/* roulang page: index */
:root {
  --primary-gold: #C5A059;
  --accent-amber: #FFBF00;
  --bg-obsidian: #121212;
  --bg-charcoal: #1C1C1E;
  --text-warm-white: #F5F5F7;
  --text-muted-gold: #D4AC0D;
  --border-bronze: rgba(197, 160, 89, 0.3);
  --shadow-gold: 0 4px 20px rgba(255, 191, 0, 0.15);
  --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.4);
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --spacing-section: 4rem;
  --font-display: 'Georgia', 'Times New Roman', serif;
}

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

body {
  margin: 0;
  font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
  background-color: var(--bg-obsidian);
  color: var(--text-warm-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--accent-amber);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

.container-custom {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section-spacing {
  padding: var(--spacing-section) 0;
}

.bg-charcoal-section {
  background-color: var(--bg-charcoal);
}

.text-muted-gold {
  color: var(--text-muted-gold) !important;
}

.text-warm-white {
  color: var(--text-warm-white) !important;
}

.btn-gold {
  background: linear-gradient(135deg, var(--primary-gold), var(--accent-amber));
  color: #121212;
  border: none;
  border-radius: 50px;
  padding: 0.7rem 2rem;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.5px;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-gold);
  text-transform: uppercase;
}

.btn-gold:hover {
  background: linear-gradient(135deg, var(--accent-amber), var(--primary-gold));
  box-shadow: 0 6px 24px rgba(255, 191, 0, 0.35);
  transform: translateY(-2px);
  color: #121212;
}

.btn-outline-gold {
  background: transparent;
  border: 2px solid var(--primary-gold);
  color: var(--primary-gold);
  border-radius: 50px;
  padding: 0.6rem 1.8rem;
  font-weight: 600;
  font-size: 0.9rem;
  transition: all 0.3s ease;
}

.btn-outline-gold:hover {
  background: var(--primary-gold);
  color: #121212;
  border-color: var(--primary-gold);
}

.btn-gold, .btn-outline-gold {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.navbar-custom {
  background-color: rgba(18, 18, 18, 0.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-bronze);
  padding: 0.8rem 0;
  position: sticky;
  top: 0;
  z-index: 1050;
}

.navbar-custom .navbar-brand {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--primary-gold);
  letter-spacing: 0.5px;
}

.navbar-custom .nav-link {
  color: var(--text-warm-white);
  font-weight: 500;
  margin: 0 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  transition: all 0.25s;
  font-size: 0.95rem;
}

.navbar-custom .nav-link:hover,
.navbar-custom .nav-link.active {
  color: var(--accent-amber);
  background: rgba(255, 191, 0, 0.08);
}

.navbar-custom .btn-login-text {
  color: var(--text-warm-white);
  font-weight: 500;
  margin-right: 0.8rem;
  background: none;
  border: none;
  font-size: 0.9rem;
}

.navbar-custom .btn-signup-nav {
  background: var(--accent-amber);
  color: #121212;
  border: none;
  border-radius: 50px;
  padding: 0.5rem 1.6rem;
  font-weight: 700;
  font-size: 0.9rem;
}

.hero-section {
  background: linear-gradient(135deg, rgba(18, 18, 18, 0.8) 0%, rgba(28, 28, 30, 0.9) 100%), url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
  min-height: 85vh;
  display: flex;
  align-items: center;
  position: relative;
}

.hero-title {
  font-family: var(--font-display);
  font-size: 3.2rem;
  font-weight: 700;
  color: var(--primary-gold);
  line-height: 1.25;
}

.hero-sub {
  font-size: 1.15rem;
  color: #D5D8DC;
  max-width: 650px;
  margin: 1.5rem 0 2rem;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 191, 0, 0.15);
  border: 1px solid var(--border-bronze);
  border-radius: 50px;
  padding: 0.5rem 1.4rem;
  font-size: 0.9rem;
  color: var(--accent-amber);
  font-weight: 600;
}

.hero-stats {
  display: flex;
  gap: 2rem;
  margin-top: 2.5rem;
}

.hero-stats .stat-item strong {
  font-size: 2rem;
  color: var(--accent-amber);
  display: block;
}

.hero-panel {
  background: rgba(28, 28, 30, 0.8);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-bronze);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--primary-gold);
  margin-bottom: 0.75rem;
}

.section-subtitle {
  color: #D5D8DC;
  font-size: 1.05rem;
  max-width: 700px;
}

.card-gold {
  background: var(--bg-charcoal);
  border: 1px solid var(--border-bronze);
  border-radius: var(--radius-md);
  padding: 1.8rem;
  transition: all 0.3s;
  height: 100%;
}

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

.card-gold .icon-wrap {
  width: 48px;
  height: 48px;
  background: rgba(197, 160, 89, 0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-amber);
  font-size: 1.5rem;
  margin-bottom: 1.2rem;
}

.compare-table th {
  background: var(--bg-obsidian);
  color: var(--primary-gold);
  border-bottom: 2px solid var(--primary-gold);
}

.compare-table td, .compare-table th {
  padding: 1rem;
  vertical-align: middle;
  border-color: var(--border-bronze);
  color: var(--text-warm-white);
}

.compare-table .highlight-row {
  background: rgba(255, 191, 0, 0.08);
}

.media-scroll-wrapper {
  display: flex;
  gap: 1.5rem;
  overflow-x: auto;
  padding-bottom: 1rem;
}

.media-scroll-card {
  flex: 0 0 300px;
  background: var(--bg-charcoal);
  border: 1px solid var(--border-bronze);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all 0.3s;
}

.media-scroll-card:hover {
  border-color: var(--accent-amber);
}

.opinion-card {
  background: var(--bg-charcoal);
  border-left: 4px solid var(--accent-amber);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.trust-badge-list {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  justify-content: center;
  align-items: center;
}

.trust-badge-list .badge-item {
  background: rgba(255, 191, 0, 0.05);
  border: 1px solid var(--border-bronze);
  border-radius: 50px;
  padding: 0.7rem 1.8rem;
  font-weight: 600;
  color: var(--text-muted-gold);
}

.guide-list li {
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--border-bronze);
  display: flex;
  align-items: baseline;
  gap: 0.8rem;
}

