: 18px;
            max-width: 780px;
        }
        .process-item {
            display: flex;
            gap: 18px;
            align-items: flex-start;
            background: rgba(14, 53, 34, 0.55);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            transition: all var(--transition-base);
        }
        .process-item:hover {
            border-color: var(--border-gold);
            background: rgba(14, 53, 34, 0.8);
        }
        .process-number {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            background: linear-gradient(135deg, var(--accent-gold) 0%, #C8A415 100%);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 18px;
            color: var(--bg-dark);
            box-shadow: var(--shadow-gold);
        }
        .process-item h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 4px;
        }
        .process-item p {
            font-size: 14px;
            color: var(--text-soft);
            line-height: 1.6;
        }
        
        /* ===== FORM / LEAD GEN ===== */
        .lead-gen-panel {
            background: var(--bg-card);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-xl);
            padding: 36px;
            max-width: 680px;
            margin: 0 auto;
            box-shadow: var(--shadow-lg);
        }
        .lead-gen-panel h3 {
            font-family: var(--font-display);
            font-size: 24px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 10px;
        }
        .lead-gen-panel > p {
            font-size: 14px;
            color: var(--text-soft);
            line-height: 1.6;
            margin-bottom: 24px;
        }
        .lead-form {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .lead-form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
        }
        .lead-form-group {
            display: flex;
            flex-direction: column;
            gap: 5px;
        }
        .lead-form-group label {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-mint);
        }
        .lead-form-group input,
        .lead-form-group select {
            background: rgba(7, 31, 19, 0.7);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            padding: 12px 14px;
            font-size: 14px;
            color: var(--text-white);
            transition: all var(--transition-fast);
            outline: none;
            width: 100%;
        }
        .lead-form-group input::placeholder {
            color: var(--text-muted);
        }
        .lead-form-group input:focus,
        .lead-form-group select:focus {
            border-color: var(--accent-gold);
            box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.15);
            background: rgba(7, 31, 19, 0.9);
        }
        .lead-form-group select {
            cursor: pointer;
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23FFD700' stroke-width='2'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 14px center;
            padding-right: 36px;
        }
        .lead-form-group select option {
            background: var(--bg-dark);
            color: var(--text-white);
        }
        .btn-submit-lead {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--accent-gold) 0%, #C8A415 100%);
            color: var(--bg-dark);
            font-weight: 700;
            font-size: 15px;
            padding: 14px 28px;
            border-radius: var(--radius-full);
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-fast);
            margin-top: 8px;
            text-decoration: none;
        }
        .btn-submit-lead:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-gold-lg);
            color: var(--bg-dark);
        }
        .lead-form-note {
            font-size: 12px;
            color: var(--text-muted);
            text-align: center;
            margin-top: 8px;
        }
        
        /* ===== SCENARIOS / DATA BADGES ===== */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 22px;
        }
        .scenario-card {
            background: rgba(14, 53, 34, 0.5);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 24px;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .scenario-card:hover {
            border-color: var(--border-gold);
            background: rgba(14, 53, 34, 0.75);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .scenario-card-header {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .scenario-card-header i {
            font-size: 24px;
            color: var(--accent-gold);
            width: 36px;
            text-align: center;
        }
        .scenario-card h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-white);
        }
        .scenario-card p {
            font-size: 14px;
            color: var(--text-soft);
            line-height: 1.65;
        }
        .scenario-badge {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 11px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: var(--radius-full);
            background: rgba(211, 47, 47, 0.7);
            color: #fff;
        }
        .scenario-badge.gold {
            background: rgba(255, 215, 0, 0.15);
            color: var(--accent-gold);
        }
        
        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: rgba(14, 53, 34, 0.55);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            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: 18px 22px;
            cursor: pointer;
            font-weight: 600;
            font-size: 15px;
            color: var(--text-white);
            transition: color var(--transition-fast);
            user-select: none;
            width: 100%;
            text-align: left;
            background: none;
        }
        .faq-question:hover {
            color: var(--accent-gold);
        }
        .faq-question i {
            flex-shrink: 0;
            font-size: 14px;
            color: var(--accent-gold);
            transition: transform var(--transition-base);
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base), padding var(--transition-base);
            padding: 0 22px;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: 18px;
        }
        .faq-answer p {
            font-size: 14px;
            color: var(--text-soft);
            line-height: 1.7;
        }
        
