/* roulang page: index */
:root {
  --bg-primary: #0B1A30;
  --bg-secondary: #0F0C20;
  --bg-card: rgba(15, 12, 32, 0.85);
  --bg-overlay: rgba(11, 26, 48, 0.92);
  --accent-cyan: #00F0FF;
  --accent-lime: #CCFF00;
  --accent-pink: #FF007F;
  --text-primary: #FFFFFF;
  --text-secondary: #A6ACAF;
  --text-muted: #6B7280;
  --border-neon: rgba(0, 240, 255, 0.25);
  --border-glow: rgba(204, 255, 0, 0.30);
  --shadow-neon: 0 0 18px rgba(0, 240, 255, 0.35);
  --shadow-lime: 0 0 22px rgba(204, 255, 0, 0.40);
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --font-sans: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-display: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  background-image: 
    radial-gradient(ellipse at 30% 15%, rgba(0, 240, 255, 0.07) 0%, transparent 55%),
    radial-gradient(ellipse at 75% 85%, rgba(204, 255, 0, 0.05) 0%, transparent 55%),
    radial-gradient(ellipse at 50% 50%, rgba(15, 12, 32, 0.94) 0%, rgba(11, 26, 48, 1) 100%);
  background-attachment: fixed;
}

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

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

button {
  cursor: pointer;
  font-family: inherit;
  border: none;
  background: none;
  transition: all var(--transition-fast);
}

ul, ol {
  list-style: none;
}

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

/* Header & Navigation */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(11, 26, 48, 0.85);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border-neon);
  transition: background var(--transition-smooth), box-shadow var(--transition-smooth);
  box-shadow: 0 2px 24px rgba(0, 0, 0, 0.4);
}

.site-header.scrolled {
  background: rgba(11, 26, 48, 0.96);
  box-shadow: 0 4px 32px rgba(0, 240, 255, 0.12);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 28px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--text-primary);
  letter-spacing: -0.3px;
  white-space: nowrap;
  transition: opacity var(--transition-fast);
}

.logo:hover {
  opacity: 0.85;
}

.logo-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: #0B1A30;
  box-shadow: var(--shadow-neon);
  flex-shrink: 0;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.logo-text .brand-name {
  font-size: 0.95rem;
  font-weight: 800;
  color: #FFFFFF;
}

.logo-text .brand-sub {
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--accent-cyan);
  letter-spacing: 0.6px;
}

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

.main-nav a {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  white-space: nowrap;
  position: relative;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--accent-cyan);
  background: rgba(0, 240, 255, 0.08);
}

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

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

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 20px;
  border-radius: 22px;
  font-size: 0.85rem;
  font-weight: 600;
  border: 1.5px solid var(--accent-cyan);
  color: var(--accent-cyan);
  background: transparent;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-outline:hover {
  background: rgba(0, 240, 255, 0.1);
  box-shadow: var(--shadow-neon);
  border-color: #FFFFFF;
  color: #FFFFFF;
}

.btn-solid {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 22px;
  border-radius: 22px;
  font-size: 0.85rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent-lime), #88DD00);
  color: #0F0C20;
  border: none;
  transition: all var(--transition-fast);
  box-shadow: 0 4px 16px rgba(204, 255, 0, 0.30);
  white-space: nowrap;
}

.btn-solid:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(204, 255, 0, 0.50);
}

.mobile-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-neon);
  color: var(--accent-cyan);
  font-size: 1.3rem;
  background: transparent;
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 68px;
  left: 0;
  width: 100%;
  background: rgba(11, 26, 48, 0.97);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-neon);
  padding: 16px 20px;
  flex-direction: column;
  gap: 8px;
  z-index: 999;
}

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

.mobile-menu a {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.mobile-menu a:hover,
.mobile-menu a.active {
  background: rgba(0, 240, 255, 0.08);
  color: var(--accent-cyan);
}

/* Hero Section */
.hero-section {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 68px;
}

.hero-video-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.hero-video-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 26, 48, 0.82) 0%, rgba(11, 26, 48, 0.88) 100%);
  z-index: 1;
}

.hero-video-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.55) saturate(1.3);
  transform: scale(1.02);
}

.hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
  padding: 120px 0 100px;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 240, 255, 0.1);
  border: 1px solid var(--border-neon);
  border-radius: 40px;
  padding: 8px 22px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-cyan);
  margin-bottom: 28px;
  letter-spacing: 0.4px;
}