.guide-list li i {
  color: var(--accent-amber);
}

.footer-custom {
  background: #0A0A0A;
  border-top: 1px solid var(--border-bronze);
  padding: 2.5rem 0;
  font-size: 0.9rem;
  color: #A6ACAF;
}

.footer-custom a {
  color: #A6ACAF;
}

.footer-custom a:hover {
  color: var(--accent-amber);
}

.fab-left {
  position: fixed;
  left: 1.5rem;
  bottom: 6rem;
  z-index: 1060;
  width: 56px;
  height: 56px;
  background: var(--bg-charcoal);
  border: 2px solid var(--primary-gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-amber);
  font-size: 1.6rem;
  box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
  transition: all 0.3s;
  backdrop-filter: blur(8px);
}

.fab-left:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 28px rgba(255, 215, 0, 0.5);
}

.fab-left .notification-dot {
  position: absolute;
  top: 2px;
  right: 2px;
  width: 14px;
  height: 14px;
  background: #D32F2F;
  border-radius: 50%;
  border: 2px solid var(--bg-obsidian);
  animation: blink-dot 1.4s infinite;
}

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

@media (max-width: 991px) {
  .hero-title { font-size: 2.4rem; }
  .hero-stats { flex-wrap: wrap; gap: 1rem; }
}

@media (max-width: 576px) {
  .hero-title { font-size: 1.9rem; }
  .hero-section { min-height: auto; padding: 5rem 0 3rem; }
  .section-title { font-size: 1.7rem; }
}

/* roulang page: article */
:root {
            --primary-gold: #C5A059;
            --accent-amber: #FFBF00;
            --bg-obsidian: #121212;
            --bg-charcoal: #1C1C1E;
            --text-warm-white: #F5F5F7;
            --text-muted-gold: #D4AC0D;
            --border-bronze: rgba(197, 160, 89, 0.3);
            --shadow-gold: 0 4px 20px rgba(255, 191, 0, 0.15);
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.4);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --spacing-section: 4rem;
            --font-display: 'Georgia', 'Times New Roman', serif;
        }

        body {
            margin: 0;
            font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            background-color: var(--bg-obsidian);
            color: var(--text-warm-white);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: var(--accent-amber);
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        .section-spacing {
            padding: var(--spacing-section) 0;
        }

        .bg-charcoal-section {
            background-color: var(--bg-charcoal);
        }

        .text-muted-gold {
            color: var(--text-muted-gold) !important;
        }

        .text-warm-white {
            color: var(--text-warm-white) !important;
        }

        .btn-gold {
            background: linear-gradient(135deg, var(--primary-gold), var(--accent-amber));
            color: #121212;
            border: none;
            border-radius: 50px;
            padding: 0.7rem 2rem;
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.5px;
            transition: all 0.3s ease;
            box-shadow: var(--shadow-gold);
            text-transform: uppercase;
        }

        .btn-gold:hover {
            background: linear-gradient(135deg, var(--accent-amber), var(--primary-gold));
            box-shadow: 0 6px 24px rgba(255, 191, 0, 0.35);
            transform: translateY(-2px);
            color: #121212;
        }

        .btn-outline-gold {
            background: transparent;
            border: 2px solid var(--primary-gold);
            color: var(--primary-gold);
            border-radius: 50px;
            padding: 0.6rem 1.8rem;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all 0.3s ease;
        }

        .btn-outline-gold:hover {
            background: var(--primary-gold);
            color: #121212;
            border-color: var(--primary-gold);
        }

        .btn-gold,
        .btn-outline-gold {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }

        .navbar-custom {
            background-color: rgba(18, 18, 18, 0.92);
            backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-bronze);
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 1050;
        }

        .navbar-custom .navbar-brand {
            font-family: var(--font-display);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary-gold);
            letter-spacing: 0.5px;
        }

        .navbar-custom .nav-link {
            color: var(--text-warm-white);
            font-weight: 500;
            margin: 0 0.5rem;
            padding: 0.5rem 1rem;
            border-radius: var(--radius-sm);
            transition: all 0.25s;
            font-size: 0.95rem;
        }

        .navbar-custom .nav-link:hover,
        .navbar-custom .nav-link.active {
            color: var(--accent-amber);
            background: rgba(255, 191, 0, 0.08);
        }

        .navbar-custom .btn-login-text {
            color: var(--text-warm-white);
            font-weight: 500;
            margin-right: 0.8rem;
            background: none;
            border: none;
            font-size: 0.9rem;
        }

        .navbar-custom .btn-signup-nav {
            background: var(--accent-amber);
            color: #121212;
            border: none;
            border-radius: 50px;
            padding: 0.5rem 1.6rem;
            font-weight: 700;
            font-size: 0.9rem;
        }

        .article-banner-section {
            background: linear-gradient(135deg, rgba(18, 18, 18, 0.85) 0%, rgba(28, 28, 30, 0.92) 100%), url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
            min-height: 40vh;
            display: flex;
            align-items: center;
            position: relative;
            border-bottom: 1px solid var(--border-bronze);
        }

        .article-banner-section h1 {
            font-family: var(--font-display);
            font-size: 2.8rem;
            font-weight: 700;
            color: var(--primary-gold);
            line-height: 1.3;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            color: #A6ACAF;
            font-size: 0.95rem;
            margin-top: 1rem;
        }

        .article-meta i {
            color: var(--accent-amber);
            margin-right: 0.4rem;
        }

        .article-content-wrapper {
            max-width: 850px;
            margin: 0 auto;
            padding: 3rem 1.5rem;
        }

        .article-content-wrapper h2 {
            font-family: var(--font-display);
            color: var(--primary-gold);
            margin-top: 2rem;
            margin-bottom: 1rem;
            font-size: 1.8rem;
            font-weight: 700;
        }

        .article-content-wrapper h3 {
            color: var(--text-muted-gold);
            margin-top: 1.8rem;
            margin-bottom: 0.8rem;
            font-size: 1.4rem;
            font-weight: 600;
        }

        .article-content-wrapper p {
            color: #D5D8DC;
            margin-bottom: 1.2rem;
            line-height: 1.7;
            font-size: 1.05rem;
        }

        .article-content-wrapper ul,
        .article-content-wrapper ol {
            padding-left: 1.5rem;
            margin-bottom: 1.5rem;
            color: #D5D8DC;
        }

