/* roulang page: index */
:root {
            --bg-deep: #051F14;
            --bg-forest: #0B2E1E;
            --gold-primary: #F59E0B;
            --gold-light: #FCD34D;
            --gold-gradient: linear-gradient(135deg, #F59E0B 0%, #FCD34D 100%);
            --red-dragon: #DC2626;
            --text-primary: #F8FAFC;
            --text-secondary: #D1FAE5;
            --text-muted: #A3A375;
            --card-bg: rgba(11, 46, 30, 0.7);
            --card-border: rgba(245, 158, 11, 0.3);
            --shadow-gold: 0 4px 24px rgba(245, 158, 11, 0.2);
            --shadow-gold-hover: 0 8px 40px rgba(245, 158, 11, 0.4);
            --border-radius: 16px;
            --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background-color: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button, input {
            font-family: inherit;
        }

        .btn {
            border-radius: 50px;
            padding: 12px 32px;
            font-weight: 600;
            letter-spacing: 0.3px;
            transition: var(--transition-base);
            text-transform: none;
            border: 2px solid transparent;
            position: relative;
            overflow: hidden;
        }

        .btn-primary-gold {
            background: var(--gold-gradient);
            color: var(--bg-deep);
            border: none;
            font-weight: 700;
            box-shadow: var(--shadow-gold);
        }

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

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

        .btn-outline-gold:hover {
            background: var(--gold-primary);
            color: var(--bg-deep);
            border-color: var(--gold-primary);
        }

        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .section-padding {
            padding: 80px 0;
        }

        /* Header / Navigation */
        .navbar-custom {
            background: rgba(5, 31, 20, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--card-border);
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 1030;
            transition: var(--transition-base);
        }

        .navbar-custom .navbar-brand {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--gold-primary);
            letter-spacing: -0.3px;
        }

        .navbar-custom .nav-link {
            color: var(--text-secondary);
            font-weight: 500;
            margin: 0 6px;
            padding: 8px 18px !important;
            border-radius: 50px;
            transition: var(--transition-base);
        }

        .navbar-custom .nav-link:hover,
        .navbar-custom .nav-link.active {
            color: var(--gold-primary);
            background: rgba(245, 158, 11, 0.08);
        }

        .nav-auth-btns .btn {
            padding: 10px 24px;
            font-size: 0.95rem;
        }

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

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(245, 158, 11, 1)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* Hero Section - Coupon Wall */
        .hero-coupon {
            position: relative;
            background: radial-gradient(ellipse at 20% 30%, #0B2E1E 0%, #051F14 70%);
            padding: 100px 0 80px;
            overflow: hidden;
        }

        .hero-coupon::before {
            content: '';
            position: absolute;
            top: -200px;
            right: -300px;
            width: 700px;
            height: 700px;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .main-coupon-card {
            background: linear-gradient(135deg, #FCD34D 0%, #F59E0B 100%);
            border-radius: 24px;
            padding: 48px;
            position: relative;
            color: var(--bg-deep);
            box-shadow: 0 20px 60px rgba(245, 158, 11, 0.4);
            text-align: center;
            overflow: hidden;
            border: 3px dashed rgba(5, 31, 20, 0.3);
        }

        .main-coupon-card::after {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(255,255,255,0.3) 0%, transparent 60%);
            animation: rotateGlow 8s linear infinite;
            pointer-events: none;
        }

        @keyframes rotateGlow {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        .coupon-badge {
            display: inline-block;
            background: var(--red-dragon);
            color: #fff;
            padding: 8px 20px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.9rem;
            letter-spacing: 1px;
            margin-bottom: 20px;
            position: relative;
            z-index: 1;
        }

        .main-coupon-card h1 {
            font-size: 3rem;
            font-weight: 900;
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
            line-height: 1.2;
            color: #051F14;
        }

        .main-coupon-card .hero-stats {
            display: flex;
            justify-content: center;
            gap: 40px;
            margin-top: 32px;
            position: relative;
            z-index: 1;
        }

        .stat-item {
            text-align: center;
        }

        .stat-number {
            font-size: 2rem;
            font-weight: 900;
            color: var(--bg-deep);
        }

        .stat-label {
            font-size: 0.85rem;
            opacity: 0.8;
            color: var(--bg-deep);
        }

        /* Section Titles */
        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 16px;
            color: var(--text-primary);
            line-height: 1.3;
        }

        .section-subtitle {
            color: var(--text-muted);
            font-size: 1.05rem;
            margin-bottom: 48px;
            max-width: 700px;
        }

        .gold-accent {
            color: var(--gold-primary);
        }

        /* Cards */
        .card-custom {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--border-radius);
            padding: 28px;
            transition: var(--transition-base);
            height: 100%;
            backdrop-filter: blur(10px);
            position: relative;
            overflow: hidden;
        }

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

        .card-tag {
            display: inline-block;
            background: rgba(220, 38, 38, 0.2);
            color: #EF4444;
            padding: 4px 12px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.5px;
            border: 1px solid rgba(220, 38, 38, 0.4);
        }

        /* Hot Topics Tags */
        .topic-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .topic-tag {
            display: inline-block;
            padding: 10px 24px;
            background: rgba(245, 158, 11, 0.08);
            border: 1px solid var(--card-border);
            border-radius: 50px;
            color: var(--gold-primary);
            font-weight: 600;
            transition: var(--transition-base);
        }

        .topic-tag:hover {
            background: rgba(245, 158, 11, 0.2);
            border-color: var(--gold-primary);
            color: var(--gold-light);
        }

        /* News List */
        .news-item {
            border-bottom: 1px solid var(--card-border);
            padding: 20px 0;
            transition: var(--transition-base);
        }

        .news-item:hover {
            padding-left: 10px;
            border-color: var(--gold-primary);
        }

        .news-item .date {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 6px;
        }

        .news-item .title {
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            display: block;
        }

        .news-item .excerpt {
            color: var(--text-secondary);
            font-size: 0.9rem;
        }

        /* Media Grid */
        .media-card {
            position: relative;
            border-radius: var(--border-radius);
            overflow: hidden;
            aspect-ratio: 16/9;
            background: var(--bg-forest);
        }

        .media-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

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

        .media-duration {
            position: absolute;
            bottom: 12px;
            right: 12px;
            background: rgba(0,0,0,0.8);
            color: #fff;
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 0.8rem;
            font-weight: 600;
        }

        /* Data Analysis */
        .data-highlight-box {
            background: linear-gradient(135deg, rgba(245, 158, 11, 0.08) 0%, rgba(245, 158, 11, 0.02) 100%);
            border: 1px solid var(--card-border);
            border-radius: var(--border-radius);
            padding: 36px;
            text-align: center;
        }

        .data-value {
            font-size: 3rem;
            font-weight: 900;
            color: var(--gold-primary);
        }

        /* Security Section */
        .security-icon {
            font-size: 3rem;
            color: var(--gold-primary);
            margin-bottom: 16px;
        }

        /* Footer */
        .footer-custom {
            background: #030F0A;
            border-top: 1px solid var(--card-border);
            padding: 60px 0 30px;
        }

        .footer-brand {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--gold-primary);
        }

        .footer-link {
            color: var(--text-secondary);
            transition: var(--transition-base);
        }

        .footer-link:hover {
            color: var(--gold-primary);
        }

        .footer-bottom {
            border-top: 1px solid var(--card-border);
            margin-top: 40px;
            padding-top: 20px;
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        /* FAB */
        .fab-custom {
            position: fixed;
            left: 24px;
            bottom: 96px;
            z-index: 1050;
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: radial-gradient(circle at 30% 30%, #0B2E1E, #051F14);
            border: 3px solid var(--gold-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--gold-primary);
            font-size: 1.5rem;
            cursor: pointer;
            box-shadow: 0 6px 25px rgba(245, 158, 11, 0.35);
            transition: var(--transition-base);
            animation: floatSlow 2.5s ease-in-out infinite;
        }

        .fab-custom:hover {
            transform: scale(1.15);
            box-shadow: 0 8px 40px rgba(245, 158, 11, 0.6);
        }

        .fab-custom:active {
            transform: scale(0.95) translateY(4px);
        }