        /* ===== CTA SECTION ===== */
        .cta-section {
            background: linear-gradient(135deg, rgba(18, 62, 37, 0.95) 0%, rgba(7, 31, 19, 0.98) 100%);
            border-top: 1px solid var(--border-gold-strong);
            padding: 60px 0;
            text-align: center;
        }
        .cta-section .container {
            max-width: 720px;
        }
        .cta-section h2 {
            font-family: var(--font-display);
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 15px;
            color: var(--text-mint);
            line-height: 1.7;
            margin-bottom: 28px;
        }
        .cta-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
        }
        
        /* ===== FOOTER ===== */
        .site-footer {
            background: var(--bg-dark);
            border-top: 1px solid var(--border-light);
            padding: 50px 0 20px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 30px;
        }
        .footer-brand h3 {
            font-size: 18px;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 10px;
        }
        .footer-brand h3 span {
            color: var(--accent-gold);
        }
        .footer-brand p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 360px;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul a {
            font-size: 13px;
            color: var(--text-muted);
            transition: all var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .footer-col ul a:hover {
            color: var(--accent-gold);
            transform: translateX(3px);
        }
        .footer-col ul a i {
            font-size: 10px;
            color: var(--accent-gold);
        }
        .footer-bottom {
            border-top: 1px solid var(--border-light);
            padding-top: 18px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 14px;
        }
        .footer-bottom p {
            font-size: 12px;
            color: var(--text-muted);
        }
        .footer-bottom a {
            color: var(--accent-gold);
            font-weight: 500;
        }
        .footer-badges {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .footer-badge {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 11px;
            font-weight: 600;
            color: var(--text-mint);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border-light);
            padding: 4px 10px;
            border-radius: var(--radius-full);
        }
        .footer-badge i {
            color: var(--accent-gold);
            font-size: 10px;
        }
        
        /* ===== RESPONSIVE ===== */
        @media (max-width: 1024px) {
            .strategy-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .main-nav {
                gap: 2px;
            }
            .main-nav a {
                padding: 8px 12px;
                font-size: 13px;
            }
            .btn-login-desktop,
            .btn-signup-desktop {
                padding: 8px 14px;
                font-size: 12px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --header-height: var(--header-height-mobile);
            }
            .container {
                padding: 0 16px;
            }
            .main-nav {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(7, 31, 19, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                gap: 4px;
                padding: 16px 24px;
                border-bottom: 1px solid var(--border-gold);
                box-shadow: var(--shadow-lg);
                display: none;
                z-index: 99;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                width: 100%;
                text-align: left;
                padding: 12px 16px;
                font-size: 15px;
            }
            .main-nav a.active::after {
                display: none;
            }
            .mobile-toggle {
                display: flex;
            }
            .btn-login-desktop,
            .btn-signup-desktop {
                display: none;
            }
            .page-hero {
                min-height: 440px;
                padding-top: calc(var(--header-height) + 24px);
                background-attachment: scroll;
            }
            .page-hero h1 {
                font-size: 28px;
            }
            .strategy-grid {
                grid-template-columns: 1fr;
            }
            .scenario-grid {
                grid-template-columns: 1fr;
            }
            .lead-form-row {
                grid-template-columns: 1fr;
            }
            .lead-gen-panel {
                padding: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .section {
                padding: 48px 0;
            }
            .cta-section {
                padding: 40px 0;
            }
            .fab-support {
                bottom: 80px;
                left: 12px;
                width: 46px;
                height: 46px;
                font-size: 19px;
            }
        }
        @media (max-width: 520px) {
            .page-hero {
                min-height: 400px;
            }
            .page-hero h1 {
                font-size: 24px;
            }
            .page-hero p {
                font-size: 14px;
            }
            .btn-primary-hero,
            .btn-ghost-hero,
            .btn-submit-lead {
                padding: 12px 20px;
                font-size: 14px;
                width: 100%;
                justify-content: center;
            }
            .page-hero-actions {
                flex-direction: column;
            }
            .process-item {
                flex-direction: column;
                gap: 12px;
                padding: 16px;
            }
            .process-number {
                width: 38px;
                height: 38px;
                font-size: 16px;
            }
            .lead-gen-panel h3 {
                font-size: 20px;
            }
        }