        .article-content-wrapper li {
            margin-bottom: 0.5rem;
        }

        .article-content-wrapper blockquote {
            border-left: 4px solid var(--accent-amber);
            background: rgba(255, 191, 0, 0.05);
            padding: 1.2rem 1.8rem;
            margin: 2rem 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--text-muted-gold);
        }

        .article-content-wrapper img {
            border-radius: var(--radius-md);
            margin: 2rem 0;
            border: 1px solid var(--border-bronze);
            max-width: 100%;
            height: auto;
        }

        .article-content-wrapper .highlight-box {
            background: rgba(18, 18, 18, 0.6);
            border: 1px solid var(--border-bronze);
            border-radius: var(--radius-md);
            padding: 1.8rem;
            margin: 2rem 0;
        }

        .article-cta-card {
            background: linear-gradient(135deg, var(--bg-charcoal), #2A2A2E);
            border: 1px solid var(--primary-gold);
            border-radius: var(--radius-lg);
            padding: 2.5rem;
            margin-top: 3rem;
            text-align: center;
        }

        .article-cta-card h3 {
            font-family: var(--font-display);
            color: var(--primary-gold);
            margin-bottom: 1rem;
        }

        .related-links {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            margin-top: 2rem;
        }

        .related-links a {
            background: rgba(197, 160, 89, 0.1);
            border: 1px solid var(--border-bronze);
            border-radius: 50px;
            padding: 0.5rem 1.5rem;
            color: var(--text-muted-gold);
            font-size: 0.9rem;
            transition: all 0.3s;
        }

        .related-links a:hover {
            background: var(--primary-gold);
            color: #121212;
            border-color: var(--primary-gold);
        }

        .not-found-box {
            text-align: center;
            padding: 4rem 2rem;
            background: var(--bg-charcoal);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-bronze);
            margin: 3rem auto;
            max-width: 650px;
        }

        .not-found-box i {
            font-size: 3rem;
            color: var(--text-muted-gold);
            margin-bottom: 1.5rem;
        }

        .not-found-box p {
            color: #D5D8DC;
            font-size: 1.1rem;
            margin-bottom: 2rem;
        }

        .footer-custom {
            background: #0A0A0A;
            border-top: 1px solid var(--border-bronze);
            padding: 2.5rem 0;
            font-size: 0.95rem;
        }

        .footer-custom h5,
        .footer-custom h6 {
            font-family: var(--font-display);
            color: var(--primary-gold);
        }

        .footer-custom ul li a {
            color: #A6ACAF;
            padding: 0.25rem 0;
            display: inline-block;
        }

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

        .fab-left {
            position: fixed;
            left: 1.5rem;
            bottom: 6rem;
            z-index: 1040;
            width: 50px;
            height: 50px;
            background: linear-gradient(135deg, var(--primary-gold), var(--accent-amber));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #121212;
            font-size: 1.4rem;
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
            transition: all 0.3s ease;
            cursor: pointer;
            opacity: 0.7;
        }

        .fab-left:hover {
            opacity: 1;
            transform: scale(1.1);
        }

        @media (max-width: 768px) {
            .article-banner-section h1 {
                font-size: 2rem;
            }

            .article-meta {
                flex-direction: column;
                gap: 0.5rem;
            }

            .article-content-wrapper {
                padding: 2rem 1rem;
            }

            .article-content-wrapper h2 {
                font-size: 1.5rem;
            }

            .related-links a {
                padding: 0.4rem 1.2rem;
                font-size: 0.85rem;
            }

            .fab-left {
                left: 1rem;
                bottom: 5rem;
                width: 45px;
                height: 45px;
                font-size: 1.2rem;
            }
        }

        @media (max-width: 520px) {
            .article-banner-section {
                min-height: 30vh;
            }

            .article-banner-section h1 {
                font-size: 1.6rem;
            }

            .article-cta-card {
                padding: 1.5rem;
            }

            .article-content-wrapper blockquote {
                padding: 1rem 1.2rem;
            }
        }