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

        .fab-badge {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            background: var(--red-dragon);
            border-radius: 50%;
            border: 2px solid #fff;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .main-coupon-card h1 {
                font-size: 2.2rem;
            }
            .section-title {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 768px) {
            .hero-coupon {
                padding: 60px 0;
            }
            .main-coupon-card {
                padding: 28px;
            }
            .main-coupon-card h1 {
                font-size: 1.8rem;
            }
            .hero-stats {
                flex-direction: column;
                gap: 16px;
            }
            .section-padding {
                padding: 48px 0;
            }
            .navbar-custom .navbar-brand {
                font-size: 1.2rem;
            }
            .nav-auth-btns {
                flex-direction: column;
                gap: 8px;
            }
        }

        @media (max-width: 520px) {
            .main-coupon-card h1 {
                font-size: 1.4rem;
            }
            .stat-number {
                font-size: 1.4rem;
            }
            .section-title {
                font-size: 1.4rem;
            }
        }

/* roulang page: article */
:root {
            --bg-deep: #051F14;
            --bg-forest: #0B2E1E;
            --gold-primary: #F59E0B;
            --gold-light: #FCD34D;
            --gold-gradient: linear-gradient(135deg, #F59E0B 0%, #FCD34D 100%);
            --red-dragon: #DC2626;
            --text-primary: #F8FAFC;
            --text-secondary: #D1FAE5;
            --text-muted: #A3A375;
            --card-bg: rgba(11, 46, 30, 0.7);
            --card-border: rgba(245, 158, 11, 0.3);
            --shadow-gold: 0 4px 24px rgba(245, 158, 11, 0.2);
            --shadow-gold-hover: 0 8px 40px rgba(245, 158, 11, 0.4);
            --border-radius: 16px;
            --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background-color: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button,
        input {
            font-family: inherit;
        }

        .btn {
            border-radius: 50px;
            padding: 12px 32px;
            font-weight: 600;
            letter-spacing: 0.3px;
            transition: var(--transition-base);
            text-transform: none;
            border: 2px solid transparent;
            position: relative;
            overflow: hidden;
        }

        .btn-primary-gold {
            background: var(--gold-gradient);
            color: var(--bg-deep);
            border: none;
            font-weight: 700;
            box-shadow: var(--shadow-gold);
        }

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

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

        .btn-outline-gold:hover {
            background: var(--gold-primary);
            color: var(--bg-deep);
            border-color: var(--gold-primary);
        }

        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .section-padding {
            padding: 80px 0;
        }

        .navbar-custom {
            background: rgba(5, 31, 20, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--card-border);
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 1030;
            transition: var(--transition-base);
        }

        .navbar-custom .navbar-brand {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--gold-primary);
            letter-spacing: -0.3px;
        }

        .navbar-custom .nav-link {
            color: var(--text-secondary);
            font-weight: 500;
            margin: 0 6px;
            padding: 8px 18px !important;
            border-radius: 50px;
            transition: var(--transition-base);
        }

        .navbar-custom .nav-link:hover,
        .navbar-custom .nav-link.active {
            color: var(--gold-primary);
            background: rgba(245, 158, 11, 0.08);
        }

        .navbar-custom .nav-link.active {
            color: var(--gold-primary) !important;
            background: rgba(245, 158, 11, 0.12) !important;
            font-weight: 600;
        }

        .nav-auth-btns .btn {
            padding: 10px 24px;
            font-size: 0.95rem;
        }

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

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(245, 158, 11, 1)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* Article Hero */
        .article-hero {
            background: radial-gradient(ellipse at 20% 30%, #0B2E1E 0%, #051F14 70%);
            padding: 80px 0 60px;
            position: relative;
        }

        .article-hero::before {
            content: '';
            position: absolute;
            top: -200px;
            right: -300px;
            width: 700px;
            height: 700px;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .article-meta-card {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--border-radius);
            padding: 40px;
            position: relative;
            z-index: 1;
        }

        .article-meta-card h1 {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 20px;
            line-height: 1.3;
        }

        .meta-badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }

        .meta-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(245, 158, 11, 0.1);
            border: 1px solid var(--card-border);
            color: var(--gold-primary);
            padding: 6px 14px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
        }

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

        .published-date {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        /* Article Content Section */
        .article-content-section {
            padding: 60px 0;
        }

        .article-content-wrapper {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--border-radius);
            padding: 48px;
            box-shadow: var(--shadow-gold);
        }

        .article-body {
            color: var(--text-secondary);
            font-size: 1.1rem;
            line-height: 1.7;
            word-wrap: break-word;
        }

        .article-body h2 {
            color: var(--gold-primary);
            font-weight: 700;
            margin-top: 32px;
            margin-bottom: 16px;
            font-size: 1.8rem;
            border-left: 4px solid var(--gold-primary);
            padding-left: 20px;
        }

        .article-body h3 {
            color: var(--text-primary);
            font-weight: 600;
            margin-top: 24px;
            margin-bottom: 12px;
            font-size: 1.4rem;
        }

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

        .article-body img {
            border-radius: 12px;
            margin: 24px 0;
        }

        .article-body ul,
        .article-body ol {
            margin-bottom: 20px;
            padding-left: 24px;
        }

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

        .article-body blockquote {
            background: rgba(245, 158, 11, 0.05);
            border-left: 4px solid var(--gold-primary);
            padding: 20px 24px;
            border-radius: 0 12px 12px 0;
            margin: 24px 0;
            font-style: italic;
            color: var(--text-secondary);
        }

        .article-body a {
            color: var(--gold-primary);
            text-decoration: underline;
        }

        .article-body a:hover {
            color: var(--gold-light);
        }

        .article-body table {
            border-collapse: collapse;
            width: 100%;
            margin-bottom: 24px;
            border: 1px solid var(--card-border);
            border-radius: 12px;
            overflow: hidden;
        }

        .article-body th {
            background: rgba(245, 158, 11, 0.15);
            color: var(--gold-primary);
            font-weight: 600;
            padding: 12px 16px;
            text-align: left;
            border-bottom: 1px solid var(--card-border);
        }

        .article-body td {
            padding: 12px 16px;
            border-bottom: 1px solid rgba(245, 158, 11, 0.1);
            color: var(--text-secondary);
        }

        .article-body strong {
            color: var(--text-primary);
            font-weight: 600;
        }

        /* Sidebar */
        .article-sidebar {
            position: sticky;
            top: 100px;
        }

        .sidebar-card {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--border-radius);
            padding: 28px;
            margin-bottom: 24px;
        }

        .sidebar-card h5 {
            color: var(--gold-primary);
            font-weight: 700;
            margin-bottom: 16px;
            font-size: 1.2rem;
        }

        .related-article-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px solid rgba(245, 158, 11, 0.08);
            transition: var(--transition-base);
            cursor: pointer;
        }

        .related-article-item:last-child {
            border-bottom: none;
        }

        .related-article-item:hover {
            color: var(--gold-primary);
        }

        .related-article-item .related-thumb {
            width: 56px;
            height: 56px;
            border-radius: 8px;
            object-fit: cover;
            flex-shrink: 0;
            border: 1px solid var(--card-border);
        }

        .related-article-item .related-info {
            flex: 1;
        }

        .related-article-item .related-title {
            font-weight: 500;
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-article-item:hover .related-title {
            color: var(--gold-primary);
        }

        .related-article-item .related-date {
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag-badge {
            display: inline-block;
            background: rgba(245, 158, 11, 0.1);
            color: var(--gold-primary);
            padding: 6px 12px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 500;
            border: 1px solid transparent;
            transition: var(--transition-base);
            cursor: pointer;
        }

        .tag-badge:hover {
            background: rgba(245, 158, 11, 0.2);
            border-color: var(--gold-primary);
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, rgba(11, 46, 30, 0.9) 0%, rgba(5, 31, 20, 1) 100%);
            padding: 80px 0;
            text-align: center;
            border-top: 2px solid var(--card-border);
        }

        .cta-section h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--gold-primary);
            margin-bottom: 16px;
        }

        .cta-section p {
            color: var(--text-secondary);
            margin-bottom: 32px;
            font-size: 1.1rem;
        }

