/* roulang page: index */
:root {
            --bg-primary: #0A2E1C;
            --bg-secondary: #123E25;
            --bg-dark: #041A0F;
            --gold: #FFD700;
            --gold-light: #FFE55C;
            --gold-dark: #C5A059;
            --red: #D32F2F;
            --red-light: #EF5350;
            --text-white: #FFFFFF;
            --text-mint: #D1F2EB;
            --text-muted: #9BB8A8;
            --border-gold: rgba(255, 215, 0, 0.3);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.15);
            --shadow-gold-strong: 0 8px 32px rgba(255, 215, 0, 0.25);
            --radius-sm: 12px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            background-color: var(--bg-dark);
            color: var(--text-white);
            line-height: 1.65;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

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

        button, .btn {
            cursor: pointer;
            font-family: inherit;
            transition: all var(--transition-smooth);
            border: none;
            outline: none;
        }

        button:focus-visible, .btn:focus-visible, a:focus-visible {
            outline: 2px solid var(--gold);
            outline-offset: 3px;
            border-radius: 8px;
        }

        .container {
            width: 100%;
            max-width: 1240px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        .container-narrow {
            max-width: 960px;
        }

        /* ===== HEADER & NAVIGATION ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: rgba(10, 46, 28, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-gold);
            transition: background var(--transition-smooth);
        }

        .site-header.scrolled {
            background: rgba(4, 26, 15, 0.97);
            box-shadow: var(--shadow-gold);
        }

        .navbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
        }

        .navbar-brand {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--gold) !important;
            letter-spacing: -0.3px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .navbar-brand i {
            font-size: 1.5rem;
            color: var(--gold-light);
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-item {
            position: relative;
        }

        .nav-link {
            display: block;
            padding: 10px 16px;
            color: var(--text-mint);
            font-weight: 500;
            font-size: 0.95rem;
            border-radius: 8px;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

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

        .nav-link.active {
            font-weight: 600;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .btn-login {
            background: transparent;
            color: var(--text-mint);
            border: 1px solid var(--border-gold);
            padding: 9px 20px;
            border-radius: 24px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
        }

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

        .btn-signup {
            background: linear-gradient(135deg, var(--gold-dark), var(--gold));
            color: var(--bg-dark);
            padding: 10px 22px;
            border-radius: 24px;
            font-weight: 700;
            font-size: 0.9rem;
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-smooth);
            border: none;
        }

        .btn-signup:hover {
            background: linear-gradient(135deg, var(--gold), var(--gold-light));
            box-shadow: var(--shadow-gold-strong);
            transform: translateY(-1px);
            color: var(--bg-dark);
        }

        .btn-signup:active {
            transform: translateY(1px);
        }

        .navbar-toggler {
            display: none;
            background: transparent;
            border: 1px solid var(--border-gold);
            color: var(--text-mint);
            font-size: 1.5rem;
            padding: 6px 12px;
            border-radius: 10px;
            transition: all var(--transition-fast);
        }

        .navbar-toggler:hover {
            border-color: var(--gold);
            color: var(--gold);
        }

        @media (max-width: 991px) {
            .navbar-toggler {
                display: block;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(4, 26, 15, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 16px 20px;
                gap: 4px;
                border-bottom: 2px solid var(--border-gold);
                box-shadow: var(--shadow-gold-strong);
            }
            .nav-menu.show {
                display: flex;
            }
            .nav-link {
                width: 100%;
                padding: 12px 16px;
            }
            .nav-actions {
                gap: 8px;
            }
            .btn-login, .btn-signup {
                padding: 8px 16px;
                font-size: 0.85rem;
            }
        }

        @media (max-width: 520px) {
            .navbar-brand {
                font-size: 1rem;
            }
            .btn-login, .btn-signup {
                padding: 7px 14px;
                font-size: 0.8rem;
            }
        }

        /* ===== HERO (视频官网风) ===== */
        .hero-section {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            margin-top: 0;
            padding-top: 68px;
        }

        .hero-video-bg {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            z-index: 0;
            filter: brightness(0.35);
        }

        .hero-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(ellipse at center, rgba(10, 46, 28, 0.45) 0%, rgba(4, 26, 15, 0.85) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 800px;
            margin: 0 auto;
            padding: 60px 20px;
        }

        .hero-badge {
            display: inline-block;
            background: rgba(255, 215, 0, 0.12);
            border: 1px solid var(--border-gold);
            color: var(--gold-light);
            padding: 6px 18px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 24px;
            letter-spacing: 0.3px;
        }

        .hero-title {
            font-size: 3rem;
            font-weight: 800;
            line-height: 1.2;
            color: var(--text-white);
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }

        .hero-title span {
            color: var(--gold);
        }

        .hero-desc {
            font-size: 1.1rem;
            color: var(--text-mint);
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 640px;
            margin-left: auto;
            margin-right: auto;
        }

        .hero-cta-group {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn-hero-primary {
            background: linear-gradient(135deg, var(--gold-dark), var(--gold));
            color: var(--bg-dark);
            padding: 14px 32px;
            border-radius: 28px;
            font-weight: 700;
            font-size: 1.05rem;
            box-shadow: var(--shadow-gold-strong);
            transition: all var(--transition-smooth);
            border: none;
        }

        .btn-hero-primary:hover {
            background: linear-gradient(135deg, var(--gold), var(--gold-light));
            transform: translateY(-2px);
            box-shadow: 0 12px 40px rgba(255, 215, 0, 0.35);
            color: var(--bg-dark);
        }

        .btn-hero-secondary {
            background: transparent;
            color: var(--text-white);
            border: 2px solid rgba(255, 255, 255, 0.5);
            padding: 14px 28px;
            border-radius: 28px;
            font-weight: 600;
            font-size: 1.05rem;
            transition: all var(--transition-smooth);
        }

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

        .btn-play {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: rgba(255, 255, 255, 0.1);
            color: var(--text-white);
            border: 1px solid rgba(255, 255, 255, 0.3);
            padding: 12px 24px;
            border-radius: 28px;
            font-weight: 600;
            transition: all var(--transition-smooth);
        }

        .btn-play:hover {
            background: rgba(255, 255, 255, 0.2);
            border-color: var(--gold);
            color: var(--gold);
        }

        .btn-play i {
            font-size: 1.2rem;
        }

        @media (max-width: 768px) {
            .hero-title {
                font-size: 2rem;
            }
            .hero-desc {
                font-size: 0.95rem;
            }
            .btn-hero-primary, .btn-hero-secondary, .btn-play {
                padding: 11px 22px;
                font-size: 0.9rem;
            }
        }

        /* ===== SECTIONS ===== */
        section {
            padding: 80px 0;
            position: relative;
        }

        @media (max-width: 768px) {
            section {
                padding: 50px 0;
            }
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: var(--gold);
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .section-desc {
            font-size: 1rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 680px;
            margin-bottom: 40px;
        }

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

        /* ===== CHANNEL USP (渠道卖点) ===== */
        .channel-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 28px;
        }

        .channel-card {
            background: rgba(18, 62, 37, 0.5);
            border: 1px solid rgba(255, 215, 0, 0.15);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            transition: all var(--transition-smooth);
            text-align: left;
        }

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

        .channel-icon {
            font-size: 2.2rem;
            color: var(--gold);
            margin-bottom: 16px;
        }

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

        .channel-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin: 0;
        }

        /* ===== DATA STRIP (成功数据条) ===== */
        .data-strip {
            background: linear-gradient(135deg, var(--bg-secondary), var(--bg-primary));
            border-top: 2px solid var(--border-gold);
            border-bottom: 2px solid var(--border-gold);
            padding: 48px 0;
        }

        .data-row {
            display: flex;
            justify-content: space-around;
            flex-wrap: wrap;
            gap: 32px;
            text-align: center;
        }

        .data-item .data-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--gold);
            line-height: 1;
        }

        .data-item .data-label {
            font-size: 0.9rem;
            color: var(--text-mint);
            margin-top: 8px;
            font-weight: 500;
        }

        /* ===== LEAD FORM (线索表单) ===== */
        .lead-section {
            background: var(--bg-dark);
        }

        .lead-card {
            background: rgba(18, 62, 37, 0.6);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 48px 36px;
            text-align: center;
            max-width: 700px;
            margin: 0 auto;
        }

        .lead-card h3 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 12px;
        }

        .lead-card p {
            color: var(--text-muted);
            margin-bottom: 28px;
        }

        .lead-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .lead-form input {
            flex: 1;
            min-width: 220px;
            padding: 14px 20px;
            border-radius: 28px;
            border: 1px solid rgba(255, 215, 0, 0.3);
            background: rgba(0, 0, 0, 0.3);
            color: var(--text-white);
            font-size: 0.95rem;
            outline: none;
            transition: all var(--transition-fast);
        }

        .lead-form input:focus {
            border-color: var(--gold);
            box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.1);
        }