/* roulang page: category1 */
:root {
            --primary-gold: #C5A059;
            --accent-amber: #FFBF00;
            --bg-obsidian: #121212;
            --bg-charcoal: #1C1C1E;
            --text-warm-white: #F5F5F7;
            --text-muted-gold: #D4AC0D;
            --border-bronze: rgba(197, 160, 89, 0.3);
            --shadow-gold: 0 4px 20px rgba(255, 191, 0, 0.15);
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.4);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --spacing-section: 4rem;
            --font-display: 'Georgia', 'Times New Roman', serif;
        }
        body {
            margin: 0;
            font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            background-color: var(--bg-obsidian);
            color: var(--text-warm-white);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--accent-amber);
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: var(--primary-gold);
        }
        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .section-spacing {
            padding: var(--spacing-section) 0;
        }
        .bg-charcoal-section {
            background-color: var(--bg-charcoal);
        }
        .text-muted-gold {
            color: var(--text-muted-gold) !important;
        }
        .text-warm-white {
            color: var(--text-warm-white) !important;
        }
        .btn-gold {
            background: linear-gradient(135deg, var(--primary-gold), var(--accent-amber));
            color: #121212;
            border: none;
            border-radius: 50px;
            padding: 0.7rem 2rem;
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.5px;
            transition: all 0.3s ease;
            box-shadow: var(--shadow-gold);
            text-transform: uppercase;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }
        .btn-gold:hover {
            background: linear-gradient(135deg, var(--accent-amber), var(--primary-gold));
            box-shadow: 0 6px 24px rgba(255, 191, 0, 0.35);
            transform: translateY(-2px);
            color: #121212;
        }
        .btn-outline-gold {
            background: transparent;
            border: 2px solid var(--primary-gold);
            color: var(--primary-gold);
            border-radius: 50px;
            padding: 0.6rem 1.8rem;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }
        .btn-outline-gold:hover {
            background: var(--primary-gold);
            color: #121212;
            border-color: var(--primary-gold);
        }
        .navbar-custom {
            background-color: rgba(18, 18, 18, 0.92);
            backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-bronze);
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 1050;
        }
        .navbar-custom .navbar-brand {
            font-family: var(--font-display);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary-gold);
            letter-spacing: 0.5px;
        }
        .navbar-custom .nav-link {
            color: var(--text-warm-white);
            font-weight: 500;
            margin: 0 0.5rem;
            padding: 0.5rem 1rem;
            border-radius: var(--radius-sm);
            transition: all 0.25s;
            font-size: 0.95rem;
        }
        .navbar-custom .nav-link:hover,
        .navbar-custom .nav-link.active {
            color: var(--accent-amber);
            background: rgba(255, 191, 0, 0.08);
        }
        .navbar-custom .btn-login-text {
            color: var(--text-warm-white);
            font-weight: 500;
            margin-right: 0.8rem;
            background: none;
            border: none;
            font-size: 0.9rem;
        }
        .navbar-custom .btn-signup-nav {
            background: var(--accent-amber);
            color: #121212;
            border: none;
            border-radius: 50px;
            padding: 0.5rem 1.6rem;
            font-weight: 700;
            font-size: 0.9rem;
        }
        .section-title {
            font-family: var(--font-display);
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--primary-gold);
            margin-bottom: 0.75rem;
        }
        .section-subtitle {
            color: #D5D8DC;
            font-size: 1.05rem;
            max-width: 700px;
        }
        .card-gold {
            background: var(--bg-charcoal);
            border: 1px solid var(--border-bronze);
            border-radius: var(--radius-md);
            padding: 1.8rem;
            transition: all 0.3s;
            height: 100%;
        }
        .card-gold:hover {
            border-color: var(--accent-amber);
            box-shadow: var(--shadow-gold);
            transform: translateY(-4px);
        }
        .card-gold .icon-wrap {
            width: 48px;
            height: 48px;
            background: rgba(197, 160, 89, 0.15);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-amber);
            font-size: 1.5rem;
            margin-bottom: 1.2rem;
        }
        .trust-badge-list {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            justify-content: center;
            align-items: center;
        }
        .trust-badge-list .badge-item {
            background: rgba(255, 191, 0, 0.05);
            border: 1px solid var(--border-bronze);
            border-radius: 50px;
            padding: 0.7rem 1.8rem;
            font-weight: 600;
            color: var(--text-muted-gold);
        }
        .compare-table-wrap {
            overflow-x: auto;
        }
        .compare-table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0 12px;
        }
        .compare-table thead th {
            background: var(--bg-charcoal);
            color: var(--accent-amber);
            padding: 1rem;
            text-align: left;
            font-weight: 700;
            border-bottom: 2px solid var(--primary-gold);
        }
        .compare-table tbody td {
            background: var(--bg-charcoal);
            padding: 1rem;
            color: #D5D8DC;
            border-bottom: 1px solid var(--border-bronze);
        }
        .compare-table .highlight-row td {
            background: rgba(255, 191, 0, 0.06);
            border-left: 3px solid var(--accent-amber);
        }
        .stat-block {
            background: var(--bg-charcoal);
            border: 1px solid var(--border-bronze);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            text-align: center;
            transition: all 0.3s;
        }
        .stat-block:hover {
            border-color: var(--accent-amber);
        }
        .stat-block .stat-number {
            font-family: var(--font-display);
            font-size: 2.6rem;
            font-weight: 700;
            color: var(--accent-amber);
            display: block;
        }
        .footer-custom {
            background: #0A0A0A;
            border-top: 1px solid var(--border-bronze);
            padding: 2.5rem 0;
            color: #D5D8DC;
        }
        .footer-custom a {
            color: #D5D8DC;
            text-decoration: none;
        }
        .footer-custom a:hover {
            color: var(--accent-amber);
        }
        .fab-left {
            position: fixed;
            left: 1.5rem;
            bottom: 5rem;
            z-index: 1040;
        }
        .fab-left .fab-btn {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--bg-charcoal);
            border: 2px solid var(--primary-gold);
            color: var(--accent-amber);
            font-size: 1.4rem;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 16px rgba(197, 160, 89, 0.3);
            transition: all 0.3s;
            animation: floatFab 3s ease-in-out infinite;
            opacity: 0.75;
            cursor: pointer;
        }
        .fab-left .fab-btn:hover {
            transform: scale(1.1);
            opacity: 1;
            box-shadow: 0 6px 20px rgba(197, 160, 89, 0.5);
            animation: none;
        }
        .fab-left .fab-btn:active {
            transform: scale(0.95) translateY(2px);
        }
        .fab-left .fab-notification {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 14px;
            height: 14px;
            background: #D32F2F;
            border: 2px solid #121212;
            border-radius: 50%;
            animation: blinkDot 1.2s ease-in-out infinite;
        }
        @keyframes floatFab {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }
        @keyframes blinkDot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }
        @media (max-width: 992px) {
            .section-title {
                font-size: 1.7rem;
            }
            .hero-stats {
                flex-wrap: wrap;
                gap: 1rem;
            }
            .compare-table thead th,
            .compare-table tbody td {
                font-size: 0.85rem;
                padding: 0.7rem;
            }
        }
        @media (max-width: 768px) {
            :root {
                --spacing-section: 2.5rem;
            }
            .navbar-custom .btn-login-text {
                display: none;
            }
            .stat-block .stat-number {
                font-size: 2rem;
            }
        }