        /* Not Found */
        .not-found-card {
            text-align: center;
            padding: 80px 24px;
            background: var(--card-bg);
            border-radius: var(--border-radius);
            border: 1px solid var(--card-border);
        }

        .not-found-card i {
            font-size: 4rem;
            color: var(--text-muted);
            margin-bottom: 24px;
        }

        .not-found-card h3 {
            color: var(--text-primary);
            font-weight: 700;
            margin-bottom: 12px;
        }

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

        /* Footer */
        .footer-custom {
            background: #030D0A;
            padding: 60px 0 20px;
            border-top: 1px solid var(--card-border);
        }

        .footer-brand {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--gold-primary);
        }

        .footer-link {
            color: var(--text-secondary);
            transition: var(--transition-base);
            font-size: 0.95rem;
        }

        .footer-link:hover {
            color: var(--gold-primary);
        }

        h6 {
            color: var(--gold-primary);
            font-weight: 700;
            margin-bottom: 16px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(245, 158, 11, 0.1);
            margin-top: 40px;
            padding-top: 24px;
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        /* FAB */
        .fab-float {
            position: fixed;
            left: 24px;
            bottom: 96px;
            z-index: 1050;
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: var(--gold-gradient);
            color: var(--bg-deep);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            box-shadow: 0 6px 25px rgba(245, 158, 11, 0.35);
            border: 2px solid var(--gold-primary);
            transition: var(--transition-base);
            animation: floatBounce 3s ease-in-out infinite;
        }

        .fab-float:hover {
            transform: scale(1.1);
            box-shadow: 0 10px 35px rgba(245, 158, 11, 0.5);
            color: var(--bg-deep);
        }

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

        @media (max-width: 991.98px) {
            .article-content-wrapper {
                padding: 28px;
            }
            .article-meta-card h1 {
                font-size: 2rem;
            }
            .article-sidebar {
                margin-top: 32px;
                position: static;
            }
        }

        @media (max-width: 767.98px) {
            .section-padding {
                padding: 48px 0;
            }
            .article-hero {
                padding: 60px 0 40px;
            }
            .article-meta-card {
                padding: 24px;
            }
            .article-meta-card h1 {
                font-size: 1.6rem;
            }
            .article-content-wrapper {
                padding: 20px;
                border-radius: 12px;
            }
            .article-body {
                font-size: 1rem;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .fab-float {
                width: 50px;
                height: 50px;
                left: 16px;
                bottom: 80px;
                font-size: 1.3rem;
            }
        }

        @keyframes rotateGlow {
            0% {
                transform: rotate(0deg);
            }
            100% {
                transform: rotate(360deg);
            }
        }

/* roulang page: category1 */
:root {
            --bg-deep: #051F14;
            --bg-forest: #0B2E1E;
            --gold-primary: #F59E0B;
            --gold-light: #FCD34D;
            --gold-gradient: linear-gradient(135deg, #F59E0B 0%, #FCD34D 100%);
            --red-dragon: #DC2626;
            --text-primary: #F8FAFC;
            --text-secondary: #D1FAE5;
            --text-muted: #A3A375;
            --card-bg: rgba(11, 46, 30, 0.7);
            --card-border: rgba(245, 158, 11, 0.3);
            --shadow-gold: 0 4px 24px rgba(245, 158, 11, 0.2);
            --shadow-gold-hover: 0 8px 40px rgba(245, 158, 11, 0.4);
            --border-radius: 16px;
            --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background-color: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button, input {
            font-family: inherit;
        }

        .btn {
            border-radius: 50px;
            padding: 12px 32px;
            font-weight: 600;
            letter-spacing: 0.3px;
            transition: var(--transition-base);
            text-transform: none;
            border: 2px solid transparent;
            position: relative;
            overflow: hidden;
        }

        .btn-primary-gold {
            background: var(--gold-gradient);
            color: var(--bg-deep);
            border: none;
            font-weight: 700;
            box-shadow: var(--shadow-gold);
        }

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

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

        .btn-outline-gold:hover {
            background: var(--gold-primary);
            color: var(--bg-deep);
            border-color: var(--gold-primary);
        }

        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .section-padding {
            padding: 80px 0;
        }

        .navbar-custom {
            background: rgba(5, 31, 20, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--card-border);
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 1030;
            transition: var(--transition-base);
        }

        .navbar-custom .navbar-brand {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--gold-primary);
            letter-spacing: -0.3px;
        }

        .navbar-custom .nav-link {
            color: var(--text-secondary);
            font-weight: 500;
            margin: 0 6px;
            padding: 8px 18px !important;
            border-radius: 50px;
            transition: var(--transition-base);
        }

        .navbar-custom .nav-link:hover,
        .navbar-custom .nav-link.active {
            color: var(--gold-primary);
            background: rgba(245, 158, 11, 0.08);
        }

        .nav-auth-btns .btn {
            padding: 10px 24px;
            font-size: 0.95rem;
        }

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

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(245, 158, 11, 1)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        .hero-coupon {
            position: relative;
            background: radial-gradient(ellipse at 20% 30%, #0B2E1E 0%, #051F14 70%);
            padding: 100px 0 80px;
            overflow: hidden;
        }

        .hero-coupon::before {
            content: '';
            position: absolute;
            top: -200px;
            right: -300px;
            width: 700px;
            height: 700px;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .main-coupon-card {
            background: linear-gradient(135deg, #FCD34D 0%, #F59E0B 100%);
            border-radius: 24px;
            padding: 48px;
            position: relative;
            color: var(--bg-deep);
            box-shadow: 0 20px 60px rgba(245, 158, 11, 0.4);
            text-align: center;
            overflow: hidden;
            border: 3px dashed rgba(5, 31, 20, 0.3);
        }

        .main-coupon-card::after {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(255,255,255,0.3) 0%, transparent 60%);
            animation: rotateGlow 8s linear infinite;
            pointer-events: none;
        }

        @keyframes rotateGlow {
            from { transform: rotate(0deg); }
            to { transform: rotate(360deg); }
        }

        .coupon-badge {
            display: inline-block;
            background: var(--red-dragon);
            color: #fff;
            padding: 8px 20px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.9rem;
            letter-spacing: 1px;
            margin-bottom: 20px;
            position: relative;
            z-index: 1;
        }

        .main-coupon-card h1 {
            font-size: 3rem;
            font-weight: 900;
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
            line-height: 1.2;
            color: #051F14;
        }

        .main-coupon-card .hero-stats {
            display: flex;
            justify-content: center;
            gap: 40px;
            margin-top: 32px;
            position: relative;
            z-index: 1;
            flex-wrap: wrap;
        }

        .stat-item {
            text-align: center;
        }

        .stat-item .value {
            font-size: 2.2rem;
            font-weight: 900;
            color: #051F14;
        }

        .stat-item .label {
            font-size: 0.9rem;
            font-weight: 600;
            color: rgba(5, 31, 20, 0.7);
        }

        .timer-bar {
            background: rgba(5, 31, 20, 0.8);
            border-radius: 50px;
            padding: 16px 32px;
            display: inline-flex;
            align-items: center;
            gap: 12px;
            margin-top: 28px;
            position: relative;
            z-index: 1;
            color: var(--gold-light);
            font-weight: 700;
        }

        .section-header {
            margin-bottom: 48px;
        }

        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--gold-primary);
            margin-bottom: 12px;
        }

        .section-header p {
            color: var(--text-secondary);
            font-size: 1.1rem;
            max-width: 700px;
        }

        .glass-card {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--border-radius);
            padding: 32px;
            backdrop-filter: blur(10px);
            transition: var(--transition-base);
            height: 100%;
        }

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

        .number-highlight {
            font-size: 2rem;
            font-weight: 900;
            color: var(--gold-primary);
            display: inline-block;
            margin-right: 8px;
        }

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

        .metric-card {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--border-radius);
            padding: 32px 24px;
            text-align: left;
            transition: var(--transition-base);
            position: relative;
            overflow: hidden;
        }

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

        .metric-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 8px;
        }

        .metric-value {
            font-size: 2.8rem;
            font-weight: 900;
            color: var(--gold-light);
            line-height: 1.1;
        }