.hero-badge i {
  font-size: 0.8rem;
  animation: pulse-dot 1.8s infinite;
}

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

.hero-title {
  font-family: var(--font-display);
  font-size: 3.4rem;
  font-weight: 900;
  line-height: 1.15;
  color: #FFFFFF;
  max-width: 900px;
  margin: 0 auto 22px;
  letter-spacing: -0.5px;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
}

.hero-title span {
  color: var(--accent-lime);
  text-shadow: 0 0 28px rgba(204, 255, 0, 0.55);
}

.hero-desc {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 680px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.btn-lg {
  padding: 14px 34px;
  border-radius: 28px;
  font-size: 1rem;
  font-weight: 700;
}

.btn-lg-outline {
  padding: 14px 34px;
  border-radius: 28px;
  font-size: 1rem;
  font-weight: 700;
  border: 2px solid var(--accent-cyan);
  color: var(--accent-cyan);
  background: transparent;
  transition: all var(--transition-fast);
}

.btn-lg-outline:hover {
  background: rgba(0, 240, 255, 0.12);
  box-shadow: var(--shadow-neon);
}

.hero-play-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  border: 2px solid var(--accent-cyan);
  color: var(--accent-cyan);
  font-size: 1.5rem;
  margin: 0 auto 20px;
  transition: all var(--transition-smooth);
  cursor: pointer;
  box-shadow: 0 0 28px rgba(0, 240, 255, 0.25);
}

.hero-play-btn:hover {
  background: var(--accent-cyan);
  color: #0B1A30;
  box-shadow: 0 0 44px rgba(0, 240, 255, 0.55);
  transform: scale(1.08);
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
  margin-top: 16px;
}

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

.hero-stat .stat-num {
  font-size: 2rem;
  font-weight: 900;
  color: var(--accent-lime);
  line-height: 1;
}

.hero-stat .stat-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* Section Base */
.section {
  padding: 80px 0;
}

.section-dark {
  background: rgba(15, 12, 32, 0.45);
}

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

.section-header h2 {
  font-size: 2.2rem;
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: 12px;
  letter-spacing: -0.3px;
}

.section-header p {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 640px;
  line-height: 1.6;
}

/* Content Calendar */
.content-calendar-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.calendar-card {
  background: var(--bg-card);
  border: 1px solid var(--border-neon);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.calendar-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--accent-cyan), var(--accent-lime));
  border-radius: 4px 0 0 4px;
}

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

.calendar-card .cal-date {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 10px;
}

.calendar-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 8px;
}

.calendar-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Hot Topics Grid */
.hot-topics-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.topic-card {
  background: var(--bg-card);
  border: 1px solid var(--border-neon);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-smooth);
  display: flex;
  flex-direction: column;
}

.topic-card:hover {
  border-color: var(--accent-cyan);
  box-shadow: var(--shadow-neon);
  transform: translateY(-3px);
}

.topic-card-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.topic-card-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.topic-card-body h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 8px;
}

.topic-card-body p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
  flex: 1;
}

.topic-tag {
  display: inline-block;
  background: rgba(0, 240, 255, 0.12);
  color: var(--accent-cyan);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 12px;
  margin-top: 12px;
  align-self: flex-start;
}

/* Data Dashboard */
.data-dashboard {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.data-card {
  background: var(--bg-card);
  border: 1px solid var(--border-neon);
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  text-align: center;
  transition: all var(--transition-smooth);
}

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

.data-card .data-icon {
  font-size: 2rem;
  color: var(--accent-cyan);
  margin-bottom: 12px;
}

.data-card .data-value {
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--accent-lime);
  line-height: 1;
}

.data-card .data-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 6px;
}

/* News Section */
.news-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 32px;
}

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

.news-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: all var(--transition-fast);
}

.news-item:hover {
  padding-left: 8px;
}

.news-item .news-date {
  font-size: 0.78rem;
  color: var(--accent-cyan);
  font-weight: 600;
  white-space: nowrap;
  min-width: 70px;
}

.news-item .news-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: #FFFFFF;
  line-height: 1.4;
  transition: color var(--transition-fast);
}

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

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

.news-sidebar {
  background: var(--bg-card);
  border: 1px solid var(--border-neon);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.news-sidebar h4 {
  font-size: 1.1rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.sidebar-card {
  display: flex;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

.sidebar-card:last-child {
  border-bottom: none;
}

.sidebar-card img {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  flex-shrink: 0;
}

.sidebar-card .s-text {
  font-size: 0.85rem;
  font-weight: 600;
  color: #FFFFFF;
  line-height: 1.3;
}