        .lead-form button {
            padding: 14px 28px;
            border-radius: 28px;
            background: linear-gradient(135deg, var(--gold-dark), var(--gold));
            color: var(--bg-dark);
            font-weight: 700;
            font-size: 0.95rem;
            border: none;
            box-shadow: var(--shadow-gold);
        }

        .lead-form button:hover {
            box-shadow: var(--shadow-gold-strong);
            transform: translateY(-1px);
        }

        /* ===== NEWS / 资讯列表 ===== */
        .news-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 36px;
            align-items: start;
        }

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

        .news-list li {
            border-bottom: 1px solid rgba(255, 215, 0, 0.1);
            padding: 16px 0;
            display: flex;
            gap: 16px;
            align-items: baseline;
            transition: all var(--transition-fast);
        }

        .news-list li:hover {
            background: rgba(255, 215, 0, 0.03);
        }

        .news-list li:last-child {
            border-bottom: none;
        }

        .news-date {
            font-size: 0.8rem;
            color: var(--gold);
            font-weight: 600;
            white-space: nowrap;
            min-width: 80px;
        }

        .news-list a {
            color: var(--text-mint);
            font-weight: 500;
            font-size: 0.95rem;
            transition: color var(--transition-fast);
        }

        .news-list a:hover {
            color: var(--gold);
        }

        .news-highlight {
            background: rgba(18, 62, 37, 0.5);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            padding: 24px;
        }

        .news-highlight h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--gold);
            margin-bottom: 12px;
        }

        .news-highlight p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

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

        /* ===== PRIVACY NOTE (隐私说明精简) ===== */
        .privacy-note {
            background: rgba(10, 46, 28, 0.6);
            border-top: 1px solid var(--border-gold);
            padding: 32px 0;
            text-align: center;
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== BRAND STORY (品牌故事) ===== */
        .story-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .story-image img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-gold-strong);
            width: 100%;
        }

        .story-text h3 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 16px;
        }

        .story-text p {
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 24px;
        }

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

        /* ===== QUICK FAQ (快速解答) ===== */
        .accordion-faq .accordion-item {
            background: transparent;
            border: 1px solid rgba(255, 215, 0, 0.15);
            border-radius: var(--radius-sm) !important;
            margin-bottom: 12px;
            overflow: hidden;
        }

        .accordion-faq .accordion-button {
            background: rgba(18, 62, 37, 0.5);
            color: var(--text-white);
            font-weight: 600;
            box-shadow: none;
            border-radius: var(--radius-sm) !important;
            padding: 18px 24px;
            transition: all var(--transition-fast);
        }

        .accordion-faq .accordion-button:not(.collapsed) {
            background: rgba(255, 215, 0, 0.08);
            color: var(--gold);
        }

        .accordion-faq .accordion-button::after {
            filter: brightness(3);
        }

        .accordion-faq .accordion-body {
            background: rgba(4, 26, 15, 0.5);
            color: var(--text-mint);
            padding: 20px 24px;
            line-height: 1.7;
        }

        /* ===== PROGRESS (任务进度) ===== */
        .progress-checklist {
            list-style: none;
            padding: 0;
        }

        .progress-checklist li {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 0;
            border-bottom: 1px solid rgba(255, 215, 0, 0.08);
            transition: all var(--transition-fast);
        }

        .progress-checklist li:last-child {
            border-bottom: none;
        }

        .progress-check {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--gold-dark), var(--gold));
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--bg-dark);
            font-weight: 700;
            flex-shrink: 0;
        }

        .progress-checklist span {
            color: var(--text-mint);
            font-weight: 500;
        }

        /* ===== FOOTER ===== */
        .site-footer {
            background: var(--bg-dark);
            border-top: 2px solid var(--border-gold);
            padding: 48px 0 32px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 36px;
        }

        .footer-col h5 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--gold);
            margin-bottom: 16px;
        }

        .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: 0.9rem;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            text-align: center;
            padding-top: 32px;
            margin-top: 32px;
            border-top: 1px solid rgba(255, 215, 0, 0.1);
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .badge-18 {
            display: inline-block;
            background: var(--red);
            color: white;
            padding: 4px 10px;
            border-radius: 6px;
            font-weight: 700;
            font-size: 0.8rem;
            margin-left: 8px;
        }

        /* ===== FAB ===== */
        .fab-float {
            position: fixed;
            left: 20px;
            bottom: 96px;
            z-index: 1050;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--bg-secondary), var(--bg-primary));
            border: 2px solid var(--gold);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--gold);
            font-size: 1.4rem;
            cursor: pointer;
            opacity: 0.7;
            box-shadow: var(--shadow-gold);
            animation: fab-breathe 3s ease-in-out infinite;
            transition: all var(--transition-smooth);
        }

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

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

        @keyframes fab-breathe {
            0%, 100% { box-shadow: 0 4px 20px rgba(255, 215, 0, 0.15); }
            50% { box-shadow: 0 4px 28px rgba(255, 215, 0, 0.35); }
        }

        @media (max-width: 520px) {
            .fab-float {
                width: 44px;
                height: 44px;
                left: 12px;
                bottom: 80px;
            }
        }

/* roulang page: article */
:root {
            --bg-primary: #0A2E1C;
            --bg-secondary: #123E25;
            --bg-dark: #041A0F;
            --gold: #FFD700;
            --gold-light: #FFE55C;
            --gold-dark: #C5A059;
            --red: #D32F2F;
            --red-light: #EF5350;
            --text-white: #FFFFFF;
            --text-mint: #D1F2EB;
            --text-muted: #9BB8A8;
            --border-gold: rgba(255, 215, 0, 0.3);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.15);
            --shadow-gold-strong: 0 8px 32px rgba(255, 215, 0, 0.25);
            --radius-sm: 12px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            background-color: var(--bg-dark);
            color: var(--text-white);
            line-height: 1.65;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            padding-top: 68px;
        }

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

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

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

        button,
        .btn {
            cursor: pointer;
            font-family: inherit;
            transition: all var(--transition-smooth);
            border: none;
            outline: none;
        }

        button:focus-visible,
        .btn:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--gold);
            outline-offset: 3px;
            border-radius: 8px;
        }

        .container {
            width: 100%;
            max-width: 1240px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        .container-narrow {
            max-width: 960px;
        }

        /* ===== HEADER & NAVIGATION ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: rgba(10, 46, 28, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-gold);
            transition: background var(--transition-smooth);
        }

        .site-header.scrolled {
            background: rgba(4, 26, 15, 0.97);
            box-shadow: var(--shadow-gold);
        }

        .navbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
        }

        .navbar-brand {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--gold) !important;
            letter-spacing: -0.3px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .navbar-brand i {
            font-size: 1.5rem;
            color: var(--gold-light);
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-item {
            position: relative;
        }

        .nav-link {
            display: block;
            padding: 10px 16px;
            color: var(--text-mint);
            font-weight: 500;
            font-size: 0.95rem;
            border-radius: 8px;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

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

        .nav-link.active {
            font-weight: 600;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .btn-login {
            background: transparent;
            color: var(--text-mint);
            border: 1px solid var(--border-gold);
            padding: 9px 20px;
            border-radius: 24px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
        }

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

        .btn-signup {
            background: linear-gradient(135deg, var(--gold-dark), var(--gold));
            color: var(--bg-dark);
            padding: 10px 22px;
            border-radius: 24px;
            font-weight: 700;
            font-size: 0.9rem;
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-smooth);
            border: none;
        }

        .btn-signup:hover {
            background: linear-gradient(135deg, var(--gold), var(--gold-light));
            box-shadow: var(--shadow-gold-strong);
            transform: translateY(-1px);
            color: var(--bg-dark);
        }

        .btn-signup:active {
            transform: translateY(1px);
        }

        .navbar-toggler {
            display: none;
            background: transparent;
            border: 1px solid var(--border-gold);
            color: var(--text-mint);
            font-size: 1.5rem;
            padding: 6px 12px;
            border-radius: 10px;
            transition: all var(--transition-fast);
        }

        .navbar-toggler:hover {
            border-color: var(--gold);
            color: var(--gold);
        }

        /* ===== ARTICLE HERO ===== */
        .article-hero {
            position: relative;
            background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-dark) 100%);
            padding: 80px 0 60px;
            text-align: left;
            border-bottom: 2px solid var(--border-gold);
        }

        .article-hero::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: 0.18;
            z-index: 0;
        }

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

        .article-hero .category-badge {
            display: inline-block;
            background: var(--red);
            color: var(--text-white);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 20px;
        }

        .article-hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.3;
            margin-bottom: 20px;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 30px;
        }

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

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

        .pull-quote {
            background: rgba(255, 215, 0, 0.07);
            border-left: 5px solid var(--gold);
            padding: 24px 28px;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--gold-light);
            line-height: 1.6;
            margin: 0;
            max-width: 700px;
        }

        /* ===== ARTICLE CONTENT ===== */
        .article-content-wrapper {
            padding: 60px 0;
            background: var(--bg-dark);
        }

        .article-body {
            font-size: 1.05rem;
            line-height: 1.8;
            color: var(--text-mint);
        }