        .metric-change {
            font-size: 0.95rem;
            font-weight: 700;
            margin-top: 8px;
            display: inline-block;
            padding: 4px 12px;
            border-radius: 50px;
            background: rgba(16, 185, 129, 0.15);
            color: #10B981;
        }

        .service-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 28px;
        }

        .service-card {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--border-radius);
            padding: 36px 28px;
            transition: var(--transition-base);
        }

        .service-card:hover {
            border-color: var(--gold-primary);
            box-shadow: var(--shadow-gold);
            transform: translateY(-6px);
        }

        .service-icon {
            font-size: 2.8rem;
            color: var(--gold-primary);
            margin-bottom: 20px;
        }

        .service-card h3 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-primary);
        }

        .service-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            margin-bottom: 0;
        }

        .comparison-table {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--border-radius);
            overflow: hidden;
        }

        .comparison-table .table {
            color: var(--text-primary);
            margin-bottom: 0;
        }

        .comparison-table .table th {
            background: rgba(245, 158, 11, 0.15);
            color: var(--gold-primary);
            font-weight: 700;
            border-bottom: 2px solid var(--card-border);
            padding: 16px;
        }

        .comparison-table .table td {
            padding: 14px 16px;
            border-bottom: 1px solid var(--card-border);
            color: var(--text-secondary);
        }

        .check-icon {
            color: #10B981;
            font-weight: 700;
        }

        .milestone-timeline {
            position: relative;
        }

        .milestone-item {
            display: flex;
            gap: 24px;
            margin-bottom: 36px;
            position: relative;
            padding-left: 32px;
            border-left: 2px solid var(--card-border);
            transition: var(--transition-base);
        }

        .milestone-item:hover {
            border-left-color: var(--gold-primary);
        }

        .milestone-dot {
            width: 16px;
            height: 16px;
            background: var(--gold-gradient);
            border-radius: 50%;
            position: absolute;
            left: -9px;
            top: 4px;
            box-shadow: var(--shadow-gold);
        }

        .milestone-content h4 {
            color: var(--gold-primary);
            font-weight: 700;
            margin-bottom: 6px;
        }

        .milestone-content p {
            color: var(--text-secondary);
            margin-bottom: 0;
            font-size: 0.95rem;
        }

        .news-list-section {
            background: rgba(11, 46, 30, 0.5);
            border-radius: var(--border-radius);
            padding: 48px 32px;
            border: 1px solid var(--card-border);
        }

        .news-card {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--border-radius);
            padding: 24px;
            margin-bottom: 20px;
            transition: var(--transition-base);
            display: flex;
            gap: 20px;
            align-items: center;
        }

        .news-card:hover {
            border-color: var(--gold-primary);
            box-shadow: var(--shadow-gold);
            transform: translateX(6px);
        }

        .news-thumb {
            width: 100px;
            height: 70px;
            border-radius: 12px;
            object-fit: cover;
            flex-shrink: 0;
        }

        .news-info h5 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .news-info .meta {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .trust-badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            justify-content: center;
            align-items: center;
            padding: 40px 0;
            border-top: 1px solid var(--card-border);
            border-bottom: 1px solid var(--card-border);
        }

        .trust-badge {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-secondary);
            font-weight: 600;
            font-size: 0.95rem;
        }

        .trust-badge i {
            color: var(--gold-primary);
            font-size: 1.5rem;
        }

        .faq-accordion .accordion-item {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--border-radius) !important;
            margin-bottom: 12px;
            overflow: hidden;
        }

        .faq-accordion .accordion-button {
            background: transparent;
            color: var(--text-primary);
            font-weight: 700;
            box-shadow: none;
            padding: 20px 24px;
            font-size: 1.05rem;
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            background: rgba(245, 158, 11, 0.08);
            color: var(--gold-primary);
        }

        .faq-accordion .accordion-button::after {
            filter: brightness(0) invert(1);
        }

        .faq-accordion .accordion-body {
            color: var(--text-secondary);
            padding: 20px 24px;
            border-top: 1px solid var(--card-border);
        }

        .cta-section {
            background: var(--gold-gradient);
            border-radius: 24px;
            padding: 56px 48px;
            text-align: center;
            color: #051F14;
            position: relative;
            overflow: hidden;
        }

        .cta-section h2 {
            font-size: 2.2rem;
            font-weight: 900;
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
        }

        .cta-section p {
            font-size: 1.1rem;
            font-weight: 500;
            margin-bottom: 28px;
            position: relative;
            z-index: 1;
            color: rgba(5, 31, 20, 0.8);
        }

        .footer-custom {
            background: #030F0A;
            border-top: 2px solid var(--card-border);
            padding: 48px 0 28px;
            margin-top: 80px;
        }

        .footer-brand {
            color: var(--gold-primary);
            font-weight: 800;
            font-size: 1.4rem;
        }

        .footer-link {
            color: var(--text-secondary);
            font-size: 0.95rem;
            transition: var(--transition-base);
        }

        .footer-link:hover {
            color: var(--gold-primary);
            padding-left: 6px;
        }

        .footer-bottom {
            border-top: 1px solid var(--card-border);
            margin-top: 32px;
            padding-top: 20px;
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        .fab-fixed {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 1050;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--bg-deep);
            border: 2px solid var(--gold-primary);
            box-shadow: 0 6px 25px rgba(245, 158, 11, 0.35);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--gold-primary);
            font-size: 1.5rem;
            transition: var(--transition-base);
            opacity: 0.8;
            animation: fabBounce 2s ease-in-out infinite;
        }

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

        .fab-fixed:hover {
            transform: scale(1.1) translateY(-2px);
            opacity: 1;
            box-shadow: 0 8px 35px rgba(245, 158, 11, 0.55);
        }

        .fab-badge {
            width: 14px;
            height: 14px;
            background: #DC2626;
            border-radius: 50%;
            position: absolute;
            top: -2px;
            right: -2px;
            border: 2px solid #fff;
        }

        @media (max-width: 768px) {
            .main-coupon-card h1 {
                font-size: 2rem;
            }
            .main-coupon-card {
                padding: 28px 20px;
            }
            .hero-coupon {
                padding: 60px 0 40px;
            }
            .metric-dashboard {
                grid-template-columns: 1fr;
            }
            .service-grid {
                grid-template-columns: 1fr;
            }
            .section-header h2 {
                font-size: 1.8rem;
            }
            .news-card {
                flex-direction: column;
                align-items: flex-start;
            }
            .news-thumb {
                width: 100%;
                height: 140px;
            }
            .cta-section {
                padding: 36px 24px;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
        }

/* roulang page: category2 */
:root {
            --bg-deep: #051F14;
            --bg-forest: #0B2E1E;
            --gold-primary: #F59E0B;
            --gold-light: #FCD34D;
            --gold-gradient: linear-gradient(135deg, #F59E0B 0%, #FCD34D 100%);
            --red-dragon: #DC2626;
            --text-primary: #F8FAFC;
            --text-secondary: #D1FAE5;
            --text-muted: #A3A375;
            --card-bg: rgba(11, 46, 30, 0.7);
            --card-border: rgba(245, 158, 11, 0.3);
            --shadow-gold: 0 4px 24px rgba(245, 158, 11, 0.2);
            --shadow-gold-hover: 0 8px 40px rgba(245, 158, 11, 0.4);
            --border-radius: 16px;
            --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background-color: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }
        
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition-base);
        }
        
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        
        button,
        input {
            font-family: inherit;
        }
        
        .btn {
            border-radius: 50px;
            padding: 12px 32px;
            font-weight: 600;
            letter-spacing: 0.3px;
            transition: var(--transition-base);
            text-transform: none;
            border: 2px solid transparent;
            position: relative;
            overflow: hidden;
        }
        
        .btn-primary-gold {
            background: var(--gold-gradient);
            color: var(--bg-deep);
            border: none;
            font-weight: 700;
            box-shadow: var(--shadow-gold);
        }
        
        .btn-primary-gold:hover {
            box-shadow: var(--shadow-gold-hover);
            transform: translateY(-2px);
            color: var(--bg-deep);
        }
        