/* roulang page: category2 */
:root {
  --primary-gold: #C5A059;
  --accent-amber: #FFBF00;
  --bg-obsidian: #121212;
  --bg-charcoal: #1C1C1E;
  --text-warm-white: #F5F5F7;
  --text-muted-gold: #D4AC0D;
  --border-bronze: rgba(197, 160, 89, 0.3);
  --shadow-gold: 0 4px 20px rgba(255, 191, 0, 0.15);
  --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.4);
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --spacing-section: 4rem;
  --font-display: 'Georgia', 'Times New Roman', serif;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
  background-color: var(--bg-obsidian);
  color: var(--text-warm-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
a {
  color: var(--accent-amber);
  text-decoration: none;
  transition: color 0.2s ease;
}
a:hover {
  color: var(--primary-gold);
}
.container-custom {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}
.section-spacing {
  padding: var(--spacing-section) 0;
}
.bg-charcoal-section {
  background-color: var(--bg-charcoal);
}
.text-muted-gold {
  color: var(--text-muted-gold) !important;
}
.text-warm-white {
  color: var(--text-warm-white) !important;
}
.btn-gold {
  background: linear-gradient(135deg, var(--primary-gold), var(--accent-amber));
  color: #121212;
  border: none;
  border-radius: 50px;
  padding: 0.7rem 2rem;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.5px;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-gold);
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  cursor: pointer;
}
.btn-gold:hover {
  background: linear-gradient(135deg, var(--accent-amber), var(--primary-gold));
  box-shadow: 0 6px 24px rgba(255, 191, 0, 0.35);
  transform: translateY(-2px);
  color: #121212;
}
.btn-outline-gold {
  background: transparent;
  border: 2px solid var(--primary-gold);
  color: var(--primary-gold);
  border-radius: 50px;
  padding: 0.6rem 1.8rem;
  font-weight: 600;
  font-size: 0.9rem;
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  cursor: pointer;
}
.btn-outline-gold:hover {
  background: var(--primary-gold);
  color: #121212;
  border-color: var(--primary-gold);
}
.navbar-custom {
  background-color: rgba(18, 18, 18, 0.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-bronze);
  padding: 0.8rem 0;
  position: sticky;
  top: 0;
  z-index: 1050;
}
.navbar-custom .navbar-brand {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--primary-gold);
  letter-spacing: 0.5px;
}
.navbar-custom .nav-link {
  color: var(--text-warm-white);
  font-weight: 500;
  margin: 0 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  transition: all 0.25s;
  font-size: 0.95rem;
}
.navbar-custom .nav-link:hover,
.navbar-custom .nav-link.active {
  color: var(--accent-amber);
  background: rgba(255, 191, 0, 0.08);
}
.navbar-custom .btn-login-text {
  color: var(--text-warm-white);
  font-weight: 500;
  margin-right: 0.8rem;
  background: none;
  border: none;
  font-size: 0.9rem;
  cursor: pointer;
}
.navbar-custom .btn-signup-nav {
  background: var(--accent-amber);
  color: #121212;
  border: none;
  border-radius: 50px;
  padding: 0.5rem 1.6rem;
  font-weight: 700;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.3s;
}
.navbar-custom .btn-signup-nav:hover {
  background: var(--primary-gold);
}
.navbar-toggler {
  color: var(--text-warm-white);
}
#mobileNav {
  background: rgba(18, 18, 18, 0.98);
  backdrop-filter: blur(14px);
}
.hero-section {
  background: linear-gradient(135deg, rgba(18, 18, 18, 0.85) 0%, rgba(28, 28, 30, 0.9) 100%), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  min-height: 70vh;
  display: flex;
  align-items: center;
  position: relative;
}
.hero-title {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  color: var(--primary-gold);
  line-height: 1.2;
}
.hero-sub {
  font-size: 1.1rem;
  color: #D5D8DC;
  max-width: 650px;
  margin: 1.5rem 0 2rem;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 191, 0, 0.15);
  border: 1px solid var(--border-bronze);
  border-radius: 50px;
  padding: 0.5rem 1.4rem;
  font-size: 0.9rem;
  color: var(--accent-amber);
  font-weight: 600;
  margin-bottom: 2rem;
}
.hero-stats {
  display: flex;
  gap: 2.5rem;
  margin-top: 2rem;
}
.hero-stats .stat-item strong {
  font-size: 2.2rem;
  color: var(--accent-amber);
  display: block;
}
.hero-stats .stat-item span {
  color: #D5D8DC;
  font-size: 0.9rem;
}
.hero-panel {
  background: rgba(28, 28, 30, 0.8);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-bronze);
  border-radius: var(--radius-lg);
  padding: 2rem;
}
.icon-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-bottom: 1.5rem;
}
.icon-grid .icon-item {