/* roulang page: category3 */
:root {
            --bg-primary: #0A2E1C;
            --bg-secondary: #123E25;
            --bg-dark: #071F13;
            --bg-card: #0E3522;
            --bg-card-hover: #144229;
            --accent-gold: #FFD700;
            --accent-gold-soft: #F5C84C;
            --accent-red: #D32F2F;
            --accent-red-soft: #EF5350;
            --text-white: #FFFFFF;
            --text-mint: #D1F2EB;
            --text-soft: #B8DCCF;
            --text-muted: #8BB8A6;
            --border-gold: rgba(255, 215, 0, 0.35);
            --border-gold-strong: rgba(255, 215, 0, 0.7);
            --border-light: rgba(209, 242, 235, 0.12);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --radius-full: 9999px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.15);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.25);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.35);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.3);
            --shadow-gold-lg: 0 8px 32px rgba(255, 215, 0, 0.4);
            --font-main: 'Be Vietnam Pro', sans-serif;
            --font-display: 'Playfair Display', serif;
            --transition-fast: 0.2s ease;
            --transition-base: 0.3s ease;
            --transition-slow: 0.5s ease;
            --container-max: 1200px;
            --header-height: 76px;
            --header-height-mobile: 64px;
        }

        /* ===== Bootstrap 覆盖 ===== */
        body {
            font-family: var(--font-main);
            background-color: var(--bg-primary);
            color: var(--text-white);
            line-height: 1.65;
            font-size: 16px;
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            background-image: radial-gradient(ellipse at top left, rgba(18, 62, 37, 0.8) 0%, transparent 60%),
                radial-gradient(ellipse at bottom right, rgba(7, 31, 19, 0.9) 0%, transparent 55%);
            background-attachment: fixed;
        }

        a {
            color: var(--accent-gold);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--accent-gold-soft);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        .container {
            max-width: var(--container-max);
        }

        /* ===== HEADER / NAV ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(7, 31, 19, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-light);
            height: var(--header-height);
            transition: background var(--transition-base), box-shadow var(--transition-base);
        }
        .site-header.scrolled {
            background: rgba(7, 31, 19, 0.97);
            box-shadow: var(--shadow-md);
            border-bottom-color: var(--border-gold);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 20px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            cursor: pointer;
        }
        .logo-icon {
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--accent-gold) 0%, #C8A415 100%);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--bg-dark);
            box-shadow: var(--shadow-gold);
            transition: transform var(--transition-base);
        }
        .logo:hover .logo-icon {
            transform: scale(1.08) rotate(-5deg);
        }
        .logo-text {
            font-weight: 800;
            font-size: 15px;
            line-height: 1.3;
            color: var(--text-white);
            max-width: 220px;
            letter-spacing: -0.01em;
        }
        .logo-text span {
            color: var(--accent-gold);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            justify-content: center;
            flex-wrap: wrap;
        }
        .main-nav a {
            color: var(--text-mint);
            font-weight: 500;
            font-size: 14px;
            padding: 8px 16px;
            border-radius: var(--radius-full);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
            display: inline-block;
        }
        .main-nav a:hover {
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.06);
        }
        .main-nav a.active {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.1);
            font-weight: 600;
        }
        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 16px;
            height: 2px;
            background: var(--accent-gold);
            border-radius: 2px;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .btn-login-desktop {
            color: var(--text-mint);
            font-weight: 600;
            font-size: 14px;
            padding: 9px 18px;
            border-radius: var(--radius-full);
            transition: all var(--transition-fast);
            white-space: nowrap;
            background: transparent;
            border: 1px solid transparent;
        }
        .btn-login-desktop:hover {
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.08);
            border-color: var(--border-light);
        }
        .btn-signup-desktop {
            color: var(--bg-dark);
            font-weight: 700;
            font-size: 14px;
            padding: 10px 20px;
            border-radius: var(--radius-full);
            background: linear-gradient(135deg, var(--accent-gold) 0%, #E0B815 100%);
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-base);
            white-space: nowrap;
            border: none;
            display: inline-block;
        }
        .btn-signup-desktop:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-gold-lg);
            color: var(--bg-dark);
        }
        .mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 6px;
            background: transparent;
            border: none;
            cursor: pointer;
        }
        .mobile-toggle span {
            display: block;
            width: 26px;
            height: 3px;
            background: var(--text-white);
            border-radius: 3px;
            transition: all var(--transition-base);
        }
        .mobile-toggle.active span:nth-child(1) {
            transform: translateY(8px) rotate(45deg);
        }
        .mobile-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .mobile-toggle.active span:nth-child(3) {
            transform: translateY(-8px) rotate(-45deg);
        }