        .btn-outline-gold {
            background: transparent;
            border: 2px solid var(--gold-primary);
            color: var(--gold-primary);
        }
        
        .btn-outline-gold:hover {
            background: var(--gold-primary);
            color: var(--bg-deep);
            border-color: var(--gold-primary);
        }
        
        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        .section-padding {
            padding: 80px 0;
        }
        
        .navbar-custom {
            background: rgba(5, 31, 20, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--card-border);
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 1030;
            transition: var(--transition-base);
        }
        
        .navbar-custom .navbar-brand {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--gold-primary);
            letter-spacing: -0.3px;
        }
        
        .navbar-custom .nav-link {
            color: var(--text-secondary);
            font-weight: 500;
            margin: 0 6px;
            padding: 8px 18px !important;
            border-radius: 50px;
            transition: var(--transition-base);
        }
        
        .navbar-custom .nav-link:hover,
        .navbar-custom .nav-link.active {
            color: var(--gold-primary);
            background: rgba(245, 158, 11, 0.08);
        }
        
        .nav-auth-btns .btn {
            padding: 10px 24px;
            font-size: 0.95rem;
        }
        
        .navbar-toggler {
            border-color: var(--card-border);
        }
        
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(245, 158, 11, 1)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }
        
        .hero-coupon {
            position: relative;
            background: radial-gradient(ellipse at 20% 30%, #0B2E1E 0%, #051F14 70%);
            padding: 100px 0 80px;
            overflow: hidden;
        }
        
        .hero-coupon::before {
            content: '';
            position: absolute;
            top: -200px;
            right: -300px;
            width: 700px;
            height: 700px;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        
        .main-coupon-card {
            background: linear-gradient(135deg, #FCD34D 0%, #F59E0B 100%);
            border-radius: 24px;
            padding: 48px;
            position: relative;
            color: var(--bg-deep);
            box-shadow: 0 20px 60px rgba(245, 158, 11, 0.4);
            text-align: center;
            overflow: hidden;
            border: 3px dashed rgba(5, 31, 20, 0.3);
        }
        
        .coupon-badge {
            display: inline-block;
            background: var(--red-dragon);
            color: #fff;
            padding: 8px 20px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.9rem;
            letter-spacing: 1px;
            margin-bottom: 20px;
            position: relative;
            z-index: 1;
        }
        
        .main-coupon-card h1 {
            font-size: 2.8rem;
            font-weight: 900;
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
            line-height: 1.2;
            color: #051F14;
        }
        
        .hero-subtitle {
            font-size: 1.2rem;
            font-weight: 600;
            color: #1a4028;
            position: relative;
            z-index: 1;
            margin-bottom: 24px;
        }
        
        .stat-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(5, 31, 20, 0.9);
            color: var(--gold-primary);
            padding: 10px 20px;
            border-radius: 50px;
            font-weight: 700;
            margin: 0 8px;
            font-size: 0.95rem;
        }
        
        .stat-badge i {
            font-size: 1.1rem;
        }
        
        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 16px;
            color: var(--text-primary);
            position: relative;
            display: inline-block;
        }
        
        .section-title::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 0;
            width: 60px;
            height: 3px;
            background: var(--gold-gradient);
            border-radius: 3px;
        }
        
        .section-subtitle {
            color: var(--text-muted);
            font-size: 1.1rem;
            margin-bottom: 48px;
            font-weight: 400;
        }
        
        .metric-card {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--border-radius);
            padding: 32px 24px;
            text-align: center;
            transition: var(--transition-base);
            position: relative;
            overflow: hidden;
            height: 100%;
        }
        
        .metric-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-gold);
            border-color: var(--gold-primary);
        }
        
        .metric-value {
            font-size: 2.8rem;
            font-weight: 900;
            background: var(--gold-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1;
            margin-bottom: 12px;
        }
        
        .metric-label {
            font-size: 1rem;
            color: var(--text-secondary);
            font-weight: 600;
            margin-bottom: 8px;
        }
        
        .metric-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.5;
        }
        
        .service-card {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--border-radius);
            padding: 36px 28px;
            transition: var(--transition-base);
            height: 100%;
            position: relative;
            overflow: hidden;
        }
        
        .service-card:hover {
            box-shadow: var(--shadow-gold-hover);
            border-color: var(--gold-primary);
            transform: translateY(-6px);
        }
        
        .service-icon {
            width: 64px;
            height: 64px;
            background: var(--gold-gradient);
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            color: var(--bg-deep);
            margin-bottom: 24px;
            font-weight: 700;
        }
        
        .service-card h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        
        .service-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
            margin-bottom: 0;
        }
        
        .compare-table {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--border-radius);
            overflow: hidden;
        }
        
        .compare-table .table {
            margin-bottom: 0;
            color: var(--text-primary);
        }
        
        .compare-table .table th {
            background: rgba(245, 158, 11, 0.15);
            color: var(--gold-primary);
            font-weight: 700;
            border-bottom: 2px solid var(--gold-primary);
            padding: 18px;
            font-size: 1rem;
        }
        
        .compare-table .table td {
            padding: 16px 18px;
            border-color: var(--card-border);
            color: var(--text-secondary);
            vertical-align: middle;
        }
        
        .compare-table .table .highlight-row {
            background: rgba(245, 158, 11, 0.05);
        }
        
        .milestone-timeline {
            position: relative;
            padding-left: 48px;
        }
        
        .milestone-timeline::before {
            content: '';
            position: absolute;
            left: 18px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: var(--gold-gradient);
            border-radius: 2px;
        }
        
        .milestone-item {
            position: relative;
            margin-bottom: 40px;
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--border-radius);
            padding: 24px;
            transition: var(--transition-base);
        }
        
        .milestone-item:hover {
            box-shadow: var(--shadow-gold);
            border-color: var(--gold-primary);
        }
        
        .milestone-item::before {
            content: '';
            position: absolute;
            left: -40px;
            top: 24px;
            width: 14px;
            height: 14px;
            background: var(--gold-gradient);
            border-radius: 50%;
            border: 3px solid var(--bg-deep);
            box-shadow: 0 0 12px rgba(245, 158, 11, 0.5);
        }
        
        .milestone-item h4 {
            font-weight: 700;
            color: var(--gold-primary);
            margin-bottom: 8px;
            font-size: 1.2rem;
        }
        
        .milestone-item p {
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.7;
        }
        
        .article-card {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--border-radius);
            overflow: hidden;
            transition: var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        
        .article-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-gold-hover);
            border-color: var(--gold-primary);
        }
        
        .article-card-img {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
        }
        
        .article-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        
        .article-card:hover .article-card-img img {
            transform: scale(1.05);
        }
        
        .article-category-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--red-dragon);
            color: #fff;
            padding: 6px 14px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 700;
            z-index: 2;
        }
        
        .article-card-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        
        .article-card-body h5 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        
        .article-card-body p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.6;
            margin-bottom: 16px;
            flex: 1;
        }
        
        .article-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            color: var(--text-muted);
            font-size: 0.85rem;
            margin-top: auto;
        }
        
        .guarantee-block {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--border-radius);
            padding: 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        
        .guarantee-block::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle at center, rgba(245, 158, 11, 0.05) 0%, transparent 60%);
            pointer-events: none;
        }
        
        .guarantee-icon {
            font-size: 3.5rem;
            color: var(--gold-primary);
            margin-bottom: 24px;
        }
        
        .guarantee-block h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 16px;
        }
        
        .guarantee-block p {
            color: var(--text-secondary);
            font-size: 1.1rem;
            max-width: 700px;
            margin: 0 auto 32px;
        }
        
        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--border-radius);
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition-base);
        }
        
        .faq-item:hover {
            border-color: var(--gold-primary);
        }
        
        .faq-question {
            padding: 20px 28px;
            font-weight: 700;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 1.05rem;
            transition: var(--transition-base);
        }
        
        .faq-question i {
            color: var(--gold-primary);
            transition: transform 0.3s ease;
            font-size: 1rem;
        }
        
        .faq-answer {
            padding: 0 28px 20px;
            color: var(--text-secondary);
            line-height: 1.7;
            display: none;
        }
        