  width: 40px;
  height: 40px;
  background: rgba(197, 160, 89, 0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-amber);
  font-size: 1.2rem;
}
.status-bar {
  background: rgba(0,0,0,0.3);
  border-radius: 50px;
  padding: 0.8rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.5rem;
  border: 1px solid var(--border-bronze);
}
.status-dot {
  width: 10px;
  height: 10px;
  background: #2ecc71;
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(46, 204, 113, 0.4); }
  70% { box-shadow: 0 0 0 8px rgba(46, 204, 113, 0); }
  100% { box-shadow: 0 0 0 0 rgba(46, 204, 113, 0); }
}
.section-title {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--primary-gold);
  margin-bottom: 0.75rem;
}
.section-subtitle {
  color: #D5D8DC;
  font-size: 1.05rem;
  max-width: 700px;
}
.card-gold {
  background: var(--bg-charcoal);
  border: 1px solid var(--border-bronze);
  border-radius: var(--radius-md);
  padding: 1.8rem;
  transition: all 0.3s;
  height: 100%;
}
.card-gold:hover {
  border-color: var(--accent-amber);
  box-shadow: var(--shadow-gold);
  transform: translateY(-4px);
}
.card-gold .icon-wrap {
  width: 48px;
  height: 48px;
  background: rgba(197, 160, 89, 0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-amber);
  font-size: 1.5rem;
  margin-bottom: 1.2rem;
}
.guide-list {
  list-style: none;
  padding: 0;
}
.guide-list li {
  padding: 0.8rem 0;
  border-bottom: 1px solid var(--border-bronze);
  display: flex;
  align-items: baseline;
  gap: 0.8rem;
}
.guide-list li i {
  color: var(--accent-amber);
  margin-top: 0.25rem;
}
.opinion-card {
  background: var(--bg-charcoal);
  border-left: 4px solid var(--accent-amber);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}
.media-scroll-wrapper {
  display: flex;
  gap: 1.5rem;
  overflow-x: auto;
  padding-bottom: 1rem;
}
.media-scroll-card {
  flex: 0 0 300px;
  background: var(--bg-charcoal);
  border: 1px solid var(--border-bronze);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all 0.3s;
}
.media-scroll-card:hover {
  border-color: var(--accent-amber);
}
.faq-accordion .accordion-button {
  background: var(--bg-charcoal);
  color: var(--text-warm-white);
  border: 1px solid var(--border-bronze);
  font-weight: 600;
  box-shadow: none;
}
.faq-accordion .accordion-button:not(.collapsed) {
  background: rgba(197, 160, 89, 0.1);
  color: var(--accent-amber);
  border-color: var(--accent-amber);
}
.faq-accordion .accordion-body {
  background: var(--bg-obsidian);
  color: #D5D8DC;
  border: 1px solid var(--border-bronze);
  border-top: none;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
}
.cta-section {
  background: linear-gradient(135deg, rgba(18, 18, 18, 0.9) 0%, rgba(28, 28, 30, 0.95) 100%), url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
  border-radius: var(--radius-lg);
  padding: 3rem;
  border: 1px solid var(--border-bronze);
}
.footer-custom {
  background: #0A0A0A;
  border-top: 1px solid var(--border-bronze);
  padding: 2.5rem 0;
  font-size: 0.9rem;
}
.footer-custom h5, .footer-custom h6 {
  color: var(--text-muted-gold);
  font-weight: 700;
}
.footer-custom ul li a {
  color: #D5D8DC;
  transition: color 0.2s;
}
.footer-custom ul li a:hover {
  color: var(--accent-amber);
}
.fab-left {
  position: fixed;
  left: 1.5rem;
  bottom: 6rem;
  z-index: 1000;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--bg-charcoal);
  border: 2px solid transparent;
  background-clip: padding-box;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-amber);
  font-size: 1.4rem;
  cursor: pointer;
  transition: all 0.3s;
  box-shadow: 0 4px 20px rgba(255, 191, 0, 0.3);
  opacity: 0.7;
}
.fab-left::before {
  content: '';
  position: absolute;
  top: -2px; left: -2px; right: -2px; bottom: -2px;
  border-radius: 50%;
  background: linear-gradient(135deg, #00F0FF, #CCFF00);
  z-index: -1;
}
.fab-left:hover {
  opacity: 1;
  transform: scale(1.1);
  box-shadow: 0 0 25px rgba(0, 240, 255, 0.5);
}
.fab-left .notification-dot {
  position: absolute;
  top: 2px;
  right: 2px;
  width: 12px;
  height: 12px;
  background: #FF007F;
  border-radius: 50%;
  animation: neon-blink 1.5s infinite;
}
@keyframes neon-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}
@media (max-width: 768px) {
  .hero-title {
    font-size: 2.2rem;
  }
  .hero-stats {
    gap: 1.5rem;
    flex-wrap: wrap;
  }
  .hero-stats .stat-item strong {
    font-size: 1.6rem;
  }
  .icon-grid .icon-item {
    width: 36px;
    height: 36px;
    font-size: 1rem;
  }
  .cta-section {
    padding: 2rem 1.5rem;
  }
  .section-title {
    font-size: 1.8rem;
  }
}