        .article-body h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text-white);
            margin-top: 48px;
            margin-bottom: 20px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border-gold);
        }

        .article-body h3 {
            font-size: 1.4rem;
            font-weight: 600;
            color: var(--gold-light);
            margin-top: 36px;
            margin-bottom: 16px;
        }

        .article-body p {
            margin-bottom: 20px;
        }

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

        .article-body li {
            margin-bottom: 10px;
        }

        .article-body strong {
            color: var(--gold);
            font-weight: 700;
        }

        .article-body blockquote {
            background: var(--bg-secondary);
            border-left: 4px solid var(--gold);
            padding: 20px 24px;
            border-radius: var(--radius-sm);
            margin: 32px 0;
            font-style: italic;
            color: var(--gold-light);
        }

        .article-body img {
            border-radius: var(--radius-md);
            margin: 32px 0;
            box-shadow: var(--shadow-gold);
        }

        .article-body .tip-box {
            background: rgba(255, 215, 0, 0.06);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            padding: 24px;
            margin: 32px 0;
        }

        .tip-box .tip-title {
            font-weight: 700;
            color: var(--gold);
            font-size: 1.1rem;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        /* ===== RELATED ARTICLES ===== */
        .related-section {
            padding: 60px 0;
            background: var(--bg-primary);
        }

        .section-title {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 36px;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .section-title i {
            color: var(--gold);
        }

        .related-card {
            background: var(--bg-secondary);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-smooth);
            border: 1px solid var(--border-gold);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

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

        .related-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }

        .related-card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .related-card-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .related-card-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 16px;
            flex: 1;
        }

        .related-card-body .read-more {
            align-self: flex-start;
            color: var(--gold);
            font-weight: 600;
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition-fast);
        }

        .related-card-body .read-more:hover {
            gap: 12px;
            color: var(--gold-light);
        }

        /* ===== NOT FOUND ===== */
        .not-found-state {
            text-align: center;
            padding: 80px 20px;
        }

        .not-found-state i {
            font-size: 4rem;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .not-found-state h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 16px;
        }

        .not-found-state p {
            color: var(--text-muted);
            margin-bottom: 24px;
            font-size: 1.05rem;
        }

        .not-found-state .btn-gold {
            background: linear-gradient(135deg, var(--gold-dark), var(--gold));
            color: var(--bg-dark);
            padding: 12px 28px;
            border-radius: 24px;
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all var(--transition-smooth);
        }

        .not-found-state .btn-gold:hover {
            background: linear-gradient(135deg, var(--gold), var(--gold-light));
            box-shadow: var(--shadow-gold-strong);
        }

        /* ===== FAB ===== */
        .fab-support {
            position: fixed;
            left: 20px;
            bottom: 96px;
            z-index: 1040;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: radial-gradient(circle at 40% 40%, #1C1C1E, #0A0A0A);
            border: 3px solid var(--gold);
            color: var(--gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            box-shadow: var(--shadow-gold);
            opacity: 0.75;
            animation: floatChip 3s ease-in-out infinite;
            transition: all var(--transition-smooth);
            cursor: pointer;
        }

        .fab-support:hover {
            opacity: 1;
            transform: scale(1.15);
            box-shadow: var(--shadow-gold-strong);
            color: var(--gold-light);
        }

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

        .fab-support .notification-dot {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            background: var(--red);
            border: 2px solid var(--bg-dark);
            border-radius: 50%;
            animation: blink 1.4s infinite;
        }

        @keyframes blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.35; }
        }

        /* ===== FOOTER ===== */
        .site-footer {
            background: var(--bg-dark);
            border-top: 2px solid var(--border-gold);
            padding: 60px 0 30px;
            color: var(--text-mint);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-col h5 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--gold);
            margin-bottom: 18px;
        }

        .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: 0.92rem;
            transition: color var(--transition-fast);
        }

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

        .badge-18 {
            display: inline-block;
            background: var(--red);
            color: white;
            font-weight: 800;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.8rem;
            margin-top: 12px;
            border: 1px solid var(--gold);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 215, 0, 0.2);
            padding-top: 24px;
            text-align: center;
            font-size: 0.88rem;
            color: var(--text-muted);
        }

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

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

        @media (max-width: 768px) {
            .navbar-toggler {
                display: block;
            }

            .nav-menu {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(4, 26, 15, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 16px 20px;
                gap: 4px;
                border-bottom: 2px solid var(--border-gold);
                box-shadow: var(--shadow-gold-strong);
            }

            .nav-menu.show {
                display: flex;
            }

            .nav-actions {
                gap: 6px;
            }

            .btn-login,
            .btn-signup {
                padding: 7px 14px;
                font-size: 0.82rem;
            }

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

            .pull-quote {
                font-size: 1rem;
                padding: 16px 20px;
            }

            .article-body h2 {
                font-size: 1.4rem;
            }

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

            .fab-support {
                left: 12px;
                bottom: 80px;
                width: 48px;
                height: 48px;
                font-size: 1.3rem;
            }
        }

        @media (max-width: 520px) {
            .navbar-brand {
                font-size: 1rem;
            }

            .nav-actions {
                gap: 4px;
            }

            .btn-login,
            .btn-signup {
                padding: 6px 10px;
                font-size: 0.75rem;
            }

            .article-hero h1 {
                font-size: 1.5rem;
            }

            .article-meta {
                font-size: 0.82rem;
                gap: 10px;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #0A2E1C;
            --bg-secondary: #123E25;
            --bg-dark: #041A0F;
            --gold: #FFD700;
            --gold-light: #FFE55C;
            --gold-dark: #C5A059;
            --red: #D32F2F;
            --red-light: #EF5350;
            --text-white: #FFFFFF;
            --text-mint: #D1F2EB;
            --text-muted: #9BB8A8;
            --border-gold: rgba(255, 215, 0, 0.3);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.15);
            --shadow-gold-strong: 0 8px 32px rgba(255, 215, 0, 0.25);
            --radius-sm: 12px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            background-color: var(--bg-dark);
            color: var(--text-white);
            line-height: 1.65;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            padding-top: 80px;
        }

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, .btn {
            cursor: pointer;
            font-family: inherit;
            transition: all var(--transition-smooth);
            border: none;
            outline: none;
        }
        button:focus-visible, .btn:focus-visible, a:focus-visible {
            outline: 2px solid var(--gold);
            outline-offset: 3px;
            border-radius: 8px;
        }
        .container {
            width: 100%;
            max-width: 1240px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        .container-narrow { max-width: 960px; }

        /* ===== HEADER & NAVIGATION ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: rgba(10, 46, 28, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-gold);
            transition: background var(--transition-smooth);
        }
        .site-header.scrolled {
            background: rgba(4, 26, 15, 0.97);
            box-shadow: var(--shadow-gold);
        }
        .navbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
        }
        .navbar-brand {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--gold) !important;
            letter-spacing: -0.3px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .navbar-brand i {
            font-size: 1.5rem;
            color: var(--gold-light);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-item { position: relative; }
        .nav-link {
            display: block;
            padding: 10px 16px;
            color: var(--text-mint);
            font-weight: 500;
            font-size: 0.95rem;
            border-radius: 8px;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-link:hover,
        .nav-link.active {
            color: var(--gold);
            background: rgba(255, 215, 0, 0.08);
        }
        .nav-link.active { font-weight: 600; }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .btn-login {
            background: transparent;
            color: var(--text-mint);
            border: 1px solid var(--border-gold);
            padding: 9px 20px;
            border-radius: 24px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
        }
        .btn-login:hover {
            border-color: var(--gold);
            color: var(--gold);
            background: rgba(255, 215, 0, 0.06);
        }
        .btn-signup {
            background: linear-gradient(135deg, var(--gold-dark), var(--gold));
            color: var(--bg-dark);
            padding: 10px 22px;
            border-radius: 24px;
            font-weight: 700;
            font-size: 0.9rem;
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-smooth);
            border: none;
        }
        .btn-signup:hover {
            background: linear-gradient(135deg, var(--gold), var(--gold-light));
            box-shadow: var(--shadow-gold-strong);
            transform: translateY(-1px);
            color: var(--bg-dark);
        }
        .btn-signup:active { transform: translateY(1px); }
        .navbar-toggler {
            display: none;
            background: transparent;
            border: 1px solid var(--border-gold);
            color: var(--text-mint);
            font-size: 1.5rem;
            padding: 6px 12px;
            border-radius: 10px;
            transition: all var(--transition-fast);
        }
        .navbar-toggler:hover {
            border-color: var(--gold);
            color: var(--gold);
        }