        .faq-item.active .faq-answer {
            display: block;
        }
        
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        
        .cta-section {
            background: radial-gradient(ellipse at center, rgba(11, 46, 30, 0.9) 0%, rgba(5, 31, 20, 0.98) 100%);
            border: 1px solid var(--card-border);
            border-radius: var(--border-radius);
            padding: 60px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        
        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('/assets/images/5657c7b070b078d5.jpg') center / cover no-repeat;
            opacity: 0.15;
            z-index: 0;
        }
        
        .cta-section>* {
            position: relative;
            z-index: 1;
        }
        
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 16px;
        }
        
        .cta-section p {
            color: var(--text-secondary);
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto 32px;
        }
        
        .footer-custom {
            background: var(--bg-forest);
            border-top: 1px solid var(--card-border);
            padding: 60px 0 30px;
            margin-top: 80px;
        }
        
        .footer-brand {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--gold-primary);
        }
        
        .footer-link {
            color: var(--text-secondary);
            font-size: 0.95rem;
            transition: var(--transition-base);
        }
        
        .footer-link:hover {
            color: var(--gold-primary);
            padding-left: 4px;
        }
        
        .footer-bottom {
            border-top: 1px solid var(--card-border);
            padding-top: 24px;
            margin-top: 40px;
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        
        .fab-left {
            position: fixed;
            left: 24px;
            bottom: 96px;
            z-index: 1050;
            width: 56px;
            height: 56px;
            background: var(--gold-gradient);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--bg-deep);
            font-size: 1.5rem;
            box-shadow: 0 6px 25px rgba(245, 158, 11, 0.35);
            transition: var(--transition-base);
            cursor: pointer;
            animation: floatBounce 2.5s ease-in-out infinite;
        }
        
        .fab-left:hover {
            transform: scale(1.1);
            box-shadow: 0 8px 35px rgba(245, 158, 11, 0.5);
        }
        
        .fab-left .badge-notify {
            position: absolute;
            top: -2px;
            right: -2px;
            width: 14px;
            height: 14px;
            background: var(--red-dragon);
            border-radius: 50%;
            border: 2px solid #fff;
        }
        
        @keyframes floatBounce {
            0%,
            100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-6px);
            }
        }
        
        @media (max-width: 991.98px) {
            .navbar-custom .nav-link {
                margin: 4px 0;
            }
            .main-coupon-card h1 {
                font-size: 2rem;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .metric-value {
                font-size: 2.2rem;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .milestone-timeline {
                padding-left: 36px;
            }
            .milestone-item::before {
                left: -30px;
            }
        }
        
        @media (max-width: 575.98px) {
            .main-coupon-card {
                padding: 28px 16px;
            }
            .main-coupon-card h1 {
                font-size: 1.6rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .stat-badge {
                display: block;
                margin: 8px auto;
                width: fit-content;
            }
            .section-padding {
                padding: 48px 0;
            }
            .fab-left {
                width: 48px;
                height: 48px;
                left: 16px;
                bottom: 80px;
                font-size: 1.2rem;
            }
        }

/* roulang page: category3 */
:root {
            --bg-deep: #051F14;
            --bg-forest: #0B2E1E;
            --gold-primary: #F59E0B;
            --gold-light: #FCD34D;
            --gold-gradient: linear-gradient(135deg, #F59E0B 0%, #FCD34D 100%);
            --red-dragon: #DC2626;
            --text-primary: #F8FAFC;
            --text-secondary: #D1FAE5;
            --text-muted: #A3A375;
            --card-bg: rgba(11, 46, 30, 0.7);
            --card-border: rgba(245, 158, 11, 0.3);
            --shadow-gold: 0 4px 24px rgba(245, 158, 11, 0.2);
            --shadow-gold-hover: 0 8px 40px rgba(245, 158, 11, 0.4);
            --border-radius: 16px;
            --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background-color: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button, input {
            font-family: inherit;
        }

        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .section-padding {
            padding: 80px 0;
        }

        /* Buttons */
        .btn-primary-gold {
            background: var(--gold-gradient);
            color: var(--bg-deep);
            border: none;
            font-weight: 700;
            box-shadow: var(--shadow-gold);
            border-radius: 50px;
            padding: 12px 32px;
            transition: var(--transition-base);
        }

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

        .btn-outline-gold {
            background: transparent;
            border: 2px solid var(--gold-primary);
            color: var(--gold-primary);
            border-radius: 50px;
            padding: 12px 32px;
            font-weight: 600;
            transition: var(--transition-base);
        }

        .btn-outline-gold:hover {
            background: var(--gold-primary);
            color: var(--bg-deep);
            border-color: var(--gold-primary);
        }

        /* Header / Navigation */
        .navbar-custom {
            background: rgba(5, 31, 20, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--card-border);
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 1030;
            transition: var(--transition-base);
        }

        .navbar-custom .navbar-brand {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--gold-primary);
            letter-spacing: -0.3px;
        }

        .navbar-custom .nav-link {
            color: var(--text-secondary);
            font-weight: 500;
            margin: 0 6px;
            padding: 8px 18px !important;
            border-radius: 50px;
            transition: var(--transition-base);
        }

        .navbar-custom .nav-link:hover,
        .navbar-custom .nav-link.active {
            color: var(--gold-primary);
            background: rgba(245, 158, 11, 0.08);
        }

        .nav-auth-btns .btn {
            padding: 10px 24px;
            font-size: 0.95rem;
        }

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

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(245, 158, 11, 1)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* Hero Section - Expert Intro */
        .hero-expert {
            position: relative;
            background: radial-gradient(ellipse at 30% 40%, #0B2E1E 0%, #051F14 70%);
            padding: 80px 0 60px;
            overflow: hidden;
        }

        .hero-expert::before {
            content: '';
            position: absolute;
            top: -150px;
            left: -200px;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-expert h1 {
            font-size: 2.8rem;
            font-weight: 900;
            color: var(--gold-primary);
            margin-bottom: 20px;
            line-height: 1.2;
        }

        .hero-expert .lead {
            color: var(--text-secondary);
            font-size: 1.15rem;
            line-height: 1.7;
        }

        .hero-badge {
            display: inline-block;
            background: var(--red-dragon);
            color: #fff;
            padding: 8px 20px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.85rem;
            letter-spacing: 0.5px;
            margin-bottom: 24px;
        }

        .hero-stats-row {
            display: flex;
            flex-wrap: wrap;
            gap: 30px;
            margin-top: 32px;
        }

        .stat-block {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--border-radius);
            padding: 20px 28px;
            display: flex;
            align-items: center;
            gap: 16px;
            backdrop-filter: blur(10px);
        }

        .stat-block .stat-icon {
            font-size: 2rem;
            color: var(--gold-primary);
        }

        .stat-block .stat-value {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--text-primary);
        }

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

        /* Expert Cards */
        .expert-card {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--border-radius);
            padding: 40px 32px;
            backdrop-filter: blur(10px);
            transition: var(--transition-base);
            height: 100%;
            position: relative;
            overflow: hidden;
        }

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

        .expert-card .expert-avatar {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            object-fit: cover;
            border: 3px solid var(--gold-primary);
            margin-bottom: 20px;
        }

        .expert-card .expert-name {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .expert-card .expert-title {
            font-size: 0.9rem;
            color: var(--gold-primary);
            font-weight: 600;
            margin-bottom: 12px;
        }

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

        .expert-card .expert-stats {
            display: flex;
            gap: 20px;
            margin-top: 16px;
            padding-top: 16px;
            border-top: 1px solid var(--card-border);
        }

        .expert-mini-stat {
            text-align: center;
        }

        .expert-mini-stat .value {
            font-weight: 700;
            color: var(--gold-primary);
            font-size: 1.1rem;
        }

        .expert-mini-stat .label {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* Methodology Cards */
        .methodology-card {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--border-radius);
            padding: 32px;
            backdrop-filter: blur(10px);
            transition: var(--transition-base);
            height: 100%;
        }

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

        .methodology-card .method-icon {
            font-size: 2.5rem;
            color: var(--gold-primary);
            margin-bottom: 20px;
        }