/* roulang page: category3 */
:root {
      --primary-gold: #C5A059;
      --accent-amber: #FFBF00;
      --bg-obsidian: #121212;
      --bg-charcoal: #1C1C1E;
      --text-warm-white: #F5F5F7;
      --text-muted-gold: #D4AC0D;
      --border-bronze: rgba(197, 160, 89, 0.3);
      --shadow-gold: 0 4px 20px rgba(255, 191, 0, 0.15);
      --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.4);
      --radius-lg: 16px;
      --radius-md: 12px;
      --radius-sm: 8px;
      --spacing-section: 4rem;
      --font-display: 'Georgia', 'Times New Roman', serif;
    }
    body {
      margin: 0;
      font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
      background-color: var(--bg-obsidian);
      color: var(--text-warm-white);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    a {
      color: var(--accent-amber);
      text-decoration: none;
      transition: color 0.2s ease;
    }
    a:hover {
      color: var(--primary-gold);
    }
    .container-custom {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 1.5rem;
    }
    .section-spacing {
      padding: var(--spacing-section) 0;
    }
    .bg-charcoal-section {
      background-color: var(--bg-charcoal);
    }
    .bg-obsidian-section {
      background-color: var(--bg-obsidian);
    }
    .text-muted-gold {
      color: var(--text-muted-gold) !important;
    }
    .text-warm-white {
      color: var(--text-warm-white) !important;
    }
    .text-primary-gold {
      color: var(--primary-gold) !important;
    }
    .btn-gold {
      background: linear-gradient(135deg, var(--primary-gold), var(--accent-amber));
      color: #121212;
      border: none;
      border-radius: 50px;
      padding: 0.7rem 2rem;
      font-weight: 700;
      font-size: 0.95rem;
      letter-spacing: 0.5px;
      transition: all 0.3s ease;
      box-shadow: var(--shadow-gold);
      text-transform: uppercase;
    }
    .btn-gold:hover {
      background: linear-gradient(135deg, var(--accent-amber), var(--primary-gold));
      box-shadow: 0 6px 24px rgba(255, 191, 0, 0.35);
      transform: translateY(-2px);
      color: #121212;
    }
    .btn-outline-gold {
      background: transparent;
      border: 2px solid var(--primary-gold);
      color: var(--primary-gold);
      border-radius: 50px;
      padding: 0.6rem 1.8rem;
      font-weight: 600;
      font-size: 0.9rem;
      transition: all 0.3s ease;
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
    }
    .btn-outline-gold:hover {
      background: var(--primary-gold);
      color: #121212;
      border-color: var(--primary-gold);
    }
    .btn-gold, .btn-outline-gold {
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
    }
    .navbar-custom {
      background-color: rgba(18, 18, 18, 0.92);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border-bronze);
      padding: 0.8rem 0;
      position: sticky;
      top: 0;
      z-index: 1050;
    }
    .navbar-custom .navbar-brand {
      font-family: var(--font-display);
      font-size: 1.35rem;
      font-weight: 700;
      color: var(--primary-gold);
      letter-spacing: 0.5px;
    }
    .navbar-custom .nav-link {
      color: var(--text-warm-white);
      font-weight: 500;
      margin: 0 0.3rem;
      padding: 0.5rem 1rem;
      border-radius: var(--radius-sm);
      transition: all 0.25s;
      font-size: 0.95rem;
    }
    .navbar-custom .nav-link:hover,
    .navbar-custom .nav-link.active {
      color: var(--accent-amber);
      background: rgba(255, 191, 0, 0.08);
    }
    .navbar-custom .btn-login-text {
      color: var(--text-warm-white);
      font-weight: 500;
      margin-right: 0.8rem;
      background: none;
      border: none;
      font-size: 0.9rem;
    }
    .navbar-custom .btn-signup-nav {
      background: var(--accent-amber);
      color: #121212;
      border: none;
      border-radius: 50px;
      padding: 0.5rem 1.6rem;
      font-weight: 700;
      font-size: 0.9rem;
    }
    .footer-custom {
      background: #0A0A0A;
      border-top: 1px solid var(--border-bronze);
      padding: 2.5rem 0;
      font-size: 0.9rem;
      color: #A6ACAF;
    }
    .footer-custom h5, .footer-custom h6 {
      color: var(--text-muted-gold);
    }
    .footer-custom a {
      color: #A6ACAF;
      text-decoration: none;
    }
    .footer-custom a:hover {
      color: var(--accent-amber);
    }
    .section-title {
      font-family: var(--font-display);
      font-size: 2.2rem;
      font-weight: 700;
      color: var(--primary-gold);
      margin-bottom: 0.75rem;
    }
    .section-subtitle {
      color: #D5D8DC;
      font-size: 1.05rem;
      max-width: 700px;
    }
    .hero-page-banner {
      background: linear-gradient(135deg, rgba(18, 18, 18, 0.7) 0%, rgba(28, 28, 30, 0.85) 100%), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
      min-height: 55vh;
      display: flex;
      align-items: center;
      position: relative;
      border-bottom: 1px solid var(--border-bronze);
    }
    .hero-page-title {
      font-family: var(--font-display);
      font-size: 2.8rem;
      font-weight: 700;
      color: var(--primary-gold);
      line-height: 1.3;
    }
    .hero-page-sub {
      font-size: 1.15rem;
      color: #D5D8DC;
      max-width: 650px;
      margin-top: 1.2rem;
    }
    .hero-badge-custom {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      background: rgba(255, 191, 0, 0.15);
      border: 1px solid var(--border-bronze);
      border-radius: 50px;
      padding: 0.5rem 1.4rem;
      font-size: 0.9rem;
      color: var(--accent-amber);
      font-weight: 600;
      margin-bottom: 1rem;
    }
    .card-strategy {
      background: var(--bg-charcoal);
      border: 1px solid var(--border-bronze);
      border-radius: var(--radius-md);
      padding: 2rem;
      transition: all 0.3s;
      height: 100%;
      position: relative;
    }
    .card-strategy:hover {
      border-color: var(--accent-amber);
      box-shadow: var(--shadow-gold);
      transform: translateY(-4px);
    }
    .card-strategy .strategy-icon {
      width: 56px;
      height: 56px;
      background: rgba(197, 160, 89, 0.12);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--accent-amber);
      font-size: 1.6rem;
      margin-bottom: 1.5rem;
    }
    .step-item {
      display: flex;
      gap: 1.5rem;
      margin-bottom: 2rem;
    }
    .step-number {
      flex-shrink: 0;
      width: 50px;
      height: 50px;
      background: linear-gradient(135deg, var(--primary-gold), var(--accent-amber));
      color: #121212;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1.3rem;
      font-family: var(--font-display);
    }
    .tip-card {
      background: var(--bg-charcoal);
      border-left: 4px solid var(--accent-amber);
      border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
      padding: 1.5rem;
      margin-bottom: 1.5rem;
    }
    .faq-item {
      background: var(--bg-charcoal);
      border: 1px solid var(--border-bronze);
      border-radius: var(--radius-md);
      margin-bottom: 1rem;
      overflow: hidden;
    }
    .faq-item .faq-question {
      padding: 1.2rem 1.5rem;
      font-weight: 600;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      color: var(--text-warm-white);
      transition: all 0.3s;
    }
    .faq-item .faq-question:hover {
      color: var(--accent-amber);
    }
    .faq-item .faq-answer {
      padding: 0 1.5rem 1.2rem;
      color: #D5D8DC;
      display: none;
    }
    .faq-item.open .faq-answer {
      display: block;
    }
    .faq-item.open .faq-question {
      color: var(--accent-amber);
    }
    .cta-banner {
      background: linear-gradient(135deg, rgba(18, 18, 18, 0.9) 0%, rgba(28, 28, 30, 0.9) 100%), url('/assets/images/backpic/back-3.jpg') center/cover no-repeat;
      border: 1px solid var(--border-bronze);
      border-radius: var(--radius-lg);
      padding: 3rem 2rem;
      text-align: center;
    }
    .fab-custom {
      position: fixed;
      left: 1.5rem;
      bottom: 6rem;
      z-index: 1050;
      width: 56px;
      height: 56px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary-gold), var(--accent-amber));
      display: flex;
      align-items: center;
      justify-content: center;
      color: #121212;
      font-size: 1.5rem;
      box-shadow: 0 4px 20px rgba(255, 191, 0, 0.35);
      transition: all 0.4s;
      opacity: 0.7;
      animation: floatFab 3s ease-in-out infinite;
    }
    .fab-custom:hover {
      opacity: 1;
      transform: scale(1.1) rotate(360deg);
    }
    .fab-custom:active {
      transform: scale(0.95);
    }
    @keyframes floatFab {
      0%, 100% { transform: translateY(0); }
      50% { transform: translateY(-6px); }
    }
    @media (max-width: 992px) {
      .hero-page-banner { min-height: 40vh; }
      .hero-page-title { font-size: 2.2rem; }
    }
    @media (max-width: 768px) {
      .hero-page-banner { min-height: 35vh; text-align: left; }
      .hero-page-title { font-size: 1.9rem; }
      .section-title { font-size: 1.8rem; }
      .step-item { flex-direction: column; gap: 0.8rem; }
      .fab-custom { width: 48px; height: 48px; bottom: 5rem; left: 1rem; font-size: 1.2rem; }
    }