        /* ===== HERO SECTION ===== */
        .page-hero {
            padding: 60px 0 50px;
            background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
            position: relative;
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(255,215,0,0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-coupon-wall {
            display: flex;
            align-items: center;
            gap: 40px;
            position: relative;
            z-index: 2;
        }
        .hero-coupon-main {
            flex: 0 0 420px;
            background: linear-gradient(145deg, var(--red) 0%, #7C1A1A 100%);
            border: 2px solid var(--gold);
            border-radius: var(--radius-lg);
            padding: 50px 40px;
            text-align: center;
            box-shadow: var(--shadow-gold-strong), 0 20px 40px rgba(0,0,0,0.4);
            position: relative;
            overflow: hidden;
        }
        .hero-coupon-main::after {
            content: '';
            position: absolute;
            top: -10px;
            left: -10px;
            right: -10px;
            bottom: -10px;
            border: 2px dashed rgba(255,215,0,0.3);
            border-radius: 28px;
            pointer-events: none;
        }
        .coupon-value {
            font-size: 3.5rem;
            font-weight: 800;
            color: var(--gold-light);
            line-height: 1;
            margin-bottom: 8px;
            text-shadow: 0 2px 10px rgba(255,215,0,0.5);
        }
        .coupon-label {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--text-mint);
            margin-bottom: 25px;
            letter-spacing: 1px;
            text-transform: uppercase;
        }
        .btn-coupon {
            display: inline-block;
            background: linear-gradient(135deg, var(--gold), var(--gold-light));
            color: var(--bg-dark);
            padding: 14px 40px;
            border-radius: 32px;
            font-weight: 700;
            font-size: 1.1rem;
            box-shadow: 0 8px 24px rgba(255,215,0,0.4);
            transition: all var(--transition-smooth);
            border: none;
        }
        .btn-coupon:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(255,215,0,0.6);
            color: var(--bg-dark);
        }
        .hero-content {
            flex: 1;
        }
        .hero-content h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
            line-height: 1.25;
            letter-spacing: -0.5px;
        }
        .hero-content h1 .gold-highlight {
            color: var(--gold);
            position: relative;
        }
        .hero-content p {
            font-size: 1.15rem;
            color: var(--text-muted);
            margin-bottom: 25px;
            line-height: 1.7;
            max-width: 520px;
        }
        .hero-stats {
            display: flex;
            gap: 30px;
            margin-top: 20px;
        }
        .hero-stat {
            text-align: left;
        }
        .hero-stat .stat-number {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--gold);
            display: block;
            line-height: 1;
            margin-bottom: 4px;
        }
        .hero-stat .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* ===== SECTION STYLES ===== */
        .section-padding {
            padding: 70px 0;
        }
        .section-header {
            margin-bottom: 45px;
        }
        .section-header h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 8px;
            letter-spacing: -0.3px;
        }
        .section-header .gold-underline {
            display: inline-block;
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--gold-dark), var(--gold-light));
            border-radius: 2px;
            margin-top: 8px;
        }

        /* ===== TRICK CARDS ===== */
        .trick-card {
            background: linear-gradient(160deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            padding: 35px 30px;
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
            height: 100%;
        }
        .trick-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: linear-gradient(180deg, var(--gold-dark), var(--gold-light));
            opacity: 0;
            transition: opacity var(--transition-smooth);
        }
        .trick-card:hover {
            border-color: var(--gold);
            transform: translateY(-4px);
            box-shadow: var(--shadow-gold-strong);
        }
        .trick-card:hover::before {
            opacity: 1;
        }
        .trick-card .trick-icon {
            font-size: 2.5rem;
            color: var(--gold);
            margin-bottom: 18px;
        }
        .trick-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 10px;
            letter-spacing: -0.2px;
        }
        .trick-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 0;
            line-height: 1.6;
        }
        .trick-card .trick-badge {
            display: inline-block;
            background: rgba(211, 47, 47, 0.2);
            color: var(--red-light);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 20px;
            margin-top: 15px;
            letter-spacing: 0.5px;
            text-transform: uppercase;
        }

        /* ===== SCENARIO PANEL ===== */
        .scenario-panel {
            background: var(--bg-secondary);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-gold);
            overflow: hidden;
            display: flex;
        }
        .scenario-image {
            flex: 0 0 45%;
            background: url('/assets/images/coverpic/cover-3.jpg') center/cover no-repeat;
            min-height: 320px;
            position: relative;
        }
        .scenario-image .overlay-tag {
            position: absolute;
            top: 20px;
            left: 20px;
            background: var(--gold);
            color: var(--bg-dark);
            padding: 8px 18px;
            border-radius: 20px;
            font-weight: 700;
            font-size: 0.85rem;
        }
        .scenario-details {
            flex: 1;
            padding: 35px 35px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .scenario-details h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 15px;
        }
        .scenario-details p {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 20px;
            line-height: 1.7;
        }
        .scenario-list {
            list-style: none;
            padding: 0;
            margin: 0 0 20px 0;
        }
        .scenario-list li {
            padding: 6px 0;
            color: var(--text-mint);
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.95rem;
        }
        .scenario-list li i {
            color: var(--gold);
            font-size: 1rem;
        }

        /* ===== COMPARISON TABLE ===== */
        .comparison-block {
            background: var(--bg-primary);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-gold);
            padding: 30px;
        }
        .comparison-item {
            display: flex;
            align-items: center;
            padding: 16px 0;
            border-bottom: 1px solid rgba(255,255,255,0.05);
            gap: 20px;
        }
        .comparison-item:last-child {
            border-bottom: none;
        }
        .comparison-item .ci-label {
            flex: 0 0 160px;
            font-weight: 700;
            color: var(--text-white);
            font-size: 0.95rem;
        }
        .comparison-item .ci-wrong {
            flex: 1;
            color: var(--red-light);
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .comparison-item .ci-wrong i {
            color: var(--red);
        }
        .comparison-item .ci-right {
            flex: 1;
            color: #4CAF50;
            font-size: 0.9rem;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .comparison-item .ci-right i {
            color: var(--gold);
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-primary);
            border-radius: var(--radius-lg);
            padding: 50px 40px;
            border: 1px solid var(--border-gold);
        }
        .accordion-item {
            background: transparent;
            border: none;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .accordion-button {
            background: transparent !important;
            color: var(--text-white) !important;
            font-weight: 600;
            font-size: 1.05rem;
            padding: 22px 0;
            box-shadow: none !important;
        }
        .accordion-button::after {
            filter: brightness(0) invert(1);
        }
        .accordion-button:not(.collapsed) {
            color: var(--gold) !important;
            background: transparent !important;
        }
        .accordion-body {
            color: var(--text-muted);
            padding: 0 0 20px 0;
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* ===== CTA SECTION ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-dark) 100%);
            border-top: 1px solid var(--border-gold);
            border-bottom: 1px solid var(--border-gold);
            padding: 60px 0;
        }
        .cta-card {
            background: var(--bg-primary);
            border-radius: var(--radius-lg);
            padding: 45px 35px;
            border: 1px solid var(--border-gold);
            box-shadow: var(--shadow-gold);
            text-align: left;
            max-width: 800px;
            margin: 0 auto;
        }
        .cta-card h3 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 12px;
        }
        .cta-card p {
            color: var(--text-muted);
            margin-bottom: 25px;
            line-height: 1.7;
        }
        .btn-cta-primary {
            background: linear-gradient(135deg, var(--gold-dark), var(--gold));
            color: var(--bg-dark);
            padding: 14px 40px;
            border-radius: 28px;
            font-weight: 700;
            font-size: 1rem;
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-smooth);
            border: none;
            display: inline-block;
        }
        .btn-cta-primary:hover {
            background: linear-gradient(135deg, var(--gold), var(--gold-light));
            box-shadow: var(--shadow-gold-strong);
            transform: translateY(-2px);
            color: var(--bg-dark);
        }

        /* ===== FOOTER ===== */
        .site-footer {
            background: var(--bg-dark);
            border-top: 2px solid var(--border-gold);
            padding: 50px 0 30px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 35px;
            margin-bottom: 35px;
        }
        .footer-col h5 {
            color: var(--gold);
            font-weight: 700;
            margin-bottom: 15px;
            font-size: 1.05rem;
        }
        .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-muted);
            font-size: 0.9rem;
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--gold);
        }
        .badge-18 {
            display: inline-block;
            background: var(--red);
            color: var(--text-white);
            padding: 4px 12px;
            border-radius: 8px;
            font-weight: 800;
            font-size: 0.85rem;
            margin-top: 10px;
            border: 1px solid var(--gold);
        }
        .footer-bottom {
            text-align: center;
            padding-top: 25px;
            border-top: 1px solid rgba(255,255,255,0.06);
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        /* ===== FAB ===== */
        .fab-button {
            position: fixed;
            left: 1.5rem;
            bottom: 6rem;
            z-index: 1040;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--bg-dark) 0%, #1a0a0a 100%);
            border: 3px solid var(--gold);
            color: var(--gold);
            font-size: 1.4rem;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
            opacity: 0.7;
            transition: all var(--transition-smooth);
            cursor: pointer;
            animation: fabFloat 3s ease-in-out infinite;
        }
        .fab-button:hover {
            opacity: 1;
            transform: scale(1.1) rotate(360deg);
            box-shadow: 0 0 25px rgba(255, 215, 0, 0.5);
            color: var(--gold-light);
        }
        .fab-button:active {
            transform: scale(0.95) translateY(2px);
        }
        @keyframes fabFloat {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-8px); }
        }
        .fab-badge {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 16px;
            height: 16px;
            background: var(--red);
            border: 2px solid var(--gold);
            border-radius: 50%;
            animation: blinkBadge 1.2s ease-in-out infinite;
        }
        @keyframes blinkBadge {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }

        /* ===== RESPONSIVE ===== */
        @media (max-width: 1024px) {
            .hero-coupon-wall {
                flex-direction: column;
                gap: 30px;
            }
            .hero-coupon-main {
                flex: 0 0 auto;
                width: 100%;
                max-width: 420px;
                margin: 0 auto;
            }
            .hero-content h1 {
                font-size: 2.2rem;
            }
            .hero-content {
                text-align: center;
            }
            .hero-stats {
                justify-content: center;
            }
            .scenario-panel {
                flex-direction: column;
            }
            .scenario-image {
                min-height: 220px;
                flex: 0 0 auto;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 25px;
            }
        }
        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(4, 26, 15, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 16px 20px;
                gap: 4px;
                border-bottom: 2px solid var(--border-gold);
                box-shadow: var(--shadow-gold-strong);
            }
            .nav-menu.show {
                display: flex;
            }
            .navbar-toggler {
                display: block;
            }
            .nav-actions {
                margin-left: auto;
                gap: 8px;
            }
            .btn-login {
                padding: 7px 14px;
                font-size: 0.8rem;
            }
            .btn-signup {
                padding: 8px 16px;
                font-size: 0.8rem;
            }
            .hero-content h1 {
                font-size: 1.9rem;
            }
            .hero-coupon-main {
                padding: 35px 25px;
            }
            .coupon-value {
                font-size: 2.6rem;
            }
            .comparison-item {
                flex-wrap: wrap;
                gap: 10px;
            }
            .comparison-item .ci-label {
                flex: 0 0 100%;
                margin-bottom: 4px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .faq-section {
                padding: 30px 20px;
            }
            .section-padding {
                padding: 50px 0;
            }
        }
        @media (max-width: 520px) {
            .hero-content h1 {
                font-size: 1.6rem;
            }
            .hero-stats {
                flex-direction: column;
                gap: 12px;
                align-items: center;
            }
            .trick-card {
                padding: 25px 20px;
            }
            .fab-button {
                left: 0.8rem;
                bottom: 5rem;
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
            }
        }

/* roulang page: category2 */
:root {
            --bg-primary: #0A2E1C;
            --bg-secondary: #123E25;
            --bg-dark: #041A0F;
            --gold: #FFD700;
            --gold-light: #FFE55C;
            --gold-dark: #C5A059;
            --red: #D32F2F;
            --red-light: #EF5350;
            --text-white: #FFFFFF;
            --text-mint: #D1F2EB;
            --text-muted: #9BB8A8;
            --border-gold: rgba(255, 215, 0, 0.3);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.15);
            --shadow-gold-strong: 0 8px 32px rgba(255, 215, 0, 0.25);
            --radius-sm: 12px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            background-color: var(--bg-dark);
            color: var(--text-white);
            line-height: 1.65;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            padding-top: 68px;
        }

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

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

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

        button,
        .btn {
            cursor: pointer;
            font-family: inherit;
            transition: all var(--transition-smooth);
            border: none;
            outline: none;
        }

        button:focus-visible,
        .btn:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--gold);
            outline-offset: 3px;
            border-radius: 8px;
        }

        .container {
            width: 100%;
            max-width: 1240px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        .container-narrow {
            max-width: 960px;
        }

        /* ===== HEADER & NAVIGATION ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: rgba(10, 46, 28, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-gold);
            transition: background var(--transition-smooth);
        }

        .site-header.scrolled {
            background: rgba(4, 26, 15, 0.97);
            box-shadow: var(--shadow-gold);
        }

        .navbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
        }

        .navbar-brand {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--gold) !important;
            letter-spacing: -0.3px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .navbar-brand i {
            font-size: 1.5rem;
            color: var(--gold-light);
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-item {
            position: relative;
        }

        .nav-link {
            display: block;
            padding: 10px 16px;
            color: var(--text-mint);
            font-weight: 500;
            font-size: 0.95rem;
            border-radius: 8px;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

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

        .nav-link.active {
            font-weight: 600;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .btn-login {
            background: transparent;
            color: var(--text-mint);
            border: 1px solid var(--border-gold);
            padding: 9px 20px;
            border-radius: 24px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
        }

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

        .btn-signup {
            background: linear-gradient(135deg, var(--gold-dark), var(--gold));
            color: var(--bg-dark);
            padding: 10px 22px;
            border-radius: 24px;
            font-weight: 700;
            font-size: 0.9rem;
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-smooth);
            border: none;
        }

        .btn-signup:hover {
            background: linear-gradient(135deg, var(--gold), var(--gold-light));
            box-shadow: var(--shadow-gold-strong);
            transform: translateY(-1px);
            color: var(--bg-dark);
        }

        .btn-signup:active {
            transform: translateY(1px);
        }

        .navbar-toggler {
            display: none;
            background: transparent;
            border: 1px solid var(--border-gold);
            color: var(--text-mint);
            font-size: 1.5rem;
            padding: 6px 12px;
            border-radius: 10px;
            transition: all var(--transition-fast);
        }

        .navbar-toggler:hover {
            border-color: var(--gold);
            color: var(--gold);
        }

        /* ===== HERO CATEGORY ===== */
        .hero-category {
            background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-dark) 100%);
            padding: 80px 0 70px;
            position: relative;
            overflow: hidden;
        }

        .hero-category::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 50%;
            height: 100%;
            background: radial-gradient(ellipse at center, rgba(255, 215, 0, 0.06) 0%, transparent 70%);
            pointer-events: none;
        }

        .hero-category-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .hero-category-content h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.15;
            color: var(--text-white);
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }

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

        .hero-category-content .subtitle-lead {
            font-size: 1.15rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 520px;
        }

        .hero-category-stats {
            display: flex;
            gap: 30px;
            margin-bottom: 36px;
        }

        .stat-badge {
            text-align: left;
        }

        .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--gold);
            line-height: 1;
            display: block;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 6px;
            display: block;
        }

        .btn-hero-primary {
            display: inline-block;
            background: linear-gradient(135deg, var(--gold), var(--gold-light));
            color: var(--bg-dark);
            padding: 14px 36px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 1.05rem;
            box-shadow: var(--shadow-gold-strong);
            transition: all var(--transition-smooth);
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .btn-hero-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 40px rgba(255, 215, 0, 0.35);
            color: var(--bg-dark);
        }

        .btn-hero-outline {
            display: inline-block;
            background: transparent;
            color: var(--text-mint);
            border: 2px solid var(--border-gold);
            padding: 14px 36px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 1.05rem;
            margin-left: 16px;
            transition: all var(--transition-fast);
        }

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

        .hero-image-wrapper {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-gold-strong);
            border: 2px solid var(--border-gold);
        }

        .hero-image-wrapper img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }

        .tag-float {
            position: absolute;
            bottom: 20px;
            left: 20px;
            background: rgba(4, 26, 15, 0.85);
            backdrop-filter: blur(12px);
            padding: 10px 18px;
            border-radius: 20px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--gold);
            border: 1px solid var(--border-gold);
        }

        /* ===== SECTION GENERICS ===== */
        section {
            padding: 70px 0;
        }

        .section-header {
            margin-bottom: 50px;
        }

        .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--gold);
            background: rgba(255, 215, 0, 0.1);
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 14px;
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 16px;
            letter-spacing: -0.3px;
        }

        .section-desc {
            font-size: 1.1rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 680px;
        }

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

        .benefit-card {
            background: linear-gradient(135deg, rgba(18, 62, 37, 0.5), rgba(10, 46, 28, 0.7));
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            transition: all var(--transition-smooth);
            position: relative;
        }

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

        .benefit-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: rgba(255, 215, 0, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--gold);
            margin-bottom: 18px;
        }

        .benefit-card h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .benefit-card p {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== HOW IT WORKS / PROCESS ===== */
        .process-steps {
            display: flex;
            gap: 28px;
            justify-content: space-between;
            position: relative;
        }

        .process-steps::before {
            content: '';
            position: absolute;
            top: 30px;
            left: 40px;
            right: 40px;
            height: 2px;
            background: var(--border-gold);
            z-index: 0;
        }

        .step-item {
            flex: 1;
            position: relative;
            z-index: 1;
            text-align: center;
        }

        .step-circle {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: var(--bg-secondary);
            border: 3px solid var(--border-gold);
            margin: 0 auto 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--gold);
            transition: all var(--transition-fast);
            background: var(--bg-dark);
        }

        .step-item:hover .step-circle {
            border-color: var(--gold);
            box-shadow: 0 0 24px rgba(255, 215, 0, 0.3);
            background: var(--bg-primary);
        }