        /* Mobile menu */
        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(7, 31, 19, 0.98);
            backdrop-filter: blur(20px);
            z-index: 99;
            padding: 24px;
            flex-direction: column;
            gap: 10px;
            overflow-y: auto;
        }
        .mobile-menu.open {
            display: flex;
        }
        .mobile-menu a {
            display: block;
            color: var(--text-mint);
            font-weight: 600;
            font-size: 18px;
            padding: 16px 20px;
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-light);
        }
        .mobile-menu a:hover,
        .mobile-menu a.active {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
            border-color: var(--border-gold);
        }

        /* ===== HERO ===== */
        .category-hero {
            padding: calc(var(--header-height) + 60px) 0 60px;
            position: relative;
            background: linear-gradient(160deg, rgba(7, 31, 19, 0.6) 0%, rgba(10, 46, 28, 0.92) 50%, rgba(18, 62, 37, 0.8) 100%);
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.15;
            z-index: 0;
        }
        .category-hero .container {
            position: relative;
            z-index: 1;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 215, 0, 0.15);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-full);
            padding: 8px 18px;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-gold);
            margin-bottom: 20px;
            letter-spacing: 0.02em;
        }
        .hero-title {
            font-family: var(--font-display);
            font-size: clamp(2rem, 4.5vw, 3.2rem);
            line-height: 1.2;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 18px;
        }
        .hero-title em {
            font-style: normal;
            color: var(--accent-gold);
        }
        .hero-subtitle {
            color: var(--text-mint);
            font-size: 17px;
            line-height: 1.7;
            margin-bottom: 28px;
            max-width: 580px;
            font-weight: 400;
        }
        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 32px;
        }
        .btn-gold {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: linear-gradient(135deg, var(--accent-gold) 0%, #D4A520 100%);
            color: var(--bg-dark);
            font-weight: 700;
            font-size: 15px;
            padding: 14px 28px;
            border-radius: var(--radius-full);
            border: none;
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-base);
            cursor: pointer;
        }
        .btn-gold:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-gold-lg);
            color: var(--bg-dark);
        }
        .btn-outline-mint {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: transparent;
            color: var(--text-mint);
            font-weight: 600;
            font-size: 15px;
            padding: 13px 28px;
            border-radius: var(--radius-full);
            border: 1px solid var(--border-light);
            transition: all var(--transition-base);
            cursor: pointer;
        }
        .btn-outline-mint:hover {
            background: rgba(255, 255, 255, 0.06);
            border-color: var(--border-gold);
            color: var(--text-white);
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
        }
        .hero-stat {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-mint);
            font-size: 14px;
            font-weight: 500;
        }
        .hero-stat i {
            color: var(--accent-gold);
            font-size: 16px;
        }
        .hero-visual {
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            min-height: 350px;
        }
        .hero-visual img {
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-lg);
            width: 100%;
            max-width: 480px;
            height: auto;
            object-fit: cover;
            border: 2px solid var(--border-gold);
        }
        .hero-visual::after {
            content: '';
            position: absolute;
            inset: -10px;
            border-radius: calc(var(--radius-xl) + 10px);
            background: linear-gradient(135deg, rgba(255, 215, 0, 0.15), transparent 40%, transparent 60%, rgba(255, 215, 0, 0.1));
            z-index: -1;
            pointer-events: none;
        }
        .badge-float {
            position: absolute;
            background: rgba(7, 31, 19, 0.9);
            backdrop-filter: blur(12px);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            padding: 12px 16px;
            box-shadow: var(--shadow-md);
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 600;
            font-size: 13px;
            color: var(--text-white);
            animation: floatBadge 5s ease-in-out infinite;
        }
        .badge-float.top-left {
            top: 20px;
            left: 10px;
        }
        .badge-float.bottom-right {
            bottom: 20px;
            right: 10px;
            animation-delay: 2.5s;
        }
        .badge-float i {
            color: var(--accent-gold);
            font-size: 18px;
        }
        @keyframes floatBadge {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-8px); }
        }