        .methodology-card h5 {
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .methodology-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        /* Comparison / Data Block */
        .comparison-table {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--border-radius);
            overflow: hidden;
            backdrop-filter: blur(10px);
        }

        .comparison-table .comp-row {
            display: flex;
            border-bottom: 1px solid rgba(245, 158, 11, 0.15);
            padding: 20px 28px;
            align-items: center;
            transition: var(--transition-base);
        }

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

        .comparison-table .comp-row:hover {
            background: rgba(245, 158, 11, 0.05);
        }

        .comparison-table .comp-header {
            font-weight: 700;
            color: var(--gold-primary);
            background: rgba(245, 158, 11, 0.08);
            padding: 18px 28px;
            display: flex;
            align-items: center;
        }

        .comp-col {
            flex: 1;
            padding: 0 12px;
        }

        .comp-col:first-child {
            flex: 0 0 200px;
            font-weight: 600;
            color: var(--text-secondary);
        }

        /* Milestone Timeline */
        .timeline-item {
            display: flex;
            gap: 24px;
            padding: 20px 0;
            position: relative;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            top: 32px;
            left: 20px;
            width: 2px;
            height: calc(100% - 32px);
            background: var(--card-border);
        }

        .timeline-item:last-child::before {
            display: none;
        }

        .timeline-dot {
            width: 16px;
            height: 16px;
            background: var(--gold-primary);
            border-radius: 50%;
            flex-shrink: 0;
            margin-top: 6px;
            position: relative;
            z-index: 1;
            box-shadow: 0 0 12px rgba(245, 158, 11, 0.5);
        }

        .timeline-content h5 {
            font-weight: 700;
            color: var(--gold-primary);
            margin-bottom: 6px;
        }

        .timeline-content p {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 0;
        }

        /* FAQ Accordion */
        .accordion-faq .accordion-item {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--border-radius) !important;
            margin-bottom: 12px;
            overflow: hidden;
        }

        .accordion-faq .accordion-button {
            background: transparent;
            color: var(--text-primary);
            font-weight: 600;
            font-size: 1.05rem;
            padding: 20px 28px;
            border: none;
            box-shadow: none;
        }

        .accordion-faq .accordion-button:not(.collapsed) {
            background: rgba(245, 158, 11, 0.08);
            color: var(--gold-primary);
            box-shadow: none;
        }

        .accordion-faq .accordion-button::after {
            filter: brightness(0) invert(1);
        }

        .accordion-faq .accordion-body {
            color: var(--text-muted);
            padding: 0 28px 20px;
            line-height: 1.7;
        }

        /* CTA Banner */
        .cta-banner {
            background: linear-gradient(135deg, #FCD34D 0%, #F59E0B 100%);
            border-radius: var(--border-radius);
            padding: 48px;
            text-align: center;
            color: var(--bg-deep);
            position: relative;
            overflow: hidden;
        }

        .cta-banner::after {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(255,255,255,0.2) 0%, transparent 60%);
            animation: rotateGlow 8s linear infinite;
            pointer-events: none;
        }

        @keyframes rotateGlow {
            from { transform: rotate(0deg); }
            to { transform: rotate(360deg); }
        }

        .cta-banner h2 {
            font-weight: 900;
            font-size: 2.2rem;
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
        }

        .cta-banner p {
            position: relative;
            z-index: 1;
            opacity: 0.9;
            font-size: 1.1rem;
        }

        .cta-banner .btn {
            position: relative;
            z-index: 1;
            background: var(--bg-deep);
            color: var(--gold-primary);
            border: 2px solid var(--bg-deep);
            font-weight: 700;
            margin-top: 20px;
        }

        .cta-banner .btn:hover {
            background: transparent;
            color: var(--bg-deep);
        }

        /* Article List */
        .article-list-card {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--border-radius);
            padding: 28px;
            backdrop-filter: blur(10px);
            transition: var(--transition-base);
            height: 100%;
        }

        .article-list-card:hover {
            box-shadow: var(--shadow-gold);
            border-color: var(--gold-primary);
            transform: translateY(-2px);
        }

        .article-list-card .article-thumb {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-radius: 12px;
            margin-bottom: 16px;
        }

        .article-list-card .article-category {
            display: inline-block;
            background: rgba(245, 158, 11, 0.15);
            color: var(--gold-primary);
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 12px;
        }

        .article-list-card h5 {
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .article-list-card .article-excerpt {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
        }

        /* FAB */
        .fab-floating {
            position: fixed;
            left: 24px;
            bottom: 100px;
            z-index: 1050;
            width: 56px;
            height: 56px;
            background: var(--gold-gradient);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--bg-deep);
            font-size: 1.4rem;
            box-shadow: 0 6px 25px rgba(245, 158, 11, 0.35);
            transition: var(--transition-base);
            border: 2px solid rgba(5, 31, 20, 0.3);
            animation: floatBounce 3s ease-in-out infinite;
        }

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

        .fab-floating:hover {
            transform: scale(1.1);
            box-shadow: 0 8px 35px rgba(245, 158, 11, 0.5);
            color: var(--bg-deep);
        }

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

        .fab-badge {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 16px;
            height: 16px;
            background: var(--red-dragon);
            border-radius: 50%;
            border: 2px solid #fff;
        }

        /* Footer */
        .footer-custom {
            background: #020D0A;
            padding: 60px 0 30px;
            border-top: 1px solid var(--card-border);
        }

        .footer-brand {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--gold-primary);
        }

        .footer-link {
            color: var(--text-muted);
            font-size: 0.95rem;
            transition: var(--transition-base);
        }

        .footer-link:hover {
            color: var(--gold-primary);
        }

        .footer-bottom {
            border-top: 1px solid rgba(245, 158, 11, 0.15);
            padding-top: 24px;
            margin-top: 40px;
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        /* Responsive */
        @media (max-width: 991px) {
            .hero-expert h1 {
                font-size: 2rem;
            }
            .hero-stats-row {
                flex-direction: column;
                gap: 16px;
            }
            .comparison-table .comp-row,
            .comparison-table .comp-header {
                flex-wrap: wrap;
                padding: 14px 20px;
            }
            .comp-col:first-child {
                flex: 0 0 100%;
                margin-bottom: 8px;
            }
            .comp-col {
                flex: 1 0 auto;
                min-width: 100px;
            }
        }

        @media (max-width: 768px) {
            .section-padding {
                padding: 50px 0;
            }
            .hero-expert {
                padding: 50px 0 40px;
            }
            .hero-expert h1 {
                font-size: 1.7rem;
            }
            .expert-card {
                padding: 28px 20px;
            }
            .timeline-item {
                gap: 16px;
            }
            .cta-banner {
                padding: 32px 20px;
            }
            .cta-banner h2 {
                font-size: 1.6rem;
            }
            .fab-floating {
                left: 16px;
                bottom: 80px;
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
            }
        }

        @media (max-width: 576px) {
            .hero-expert h1 {
                font-size: 1.4rem;
            }
            .hero-stats-row .stat-block {
                padding: 16px 20px;
            }
            .stat-block .stat-value {
                font-size: 1.4rem;
            }
        }

/* roulang page: category4 */
:root {
            --bg-deep: #051F14;
            --bg-forest: #0B2E1E;
            --gold-primary: #F59E0B;
            --gold-light: #FCD34D;
            --gold-gradient: linear-gradient(135deg, #F59E0B 0%, #FCD34D 100%);
            --red-dragon: #DC2626;
            --text-primary: #F8FAFC;
            --text-secondary: #D1FAE5;
            --text-muted: #A3A375;
            --card-bg: rgba(11, 46, 30, 0.7);
            --card-border: rgba(245, 158, 11, 0.3);
            --shadow-gold: 0 4px 24px rgba(245, 158, 11, 0.2);
            --shadow-gold-hover: 0 8px 40px rgba(245, 158, 11, 0.4);
            --border-radius: 16px;
            --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background-color: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button, input {
            font-family: inherit;
        }

        .btn {
            border-radius: 50px;
            padding: 12px 32px;
            font-weight: 600;
            letter-spacing: 0.3px;
            transition: var(--transition-base);
            text-transform: none;
            border: 2px solid transparent;
            position: relative;
            overflow: hidden;
        }