        .step-item h4 {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 8px;
        }

        .step-item p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* ===== TECHNIQUE LIST (ASYMMETRICAL) ===== */
        .technique-block {
            display: grid;
            grid-template-columns: 1fr 1.3fr;
            gap: 50px;
            align-items: start;
            margin-bottom: 60px;
        }

        .technique-block.reverse {
            grid-template-columns: 1.3fr 1fr;
        }

        .technique-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-gold);
        }

        .technique-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }

        .technique-detail h3 {
            font-size: 1.7rem;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .technique-detail .desc {
            color: var(--text-muted);
            font-size: 1rem;
            line-height: 1.8;
            margin-bottom: 22px;
        }

        .check-list {
            list-style: none;
            padding: 0;
            margin: 0 0 24px;
        }

        .check-list li {
            padding: 8px 0 8px 30px;
            position: relative;
            color: var(--text-mint);
            font-weight: 500;
            font-size: 0.95rem;
        }

        .check-list li::before {
            content: '\f00c';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            left: 0;
            color: var(--gold);
            font-size: 0.85rem;
        }

        .btn-outline-sm {
            display: inline-block;
            border: 1px solid var(--gold);
            color: var(--gold);
            padding: 10px 24px;
            border-radius: 24px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
        }

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

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-secondary);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            overflow: hidden;
            transition: all var(--transition-fast);
        }

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

        .faq-question {
            padding: 20px 28px;
            font-weight: 700;
            font-size: 1.05rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
        }

        .faq-question i {
            transition: transform var(--transition-fast);
            color: var(--gold);
        }

        .faq-answer {
            padding: 0 28px 20px;
            color: var(--text-muted);
            line-height: 1.7;
            display: none;
        }

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

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

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--bg-primary), var(--bg-dark));
            border-top: 2px solid var(--border-gold);
            border-bottom: 2px solid var(--border-gold);
            padding: 60px 0;
            text-align: center;
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 14px;
        }

        .cta-section p {
            color: var(--text-muted);
            margin-bottom: 28px;
            font-size: 1.05rem;
        }

        .btn-cta-large {
            display: inline-block;
            background: linear-gradient(135deg, var(--red), var(--red-light));
            color: white;
            padding: 16px 48px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 1.15rem;
            box-shadow: 0 8px 30px rgba(211, 47, 47, 0.4);
            transition: all var(--transition-smooth);
            text-transform: uppercase;
        }

        .btn-cta-large:hover {
            transform: scale(1.03);
            box-shadow: 0 12px 40px rgba(211, 47, 47, 0.6);
            color: white;
        }

        /* ===== FOOTER ===== */
        .site-footer {
            background: var(--bg-dark);
            border-top: 1px solid var(--border-gold);
            padding: 50px 0 20px;
            color: var(--text-muted);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            margin-bottom: 30px;
        }

        .footer-col h5 {
            color: var(--text-white);
            font-weight: 700;
            margin-bottom: 16px;
            font-size: 1rem;
        }

        .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-muted);
            font-size: 0.9rem;
            transition: color var(--transition-fast);
        }

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

        .badge-18 {
            background: var(--red);
            color: white;
            padding: 4px 12px;
            border-radius: 6px;
            font-weight: 700;
            font-size: 0.8rem;
            display: inline-block;
            margin-top: 10px;
        }

        .footer-bottom {
            border-top: 1px solid var(--border-gold);
            padding-top: 20px;
            text-align: center;
            font-size: 0.85rem;
        }

        /* FAB LEFT */
        .fab-left {
            position: fixed;
            left: 20px;
            bottom: 96px;
            z-index: 1040;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: linear-gradient(135deg, #C5A059, #FFD700);
            border: 2px solid var(--gold-light);
            color: var(--bg-dark);
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 24px rgba(255, 215, 0, 0.4);
            cursor: pointer;
            transition: all var(--transition-smooth);
            animation: floatGentle 3s ease-in-out infinite;
        }

        .fab-left:hover {
            transform: scale(1.1);
            box-shadow: 0 8px 36px rgba(255, 215, 0, 0.6);
        }

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

        /* ===== RESPONSIVE ===== */
        @media (max-width: 1024px) {
            .hero-category-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .benefit-grid {
                grid-template-columns: 1fr 1fr;
            }
            .technique-block,
            .technique-block.reverse {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .process-steps {
                flex-wrap: wrap;
                gap: 24px;
            }
            .process-steps::before {
                display: none;
            }
            .step-item {
                flex: 1 1 40%;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .section-title {
                font-size: 1.9rem;
            }
            .hero-category-content h1 {
                font-size: 2.2rem;
            }
        }

        @media (max-width: 768px) {
            .navbar-toggler {
                display: block;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(4, 26, 15, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 16px 20px;
                gap: 4px;
                border-bottom: 2px solid var(--border-gold);
                box-shadow: var(--shadow-gold-strong);
                z-index: 1049;
            }
            .nav-menu.show {
                display: flex;
            }
            .nav-actions {
                margin-left: auto;
                gap: 6px;
            }
            .nav-actions .btn-login,
            .nav-actions .btn-signup {
                padding: 8px 16px;
                font-size: 0.8rem;
            }
            .hero-category {
                padding: 50px 0 40px;
            }
            .hero-category-content h1 {
                font-size: 2rem;
            }
            .hero-category-stats {
                gap: 16px;
            }
            .benefit-grid {
                grid-template-columns: 1fr;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            section {
                padding: 50px 0;
            }
        }

        @media (max-width: 520px) {
            .hero-category-content h1 {
                font-size: 1.7rem;
            }
            .btn-hero-primary,
            .btn-hero-outline {
                display: block;
                width: 100%;
                margin: 0 0 12px;
                text-align: center;
            }
            .stat-number {
                font-size: 1.8rem;
            }
        }

/* roulang page: category3 */
:root {
            --bg-primary: #0A2E1C;
            --bg-secondary: #123E25;
            --bg-dark: #041A0F;
            --gold: #FFD700;
            --gold-light: #FFE55C;
            --gold-dark: #C5A059;
            --red: #D32F2F;
            --red-light: #EF5350;
            --text-white: #FFFFFF;
            --text-mint: #D1F2EB;
            --text-muted: #9BB8A8;
            --border-gold: rgba(255, 215, 0, 0.3);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.15);
            --shadow-gold-strong: 0 8px 32px rgba(255, 215, 0, 0.25);
            --radius-sm: 12px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            background-color: var(--bg-dark);
            color: var(--text-white);
            line-height: 1.65;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            padding-top: 68px;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--gold);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, .btn {
            cursor: pointer;
            font-family: inherit;
            transition: all var(--transition-smooth);
            border: none;
            outline: none;
        }
        button:focus-visible, .btn:focus-visible, a:focus-visible {
            outline: 2px solid var(--gold);
            outline-offset: 3px;
            border-radius: 8px;
        }
        .container {
            width: 100%;
            max-width: 1240px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        .container-narrow {
            max-width: 960px;
        }
        /* ===== HEADER & NAVIGATION ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: rgba(10, 46, 28, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-gold);
            transition: background var(--transition-smooth);
        }
        .site-header.scrolled {
            background: rgba(4, 26, 15, 0.97);
            box-shadow: var(--shadow-gold);
        }
        .navbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
        }
        .navbar-brand {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--gold) !important;
            letter-spacing: -0.3px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .navbar-brand i {
            font-size: 1.5rem;
            color: var(--gold-light);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-item {
            position: relative;
        }
        .nav-link {
            display: block;
            padding: 10px 16px;
            color: var(--text-mint);
            font-weight: 500;
            font-size: 0.95rem;
            border-radius: 8px;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-link:hover,
        .nav-link.active {
            color: var(--gold);
            background: rgba(255, 215, 0, 0.08);
        }
        .nav-link.active {
            font-weight: 600;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .btn-login {
            background: transparent;
            color: var(--text-mint);
            border: 1px solid var(--border-gold);
            padding: 9px 20px;
            border-radius: 24px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
        }
        .btn-login:hover {
            border-color: var(--gold);
            color: var(--gold);
            background: rgba(255, 215, 0, 0.06);
        }
        .btn-signup {
            background: linear-gradient(135deg, var(--gold-dark), var(--gold));
            color: var(--bg-dark);
            padding: 10px 22px;
            border-radius: 24px;
            font-weight: 700;
            font-size: 0.9rem;
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-smooth);
            border: none;
        }
        .btn-signup:hover {
            background: linear-gradient(135deg, var(--gold), var(--gold-light));
            box-shadow: var(--shadow-gold-strong);
            transform: translateY(-1px);
            color: var(--bg-dark);
        }
        .btn-signup:active {
            transform: translateY(1px);
        }
        .navbar-toggler {
            display: none;
            background: transparent;
            border: 1px solid var(--border-gold);
            color: var(--text-mint);
            font-size: 1.5rem;
            padding: 6px 12px;
            border-radius: 10px;
            transition: all var(--transition-fast);
        }
        .navbar-toggler:hover {
            border-color: var(--gold);
            color: var(--gold);
        }