        /* ===== 卖点三连 ===== */
        .features-section {
            padding: 70px 0;
            background: var(--bg-dark);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }
        .section-label {
            display: inline-block;
            color: var(--accent-gold);
            font-size: 13px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            margin-bottom: 12px;
        }
        .section-title {
            font-family: var(--font-display);
            font-size: clamp(1.5rem, 3vw, 2.2rem);
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 16px;
            line-height: 1.3;
        }
        .section-desc {
            color: var(--text-soft);
            font-size: 16px;
            line-height: 1.7;
            max-width: 600px;
        }
        .feature-card-main {
            background: linear-gradient(160deg, var(--bg-card) 0%, var(--bg-secondary) 100%);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 32px;
            height: 100%;
            min-height: 280px;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }
        .feature-card-main::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent-gold), transparent);
        }
        .feature-card-main:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-gold-lg);
            border-color: var(--border-gold-strong);
        }
        .feature-card-side {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 28px;
            height: 100%;
            min-height: 160px;
            transition: all var(--transition-base);
        }
        .feature-card-side:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-gold);
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }
        .feature-icon {
            width: 50px;
            height: 50px;
            border-radius: var(--radius-md);
            background: rgba(255, 215, 0, 0.15);
            border: 1px solid var(--border-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-gold);
            font-size: 22px;
            margin-bottom: 18px;
            transition: all var(--transition-base);
        }
        .feature-card-main:hover .feature-icon {
            transform: scale(1.1) rotate(-5deg);
            background: rgba(255, 215, 0, 0.25);
        }
        .feature-card-side:hover .feature-icon {
            transform: scale(1.08);
            background: rgba(255, 215, 0, 0.2);
        }
        .feature-title {
            color: var(--text-white);
            font-weight: 700;
            font-size: 19px;
            margin-bottom: 10px;
        }
        .feature-text {
            color: var(--text-soft);
            font-size: 14.5px;
            line-height: 1.7;
            margin-bottom: 0;
        }
        .feature-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--accent-gold);
            color: var(--bg-dark);
            font-weight: 800;
            font-size: 13px;
            margin-right: 8px;
        }

        /* ===== 场景演示 ===== */
        .scenarios-section {
            padding: 70px 0;
            background: var(--bg-primary);
            border-bottom: 1px solid var(--border-light);
        }
        .scenario-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 26px;
            height: 100%;
            transition: all var(--transition-base);
            position: relative;
        }
        .scenario-card:hover {
            border-color: var(--border-gold);
            background: var(--bg-card-hover);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .scenario-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 215, 0, 0.12);
            border-radius: var(--radius-full);
            padding: 5px 14px;
            font-size: 12px;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 14px;
            letter-spacing: 0.04em;
        }
        .scenario-title {
            color: var(--text-white);
            font-weight: 700;
            font-size: 17px;
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .scenario-text {
            color: var(--text-soft);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 0;
        }
        .scenario-image {
            border-radius: var(--radius-md);
            overflow: hidden;
            margin-bottom: 18px;
            border: 1px solid var(--border-light);
        }
        .scenario-image img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .scenario-card:hover .scenario-image img {
            transform: scale(1.05);
        }