        .btn-primary-gold {
            background: var(--gold-gradient);
            color: var(--bg-deep);
            border: none;
            font-weight: 700;
            box-shadow: var(--shadow-gold);
        }

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

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

        .btn-outline-gold:hover {
            background: var(--gold-primary);
            color: var(--bg-deep);
            border-color: var(--gold-primary);
        }

        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .section-padding {
            padding: 80px 0;
        }

        /* Header / Navigation */
        .navbar-custom {
            background: rgba(5, 31, 20, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--card-border);
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 1030;
            transition: var(--transition-base);
        }

        .navbar-custom .navbar-brand {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--gold-primary);
            letter-spacing: -0.3px;
        }

        .navbar-custom .nav-link {
            color: var(--text-secondary);
            font-weight: 500;
            margin: 0 6px;
            padding: 8px 18px !important;
            border-radius: 50px;
            transition: var(--transition-base);
        }

        .navbar-custom .nav-link:hover,
        .navbar-custom .nav-link.active {
            color: var(--gold-primary);
            background: rgba(245, 158, 11, 0.08);
        }

        .nav-auth-btns .btn {
            padding: 10px 24px;
            font-size: 0.95rem;
        }

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

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(245, 158, 11, 1)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* Hero - Expert Profile */
        .hero-expert {
            position: relative;
            background: radial-gradient(ellipse at 30% 20%, #0B2E1E 0%, #051F14 70%);
            padding: 100px 0 80px;
            overflow: hidden;
        }

        .hero-expert::before {
            content: '';
            position: absolute;
            top: -200px;
            right: -300px;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.1) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-badge {
            display: inline-block;
            background: rgba(245, 158, 11, 0.15);
            color: var(--gold-primary);
            padding: 8px 24px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            letter-spacing: 1px;
            margin-bottom: 24px;
            border: 1px solid var(--card-border);
        }

        h1 {
            font-size: 2.75rem;
            font-weight: 900;
            line-height: 1.2;
            color: var(--text-primary);
            margin-bottom: 20px;
        }

        h1 .highlight {
            background: var(--gold-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-metrics {
            display: flex;
            gap: 40px;
            margin-top: 32px;
            flex-wrap: wrap;
        }

        .metric-block {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--border-radius);
            padding: 20px 28px;
            backdrop-filter: blur(10px);
        }

        .metric-block .metric-value {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--gold-primary);
            line-height: 1;
        }

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

        /* Section Styling */
        .section-header {
            margin-bottom: 48px;
        }

        .section-header h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .section-header p {
            color: var(--text-secondary);
            font-size: 1.05rem;
            max-width: 700px;
        }

        .section-dark {
            background-color: #041A10;
            border-radius: 24px;
            padding: 60px 40px;
        }

        /* Analyst Card */
        .analyst-card {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--border-radius);
            padding: 32px;
            transition: var(--transition-base);
            height: 100%;
            position: relative;
            overflow: hidden;
        }

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

        .analyst-card .rank-badge {
            position: absolute;
            top: 16px;
            right: 16px;
            background: var(--gold-gradient);
            color: var(--bg-deep);
            padding: 6px 16px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.8rem;
        }

        .analyst-avatar {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: var(--gold-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            color: var(--bg-deep);
            margin-bottom: 20px;
        }

        .analyst-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .analyst-stats {
            display: flex;
            gap: 24px;
            margin-top: 20px;
            padding-top: 20px;
            border-top: 1px solid var(--card-border);
        }

        .stat-mini {
            text-align: center;
        }

        .stat-mini .val {
            font-weight: 700;
            color: var(--gold-primary);
            font-size: 1.1rem;
        }

        /* Strategy Box */
        .strategy-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }

        .strategy-card {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--border-radius);
            padding: 28px;
            transition: var(--transition-base);
        }

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

        .strategy-icon {
            width: 56px;
            height: 56px;
            border-radius: 12px;
            background: rgba(245, 158, 11, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--gold-primary);
            margin-bottom: 20px;
        }

        .strategy-card h4 {
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            font-size: 1.1rem;
        }

        .strategy-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        /* Data Table */
        .data-comparison {
            background: var(--card-bg);
            border-radius: var(--border-radius);
            border: 1px solid var(--card-border);
            overflow: hidden;
        }

        .data-row {
            display: flex;
            padding: 20px 28px;
            border-bottom: 1px solid var(--card-border);
            align-items: center;
            transition: var(--transition-base);
        }

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

        .data-row:hover {
            background: rgba(245, 158, 11, 0.05);
        }

        .data-row .rank-col {
            width: 60px;
            font-weight: 800;
            color: var(--gold-primary);
            font-size: 1.2rem;
        }

        .data-row .name-col {
            flex: 2;
            font-weight: 600;
        }

        .data-row .rate-col {
            flex: 1;
            text-align: center;
            color: var(--gold-primary);
            font-weight: 700;
        }

        .data-row .return-col {
            flex: 1;
            text-align: right;
            font-weight: 600;
            color: var(--text-secondary);
        }

        /* Trust Bar */
        .trust-strip {
            background: linear-gradient(90deg, rgba(245, 158, 11, 0.08) 0%, rgba(245, 158, 11, 0.02) 100%);
            border-top: 1px solid var(--card-border);
            border-bottom: 1px solid var(--card-border);
            padding: 32px 0;
        }

        .trust-items {
            display: flex;
            justify-content: space-around;
            flex-wrap: wrap;
            gap: 20px;
        }

        .trust-item {
            text-align: center;
            color: var(--text-secondary);
            font-size: 0.9rem;
        }

        .trust-item i {
            color: var(--gold-primary);
            font-size: 1.5rem;
            margin-bottom: 8px;
            display: block;
        }

        /* FAQ */
        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--border-radius);
            margin-bottom: 16px;
            padding: 24px 28px;
            transition: var(--transition-base);
        }

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

        .faq-item h5 {
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .faq-item p {
            color: var(--text-muted);
            margin-bottom: 0;
        }

        /* CTA Section */
        .cta-analyst {
            background: linear-gradient(135deg, #0B2E1E 0%, #051F14 100%);
            border: 1px solid var(--card-border);
            border-radius: 24px;
            padding: 60px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-analyst::after {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(245,158,11,0.08) 0%, transparent 60%);
            animation: rotateGlow 10s linear infinite;
            pointer-events: none;
        }

        @keyframes rotateGlow {
            from { transform: rotate(0deg); }
            to { transform: rotate(360deg); }
        }

        .cta-analyst h2 {
            font-weight: 800;
            color: var(--text-primary);
            position: relative;
            z-index: 1;
        }

        .cta-analyst .btn {
            position: relative;
            z-index: 1;
        }

        /* Footer */
        .footer-custom {
            background: #030F0A;
            border-top: 1px solid var(--card-border);
            padding: 60px 0 30px;
            color: var(--text-muted);
        }

        .footer-brand {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--gold-primary);
        }

        .footer-link {
            color: var(--text-secondary);
            font-size: 0.95rem;
            transition: var(--transition-base);
        }

        .footer-link:hover {
            color: var(--gold-primary);
        }

        .footer-bottom {
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid var(--card-border);
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            h1 { font-size: 2.2rem; }
            .section-padding { padding: 60px 0; }
            .section-dark { padding: 40px 24px; }
        }

        @media (max-width: 768px) {
            h1 { font-size: 1.8rem; }
            .hero-metrics { gap: 16px; }
            .metric-block { padding: 14px 18px; flex: 1; min-width: 100px; }
            .metric-block .metric-value { font-size: 1.8rem; }
            .data-row { padding: 14px 16px; font-size: 0.9rem; }
            .section-dark { padding: 30px 16px; }
            .strategy-grid { grid-template-columns: 1fr; }
            .cta-analyst { padding: 40px 20px; }
        }

        @media (max-width: 520px) {
            .navbar-brand { font-size: 1.2rem; }
            .analyst-card { padding: 20px; }
            .analyst-stats { gap: 12px; }
            .hero-metrics { flex-direction: column; }
        }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}