        /* ===== HERO ===== */
        .page-hero {
            background: linear-gradient(135deg, rgba(4, 26, 15, 0.9) 0%, rgba(18, 62, 37, 0.85) 100%), url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
            padding: 100px 0 80px;
            position: relative;
            border-bottom: 1px solid var(--border-gold);
        }
        .page-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--gold), transparent);
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }
        .hero-content {
            text-align: left;
        }
        .hero-content .badge {
            background: rgba(211, 47, 47, 0.15);
            color: var(--red-light);
            border: 1px solid var(--red);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 20px;
            display: inline-block;
        }
        .hero-content h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 20px;
            line-height: 1.2;
            letter-spacing: -0.5px;
        }
        .hero-content h1 span {
            color: var(--gold);
        }
        .hero-content p {
            font-size: 1.15rem;
            color: var(--text-mint);
            margin-bottom: 30px;
            line-height: 1.7;
        }
        .btn-cta {
            background: linear-gradient(135deg, var(--gold-dark), var(--gold));
            color: var(--bg-dark);
            padding: 14px 32px;
            border-radius: 28px;
            font-weight: 700;
            font-size: 1rem;
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-smooth);
            display: inline-block;
            text-align: center;
        }
        .btn-cta:hover {
            background: linear-gradient(135deg, var(--gold), var(--gold-light));
            box-shadow: var(--shadow-gold-strong);
            transform: translateY(-2px);
            color: var(--bg-dark);
        }
        .faux-panel {
            background: rgba(4, 26, 15, 0.7);
            backdrop-filter: blur(10px);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 30px;
            list-style: none;
            margin: 0;
        }
        .faux-panel h4 {
            color: var(--gold);
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .stat-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 0;
            border-bottom: 1px solid rgba(255,215,0,0.08);
            color: var(--text-mint);
            font-size: 0.95rem;
        }
        .stat-row:last-child {
            border-bottom: none;
        }
        .stat-value {
            font-weight: 700;
            color: var(--gold-light);
        }
        .badge-hot {
            background: var(--red);
            color: white;
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 0.7rem;
            margin-left: 6px;
        }

        /* ===== SECTIONS ===== */
        section {
            padding: 80px 0;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 15px;
            letter-spacing: -0.3px;
        }
        .section-title span {
            color: var(--gold);
        }
        .section-desc {
            color: var(--text-muted);
            font-size: 1.1rem;
            margin-bottom: 50px;
            max-width: 700px;
        }
        .bg-secondary {
            background-color: var(--bg-secondary);
        }

        /* ===== STRATEGY CARDS ===== */
        .strategy-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
            gap: 24px;
            margin-top: 30px;
        }
        .strategy-card {
            background: rgba(10, 46, 28, 0.6);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            padding: 30px;
            display: flex;
            gap: 20px;
            align-items: flex-start;
            transition: all var(--transition-smooth);
        }
        .strategy-card:hover {
            border-color: var(--gold);
            box-shadow: var(--shadow-gold);
            transform: translateY(-3px);
        }
        .card-icon {
            font-size: 2.2rem;
            color: var(--gold);
            flex-shrink: 0;
            background: rgba(255,215,0,0.1);
            width: 60px;
            height: 60px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
        }
        .card-text h5 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 8px;
        }
        .card-text p {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== STEP LIST ===== */
        .step-list {
            list-style: none;
            padding: 0;
            margin: 0;
            counter-reset: step-counter;
        }
        .step-item {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            padding: 25px 0;
            border-bottom: 1px solid var(--border-gold);
            text-align: left;
        }
        .step-item:last-child {
            border-bottom: none;
        }
        .step-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--gold);
            flex-shrink: 0;
            width: 50px;
            text-align: center;
        }
        .step-content h4 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 6px;
        }
        .step-content p {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.65;
        }

        /* ===== FAQ ===== */
        .accordion-item {
            background: transparent;
            border: 1px solid var(--border-gold);
            margin-bottom: 12px;
            border-radius: var(--radius-sm);
            overflow: hidden;
        }
        .accordion-button {
            background: rgba(10, 46, 28, 0.6);
            color: var(--text-mint);
            font-weight: 600;
            font-size: 1.05rem;
            padding: 18px 24px;
            border: none;
            box-shadow: none;
        }
        .accordion-button:not(.collapsed) {
            background: rgba(255, 215, 0, 0.08);
            color: var(--gold);
            box-shadow: none;
        }
        .accordion-button:focus {
            box-shadow: 0 0 0 2px var(--gold);
            border-color: var(--gold);
        }
        .accordion-body {
            background: rgba(4, 26, 15, 0.5);
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
            padding: 0 24px 20px;
        }

        /* ===== CTA SECTION ===== */
        .cta-block {
            background: linear-gradient(135deg, var(--bg-secondary), var(--bg-dark));
            border: 2px solid var(--gold-dark);
            border-radius: var(--radius-lg);
            padding: 50px;
            text-align: center;
        }
        .cta-block h3 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 12px;
        }

        /* ===== FOOTER ===== */
        .site-footer {
            background: var(--bg-dark);
            border-top: 1px solid var(--border-gold);
            padding: 50px 0 30px;
            font-size: 0.9rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            margin-bottom: 40px;
        }
        .footer-col h5 {
            color: var(--gold);
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 16px;
        }
        .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-muted);
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--gold);
        }
        .badge-18 {
            background: var(--red);
            color: white;
            font-weight: 800;
            padding: 6px 14px;
            border-radius: 6px;
            display: inline-block;
            margin-top: 12px;
            font-size: 0.85rem;
        }
        .footer-bottom {
            text-align: center;
            color: var(--text-muted);
            border-top: 1px solid var(--border-gold);
            padding-top: 20px;
        }

        /* FAB */
        .fab-floating {
            position: fixed;
            left: 20px;
            bottom: 100px;
            z-index: 1090;
            background: linear-gradient(135deg, var(--bg-primary), var(--bg-secondary));
            border: 2px solid var(--gold-dark);
            border-radius: 50%;
            width: 56px;
            height: 56px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--gold);
            font-size: 1.5rem;
            box-shadow: var(--shadow-gold-strong);
            transition: all 0.3s ease;
            cursor: pointer;
            animation: float 3s infinite ease-in-out;
        }
        .fab-floating:hover {
            transform: scale(1.1);
            box-shadow: 0 0 25px rgba(255, 215, 0, 0.4);
        }
        @keyframes float {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }

        /* RESPONSIVE */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .hero-content h1 {
                font-size: 2.2rem;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .navbar-toggler {
                display: block;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(4, 26, 15, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 16px 20px;
                gap: 4px;
                border-bottom: 2px solid var(--border-gold);
                box-shadow: var(--shadow-gold-strong);
            }
            .nav-menu.show {
                display: flex;
            }
            .strategy-grid {
                grid-template-columns: 1fr;
            }
            .cta-block {
                padding: 30px 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .page-hero {
                padding: 80px 0 60px;
            }
            .hero-content h1 {
                font-size: 1.9rem;
            }
        }

/* roulang page: category4 */
:root {
            --bg-primary: #0A2E1C;
            --bg-secondary: #123E25;
            --bg-dark: #041A0F;
            --gold: #FFD700;
            --gold-light: #FFE55C;
            --gold-dark: #C5A059;
            --red: #D32F2F;
            --red-light: #EF5350;
            --text-white: #FFFFFF;
            --text-mint: #D1F2EB;
            --text-muted: #9BB8A8;
            --border-gold: rgba(255, 215, 0, 0.3);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.15);
            --shadow-gold-strong: 0 8px 32px rgba(255, 215, 0, 0.25);
            --radius-sm: 12px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            background-color: var(--bg-dark);
            color: var(--text-white);
            line-height: 1.65;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            padding-top: 72px;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--gold);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, .btn {
            cursor: pointer;
            font-family: inherit;
            transition: all var(--transition-smooth);
            border: none;
            outline: none;
        }
        button:focus-visible, .btn:focus-visible, a:focus-visible {
            outline: 2px solid var(--gold);
            outline-offset: 3px;
            border-radius: 8px;
        }
        .container {
            width: 100%;
            max-width: 1240px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        .container-narrow {
            max-width: 960px;
        }
        