        /* ===== 流程 ===== */
        .steps-section {
            padding: 70px 0;
            background: var(--bg-dark);
            border-bottom: 1px solid var(--border-light);
        }
        .step-item {
            display: flex;
            gap: 18px;
            padding: 20px 0;
            border-bottom: 1px solid var(--border-light);
            transition: all var(--transition-base);
        }
        .step-item:last-child {
            border-bottom: none;
        }
        .step-item:hover {
            padding-left: 8px;
        }
        .step-num {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-gold) 0%, #C8A415 100%);
            color: var(--bg-dark);
            font-weight: 800;
            font-size: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow-gold);
        }
        .step-content {
            flex: 1;
        }
        .step-title {
            color: var(--text-white);
            font-weight: 700;
            font-size: 17px;
            margin-bottom: 6px;
        }
        .step-text {
            color: var(--text-soft);
            font-size: 14.5px;
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== 数据/社会认同 ===== */
        .proof-section {
            padding: 70px 0;
            background: var(--bg-primary);
            border-bottom: 1px solid var(--border-light);
        }
        .proof-card {
            background: linear-gradient(160deg, var(--bg-card) 0%, var(--bg-secondary) 100%);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 28px;
            text-align: center;
            height: 100%;
            transition: all var(--transition-base);
        }
        .proof-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-gold);
            border-color: var(--border-gold-strong);
        }
        .proof-number {
            font-family: var(--font-display);
            font-size: 2.8rem;
            font-weight: 700;
            color: var(--accent-gold);
            line-height: 1.1;
            margin-bottom: 6px;
        }
        .proof-label {
            color: var(--text-mint);
            font-size: 14px;
            font-weight: 500;
            line-height: 1.5;
        }
        .proof-icon {
            font-size: 32px;
            color: var(--accent-gold);
            margin-bottom: 12px;
            display: block;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 70px 0;
            background: var(--bg-dark);
            border-bottom: 1px solid var(--border-light);
        }
        .accordion {
            --bs-accordion-bg: transparent;
            --bs-accordion-border-color: var(--border-light);
            --bs-accordion-btn-color: var(--text-white);
            --bs-accordion-btn-bg: transparent;
            --bs-accordion-active-bg: rgba(255, 215, 0, 0.05);
            --bs-accordion-active-color: var(--accent-gold);
            --bs-accordion-btn-focus-border-color: var(--border-gold);
            --bs-accordion-btn-focus-box-shadow: 0 0 0 0.25rem rgba(255, 215, 0, 0.1);
        }
        .accordion-item {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md) !important;
            margin-bottom: 12px;
            overflow: hidden;
        }
        .accordion-button {
            font-weight: 600;
            font-size: 15px;
            padding: 18px 22px;
            color: var(--text-white);
            background: transparent;
        }
        .accordion-button:not(.collapsed) {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.06);
            box-shadow: none;
        }
        .accordion-button:focus {
            box-shadow: none;
            border-color: var(--border-gold);
        }
        .accordion-button::after {
            filter: brightness(0) invert(1) sepia(1) saturate(5) hue-rotate(40deg);
        }
        .accordion-body {
            color: var(--text-soft);
            font-size: 14.5px;
            line-height: 1.7;
            padding: 18px 22px;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 70px 0;
            background: linear-gradient(160deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
            border-bottom: 1px solid var(--border-light);
        }
        .cta-box {
            background: linear-gradient(135deg, rgba(7, 31, 19, 0.95) 0%, rgba(18, 62, 37, 0.9) 100%);
            border: 2px solid var(--border-gold-strong);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            box-shadow: var(--shadow-gold-lg);
            position: relative;
            overflow: hidden;
        }
        .cta-box::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent-gold), var(--accent-red), var(--accent-gold));
        }
        .cta-box h2 {
            font-family: var(--font-display);
            font-size: clamp(1.5rem, 3vw, 2rem);
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 14px;
        }
        .cta-box p {
            color: var(--text-mint);
            font-size: 16px;
            line-height: 1.7;
            margin-bottom: 24px;
        }

        /* ===== 底部固定转化条 ===== */
        .sticky-cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 90;
            background: rgba(7, 31, 19, 0.95);
            backdrop-filter: blur(20px);
            border-top: 1px solid var(--border-gold);
            padding: 14px 0;
            transform: translateY(100%);
            transition: transform var(--transition-base);
            box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.3);
        }
        .sticky-cta-bar.visible {
            transform: translateY(0);
        }
        .sticky-cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }
        .sticky-cta-text {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-mint);
            font-size: 14px;
            font-weight: 600;
        }
        .sticky-cta-text i {
            color: var(--accent-gold);
            font-size: 18px;
        }
        .sticky-cta-btn {
            background: linear-gradient(135deg, var(--accent-gold) 0%, #D4A520 100%);
            color: var(--bg-dark);
            font-weight: 700;
            font-size: 14px;
            padding: 11px 24px;
            border-radius: var(--radius-full);
            border: none;
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-base);
            cursor: pointer;
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .sticky-cta-btn:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-gold-lg);
            color: var(--bg-dark);
        }