/* roulang page: category4 */
:root {
            --primary-gold: #C5A059;
            --accent-amber: #FFBF00;
            --bg-obsidian: #121212;
            --bg-charcoal: #1C1C1E;
            --text-warm-white: #F5F5F7;
            --text-muted-gold: #D4AC0D;
            --border-bronze: rgba(197, 160, 89, 0.3);
            --shadow-gold: 0 4px 20px rgba(255, 191, 0, 0.15);
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.4);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --spacing-section: 4rem;
            --font-display: 'Georgia', 'Times New Roman', serif;
        }
        body {
            margin: 0;
            font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            background-color: var(--bg-obsidian);
            color: var(--text-warm-white);
            line-height: 1.65;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--accent-amber);
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: var(--primary-gold);
        }
        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .section-spacing {
            padding: var(--spacing-section) 0;
        }
        .bg-charcoal-section {
            background-color: var(--bg-charcoal);
        }
        .text-muted-gold {
            color: var(--text-muted-gold) !important;
        }
        .text-warm-white {
            color: var(--text-warm-white) !important;
        }
        .btn-gold {
            background: linear-gradient(135deg, var(--primary-gold), var(--accent-amber));
            color: #121212;
            border: none;
            border-radius: 50px;
            padding: 0.7rem 2rem;
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.5px;
            transition: all 0.3s ease;
            box-shadow: var(--shadow-gold);
            text-transform: uppercase;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }
        .btn-gold:hover {
            background: linear-gradient(135deg, var(--accent-amber), var(--primary-gold));
            box-shadow: 0 6px 24px rgba(255, 191, 0, 0.35);
            transform: translateY(-2px);
            color: #121212;
        }
        .btn-outline-gold {
            background: transparent;
            border: 2px solid var(--primary-gold);
            color: var(--primary-gold);
            border-radius: 50px;
            padding: 0.6rem 1.8rem;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }
        .btn-outline-gold:hover {
            background: var(--primary-gold);
            color: #121212;
            border-color: var(--primary-gold);
        }
        .navbar-custom {
            background-color: rgba(18, 18, 18, 0.92);
            backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-bronze);
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 1050;
        }
        .navbar-custom .navbar-brand {
            font-family: var(--font-display);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary-gold);
            letter-spacing: 0.5px;
        }
        .navbar-custom .nav-link {
            color: var(--text-warm-white);
            font-weight: 500;
            margin: 0 0.5rem;
            padding: 0.5rem 1rem;
            border-radius: var(--radius-sm);
            transition: all 0.25s;
            font-size: 0.95rem;
        }
        .navbar-custom .nav-link:hover,
        .navbar-custom .nav-link.active {
            color: var(--accent-amber);
            background: rgba(255, 191, 0, 0.08);
        }
        .navbar-custom .btn-login-text {
            color: var(--text-warm-white);
            font-weight: 500;
            margin-right: 0.8rem;
            background: none;
            border: none;
            font-size: 0.9rem;
        }
        .navbar-custom .btn-signup-nav {
            background: var(--accent-amber);
            color: #121212;
            border: none;
            border-radius: 50px;
            padding: 0.5rem 1.6rem;
            font-weight: 700;
            font-size: 0.9rem;
        }
        .card-gold {
            background: var(--bg-charcoal);
            border: 1px solid var(--border-bronze);
            border-radius: var(--radius-md);
            padding: 1.8rem;
            transition: all 0.3s;
            height: 100%;
        }
        .card-gold:hover {
            border-color: var(--accent-amber);
            box-shadow: var(--shadow-gold);
            transform: translateY(-4px);
        }
        .card-gold .icon-wrap {
            width: 48px;
            height: 48px;
            background: rgba(197, 160, 89, 0.15);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-amber);
            font-size: 1.5rem;
            margin-bottom: 1.2rem;
        }
        .section-title {
            font-family: var(--font-display);
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--primary-gold);
            margin-bottom: 0.75rem;
        }
        .section-subtitle {
            color: #D5D8DC;
            font-size: 1.05rem;
            max-width: 700px;
        }
        .footer-custom {
            background: #0A0A0A;
            border-top: 1px solid var(--border-bronze);
            padding: 2.5rem 0;
            font-size: 0.9rem;
            color: #A6ACAF;
        }
        .footer-custom a {
            color: #A6ACAF;
            text-decoration: none;
            transition: color 0.2s;
        }
        .footer-custom a:hover {
            color: var(--accent-amber);
        }
        .footer-custom h5, .footer-custom h6 {
            color: var(--text-muted-gold);
        }
        .badge-trust {
            background: rgba(255,191,0,0.1);
            border: 1px solid var(--border-bronze);
            color: var(--accent-amber);
            padding: 0.4rem 1rem;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.85rem;
        }
        .step-card {
            background: var(--bg-charcoal);
            border: 1px solid var(--border-bronze);
            border-radius: var(--radius-md);
            padding: 2rem 1.5rem;
            position: relative;
            transition: all 0.3s;
        }
        .step-card:hover {
            border-color: var(--accent-amber);
            box-shadow: var(--shadow-gold);
        }
        .step-number {
            position: absolute;
            top: -18px;
            left: 24px;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary-gold), var(--accent-amber));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
            color: #121212;
        }
        .app-store-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            background: #000;
            border: 1px solid rgba(255,255,255,0.25);
            border-radius: var(--radius-sm);
            padding: 0.6rem 1.4rem;
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all 0.3s;
        }
        .app-store-badge:hover {
            border-color: var(--accent-amber);
            color: var(--accent-amber);
            background: #1a1a1a;
        }
        .faq-item {
            background: var(--bg-charcoal);
            border: 1px solid var(--border-bronze);
            border-radius: var(--radius-md);
            margin-bottom: 1rem;
            overflow: hidden;
        }
        .faq-question {
            padding: 1.2rem 1.5rem;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: background 0.2s;
        }
        .faq-question:hover {
            background: rgba(255,191,0,0.05);
        }
        .faq-answer {
            padding: 0 1.5rem 1.2rem;
            color: #D5D8DC;
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        .faq-item.open .faq-question {
            color: var(--accent-amber);
        }
        .review-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: rgba(255,191,0,0.12);
            padding: 0.3rem 0.9rem;
            border-radius: 50px;
            font-size: 0.85rem;
            color: var(--accent-amber);
            font-weight: 600;
        }
        @media (max-width: 768px) {
            .section-title {
                font-size: 1.7rem;
            }
            .hero-title {
                font-size: 2rem;
            }
            .card-gold {
                padding: 1.4rem;
            }
            .navbar-custom .nav-link {
                margin: 0.2rem 0;
            }
        }
        @media (max-width: 520px) {
            .section-title {
                font-size: 1.5rem;
            }
            .btn-gold {
                padding: 0.6rem 1.5rem;
                font-size: 0.85rem;
            }
        }