        /* ===== HEADER & NAVIGATION ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: rgba(10, 46, 28, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-gold);
            transition: background var(--transition-smooth);
        }
        .site-header.scrolled {
            background: rgba(4, 26, 15, 0.97);
            box-shadow: var(--shadow-gold);
        }
        .navbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            flex-wrap: wrap;
        }
        .navbar-brand {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--gold) !important;
            letter-spacing: -0.3px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .navbar-brand i {
            font-size: 1.5rem;
            color: var(--gold-light);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-item {
            position: relative;
        }
        .nav-link {
            display: block;
            padding: 10px 16px;
            color: var(--text-mint);
            font-weight: 500;
            font-size: 0.95rem;
            border-radius: 8px;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-link:hover,
        .nav-link.active {
            color: var(--gold);
            background: rgba(255, 215, 0, 0.08);
        }
        .nav-link.active {
            font-weight: 600;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .btn-login {
            background: transparent;
            color: var(--text-mint);
            border: 1px solid var(--border-gold);
            padding: 9px 20px;
            border-radius: 24px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
        }
        .btn-login:hover {
            border-color: var(--gold);
            color: var(--gold);
            background: rgba(255, 215, 0, 0.06);
        }
        .btn-signup {
            background: linear-gradient(135deg, var(--gold-dark), var(--gold));
            color: var(--bg-dark);
            padding: 10px 22px;
            border-radius: 24px;
            font-weight: 700;
            font-size: 0.9rem;
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-smooth);
            border: none;
        }
        .btn-signup:hover {
            background: linear-gradient(135deg, var(--gold), var(--gold-light));
            box-shadow: var(--shadow-gold-strong);
            transform: translateY(-1px);
            color: var(--bg-dark);
        }
        .btn-signup:active {
            transform: translateY(1px);
        }
        .navbar-toggler {
            display: none;
            background: transparent;
            border: 1px solid var(--border-gold);
            color: var(--text-mint);
            font-size: 1.5rem;
            padding: 6px 12px;
            border-radius: 10px;
            transition: all var(--transition-fast);
        }
        .navbar-toggler:hover {
            border-color: var(--gold);
            color: var(--gold);
        }
        
        /* ===== PAGE HERO ===== */
        .page-hero {
            background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-dark) 100%);
            padding: 60px 0 50px;
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--border-gold);
        }
        .page-hero::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 50%;
            height: 100%;
            background: radial-gradient(circle at center, rgba(255,215,0,0.05) 0%, transparent 70%);
            pointer-events: none;
        }
        .page-hero h1 {
            font-size: 2.5rem;
            font-weight: 900;
            color: var(--gold);
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .page-hero .lead {
            font-size: 1.15rem;
            color: var(--text-mint);
            max-width: 700px;
            line-height: 1.7;
        }
        .hero-visual {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-gold-strong);
            border: 2px solid var(--border-gold);
        }
        .hero-visual img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }
        
        /* ===== MISTAKE CARDS ===== */
        .section-block {
            padding: 60px 0;
        }
        .section-block h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--gold-light);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-block .section-subtitle {
            color: var(--text-muted);
            font-size: 1.05rem;
            margin-bottom: 40px;
        }
        .mistake-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            height: 100%;
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }
        .mistake-card:hover {
            border-color: var(--gold);
            box-shadow: var(--shadow-gold);
            transform: translateY(-4px);
        }
        .mistake-card .mistake-number {
            font-size: 3.5rem;
            font-weight: 900;
            color: rgba(255,215,0,0.1);
            position: absolute;
            top: 10px;
            right: 20px;
            line-height: 1;
        }
        .mistake-card h3 {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--gold);
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }
        .mistake-card p {
            color: var(--text-mint);
            font-size: 0.95rem;
            line-height: 1.65;
            position: relative;
            z-index: 1;
            margin-bottom: 0;
        }
        .mistake-card .tag-danger {
            display: inline-block;
            background: var(--red);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 12px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        
        /* ===== TABLE COMPARISON ===== */
        .comparison-table {
            background: var(--bg-secondary);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-gold);
        }
        .comparison-table .table-header {
            background: rgba(255,215,0,0.08);
            padding: 16px 20px;
            font-weight: 700;
            color: var(--gold);
            font-size: 1rem;
        }
        .comparison-table .table-row {
            padding: 18px 20px;
            border-top: 1px solid rgba(255,215,0,0.1);
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            transition: background var(--transition-fast);
        }
        .comparison-table .table-row:hover {
            background: rgba(255,215,0,0.03);
        }
        .comparison-table .wrong-col {
            flex: 1;
            color: var(--red-light);
            min-width: 200px;
        }
        .comparison-table .wrong-col i {
            margin-right: 8px;
        }
        .comparison-table .correct-col {
            flex: 1;
            color: var(--text-mint);
            min-width: 200px;
        }
        .comparison-table .correct-col i {
            color: var(--gold);
            margin-right: 8px;
        }
        
        /* ===== FAQ ACCORDION ===== */
        .accordion-item {
            background: var(--bg-secondary);
            border: 1px solid var(--border-gold);
            margin-bottom: 12px;
            border-radius: var(--radius-md) !important;
            overflow: hidden;
        }
        .accordion-button {
            background: transparent;
            color: var(--text-mint);
            font-weight: 600;
            font-size: 1rem;
            padding: 18px 24px;
            box-shadow: none !important;
            transition: all var(--transition-fast);
            border-radius: var(--radius-md) !important;
        }
        .accordion-button:not(.collapsed) {
            background: rgba(255,215,0,0.06);
            color: var(--gold);
            box-shadow: none;
        }
        .accordion-button::after {
            filter: brightness(0) invert(1);
        }
        .accordion-body {
            padding: 0 24px 20px;
            color: var(--text-mint);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        
        /* ===== CTA SECTION ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--bg-primary) 0%, #062012 100%);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 50px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
            opacity: 0.1;
            z-index: 0;
        }
        .cta-section h2, .cta-section p, .cta-section .btn {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--gold-light);
        }
        .cta-section p {
            color: var(--text-mint);
            font-size: 1.1rem;
            margin-bottom: 24px;
        }
        .btn-gold {
            background: linear-gradient(135deg, var(--gold-dark), var(--gold));
            color: var(--bg-dark);
            padding: 14px 36px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.05rem;
            box-shadow: var(--shadow-gold);
            transition: all var(--transition-smooth);
            border: none;
        }
        .btn-gold:hover {
            background: linear-gradient(135deg, var(--gold), var(--gold-light));
            box-shadow: var(--shadow-gold-strong);
            transform: translateY(-2px);
            color: var(--bg-dark);
        }
        
        /* ===== FOOTER ===== */
        .site-footer {
            background: var(--bg-dark);
            border-top: 1px solid var(--border-gold);
            padding: 50px 0 30px;
            margin-top: 20px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
        }
        .footer-col h5 {
            color: var(--gold);
            font-weight: 700;
            margin-bottom: 16px;
            font-size: 1rem;
        }
        .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-muted);
            font-size: 0.9rem;
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--gold);
        }
        .badge-18 {
            display: inline-block;
            background: var(--red);
            color: #fff;
            font-weight: 800;
            font-size: 0.8rem;
            padding: 4px 10px;
            border-radius: 20px;
            margin-top: 10px;
        }
        .footer-bottom {
            text-align: center;
            padding-top: 24px;
            margin-top: 30px;
            border-top: 1px solid rgba(255,215,0,0.15);
            color: var(--text-muted);
            font-size: 0.85rem;
        }
        
        /* ===== FAB ===== */
        .fab-float {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 1060;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--gold-dark), var(--gold));
            color: var(--bg-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            box-shadow: 0 4px 20px rgba(255,215,0,0.4);
            transition: all var(--transition-smooth);
            border: 2px solid var(--gold-light);
            animation: floatUpDown 2.5s ease-in-out infinite;
        }
        .fab-float:hover {
            transform: scale(1.15);
            box-shadow: 0 8px 30px rgba(255,215,0,0.6);
        }
        @keyframes floatUpDown {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }
        
        /* ===== RESPONSIVE ===== */
        @media (max-width: 1024px) {
            .nav-menu {
                gap: 2px;
            }
            .nav-link {
                padding: 8px 12px;
                font-size: 0.85rem;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            body {
                padding-top: 64px;
            }
            .navbar {
                min-height: 60px;
            }
            .navbar-toggler {
                display: block;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(4, 26, 15, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 16px 20px;
                gap: 4px;
                border-bottom: 2px solid var(--border-gold);
                box-shadow: var(--shadow-gold-strong);
                border-radius: 0 0 var(--radius-md) var(--radius-md);
            }
            .nav-menu.show {
                display: flex;
            }
            .nav-actions {
                gap: 6px;
            }
            .btn-login, .btn-signup {
                padding: 7px 14px;
                font-size: 0.8rem;
            }
            .page-hero h1 {
                font-size: 1.8rem;
            }
            .page-hero .lead {
                font-size: 1rem;
            }
            .section-block {
                padding: 40px 0;
            }
            .section-block h2 {
                font-size: 1.5rem;
            }
            .mistake-card {
                padding: 20px 16px;
            }
            .cta-section {
                padding: 30px 20px;
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .comparison-table .table-row {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }
        @media (max-width: 520px) {
            .navbar-brand {
                font-size: 1rem;
            }
            .navbar-brand i {
                font-size: 1.2rem;
            }
            .btn-login, .btn-signup {
                padding: 6px 10px;
                font-size: 0.75rem;
            }
            .page-hero h1 {
                font-size: 1.5rem;
            }
        }