        /* ===== FAB ===== */
        .fab-royal {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, #1A1A1A 0%, #0D0D0D 100%);
            border: 3px solid var(--accent-gold);
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3), inset 0 1px 3px rgba(255, 215, 0, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            opacity: 0.7;
            transition: all var(--transition-base);
            animation: floatFab 4s ease-in-out infinite;
            text-decoration: none;
        }
        .fab-royal:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 25px rgba(255, 215, 0, 0.5), inset 0 1px 4px rgba(255, 215, 0, 0.3);
        }
        .fab-royal:active {
            transform: scale(0.95) translateY(2px);
        }
        .fab-royal i {
            color: var(--accent-gold);
            font-size: 22px;
            transition: transform var(--transition-base);
        }
        .fab-royal:hover i {
            transform: rotate(360deg);
        }
        .fab-royal .fab-dot {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            background: #D32F2F;
            border-radius: 50%;
            border: 2px solid #0D0D0D;
            animation: blinkDot 1.5s ease-in-out infinite;
        }
        @keyframes floatFab {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-8px); }
        }
        @keyframes blinkDot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }

        /* ===== FOOTER ===== */
        .site-footer {
            background: var(--bg-dark);
            padding: 60px 0 30px;
            border-top: 1px solid var(--border-gold);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand h3 {
            font-family: var(--font-display);
            font-size: 20px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 14px;
        }
        .footer-brand h3 span {
            color: var(--accent-gold);
        }
        .footer-brand p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.7;
            max-width: 420px;
            margin-bottom: 0;
        }
        .footer-col h4 {
            color: var(--text-white);
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: var(--text-muted);
            font-size: 14px;
            transition: all var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .footer-col ul li a:hover {
            color: var(--accent-gold);
            transform: translateX(4px);
        }
        .footer-col ul li a i {
            font-size: 10px;
            color: var(--accent-gold);
        }
        .footer-bottom {
            border-top: 1px solid var(--border-light);
            padding-top: 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }
        .footer-bottom p {
            color: var(--text-muted);
            font-size: 13px;
            margin-bottom: 0;
        }
        .footer-bottom p a {
            color: var(--accent-gold);
            font-weight: 600;
        }
        .footer-badges {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }
        .footer-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-full);
            padding: 6px 14px;
            font-size: 12px;
            font-weight: 500;
            color: var(--text-mint);
        }
        .footer-badge i {
            color: var(--accent-gold);
            font-size: 12px;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .header-actions .btn-login-desktop,
            .header-actions .btn-signup-desktop {
                display: none;
            }
            .mobile-toggle {
                display: flex;
            }
            .main-nav {
                display: none;
            }
            .category-hero {
                padding-top: calc(var(--header-height-mobile) + 40px);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
        }

        @media (max-width: 768px) {
            .category-hero {
                padding-top: calc(var(--header-height-mobile) + 30px);
                padding-bottom: 40px;
            }
            .hero-visual {
                min-height: 260px;
                margin-top: 24px;
            }
            .hero-stats {
                gap: 14px;
            }
            .features-section,
            .scenarios-section,
            .steps-section,
            .proof-section,
            .faq-section,
            .cta-section {
                padding: 50px 0;
            }
            .feature-card-main {
                min-height: auto;
                padding: 24px;
            }
            .feature-card-side {
                min-height: auto;
                padding: 22px;
            }
            .step-item {
                flex-direction: column;
                gap: 10px;
                padding: 16px 0;
            }
            .step-num {
                width: 36px;
                height: 36px;
                font-size: 15px;
            }
            .cta-box {
                padding: 32px 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 26px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
            .sticky-cta-inner {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .fab-royal {
                width: 48px;
                height: 48px;
                left: 12px;
                bottom: 80px;
            }
            .fab-royal i {
                font-size: 18px;
            }
        }

        @media (max-width: 520px) {
            :root {
                --header-height: 64px;
                --header-height-mobile: 60px;
            }
            .container {
                padding: 0 16px;
            }
            .logo-text {
                font-size: 13px;
                max-width: 170px;
            }
            .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 16px;
            }
            .hero-title {
                font-size: 1.6rem;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .hero-cta-group {
                flex-direction: column;
                gap: 10px;
            }
            .hero-visual {
                min-height: 200px;
            }
            .badge-float {
                padding: 8px 12px;
                font-size: 11px;
            }
            .proof-number {
                font-size: 2.2rem;
            }
            .cta-box {
                padding: 26px 18px;
            }
            .mobile-menu a {
                font-size: 16px;
                padding: 14px 16px;
            }
        }