/* Quick FAQ */
.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-neon);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  font-size: 1rem;
  font-weight: 700;
  color: #FFFFFF;
  background: transparent;
  border: none;
  cursor: pointer;
  text-align: left;
  gap: 12px;
  transition: background var(--transition-fast);
}

.faq-question:hover {
  background: rgba(0, 240, 255, 0.04);
}

.faq-question i {
  transition: transform var(--transition-smooth);
  color: var(--accent-cyan);
  font-size: 0.9rem;
  flex-shrink: 0;
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-smooth), padding var(--transition-smooth);
  padding: 0 24px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.faq-answer.open {
  max-height: 300px;
  padding: 0 24px 20px;
}

/* Trust Badges */
.trust-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 48px;
  padding: 40px 0;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 600;
}

.trust-item i {
  font-size: 1.6rem;
  color: var(--accent-cyan);
}

/* Media Spotlight */
.media-scroll-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 8px;
}

.media-scroll {
  display: flex;
  gap: 20px;
  min-width: max-content;
}

.media-card {
  flex: 0 0 280px;
  background: var(--bg-card);
  border: 1px solid var(--border-neon);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-smooth);
}

.media-card:hover {
  border-color: var(--accent-lime);
  box-shadow: var(--shadow-lime);
  transform: translateY(-3px);
}

.media-card img {
  width: 100%;
  height: 170px;
  object-fit: cover;
}

.media-card-body {
  padding: 16px;
}

.media-card-body h5 {
  font-size: 0.95rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 4px;
}

.media-card-body p {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* Highlight Wall */
.highlight-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.highlight-card {
  background: var(--bg-card);
  border: 1px solid var(--border-neon);
  border-radius: var(--radius-lg);
  padding: 24px;
  text-align: center;
  transition: all var(--transition-smooth);
}

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

.highlight-card .hl-icon {
  font-size: 2.4rem;
  color: var(--accent-lime);
  margin-bottom: 14px;
}

.highlight-card h4 {
  font-size: 1.1rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 8px;
}

.highlight-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* CTA Section */
.cta-section {
  background: var(--bg-card);
  border: 1px solid var(--border-neon);
  border-radius: var(--radius-xl);
  padding: 56px 40px;
  text-align: center;
  box-shadow: 0 0 40px rgba(0, 240, 255, 0.08);
}

.cta-section h2 {
  font-size: 2rem;
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: 12px;
}

.cta-section p {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto 28px;
}

/* Footer */
.site-footer {
  background: rgba(15, 12, 32, 0.75);
  border-top: 1px solid var(--border-neon);
  padding: 56px 0 28px;
  margin-top: 40px;
}

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

.footer-brand .logo {
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.footer-col h5 {
  font-size: 0.95rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 16px;
}

.footer-col a {
  display: block;
  font-size: 0.85rem;
  color: var(--text-secondary);
  padding: 4px 0;
  transition: color var(--transition-fast);
}

.footer-col a:hover {
  color: var(--accent-cyan);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-badges {
  display: flex;
  align-items: center;
  gap: 16px;
}

.footer-badges span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.78rem;
  color: var(--accent-cyan);
}

/* FAB */
.fab-left {
  position: fixed;
  left: 16px;
  bottom: 72px;
  z-index: 50;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: rgba(11, 26, 48, 0.7);
  backdrop-filter: blur(12px);
  border: 2px solid transparent;
  background-clip: padding-box;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: var(--accent-cyan);
  cursor: pointer;
  transition: all var(--transition-smooth);
  box-shadow: 0 0 18px rgba(0, 240, 255, 0.3);
  animation: fab-float 3s ease-in-out infinite;
  position: relative;
}

.fab-left::before {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
  z-index: -1;
  opacity: 0.7;
}

.fab-left:hover {
  transform: scale(1.15);
  box-shadow: 0 0 32px rgba(0, 240, 255, 0.6);
  color: #FFFFFF;
}

.fab-dot {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 10px;
  height: 10px;
  background: var(--accent-lime);
  border-radius: 50%;
  animation: pulse-dot 1.4s infinite;
}

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

/* Responsive */
@media (max-width: 1024px) {
  .hero-title { font-size: 2.6rem; }
  .content-calendar-grid { grid-template-columns: repeat(2, 1fr); }
  .hot-topics-grid { grid-template-columns: 1fr 1fr; }
  .data-dashboard { grid-template-columns: repeat(2, 1fr); }
  .news-layout { grid-template-columns: 1fr; }
  .highlight-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-stats { gap: 24px; }
}

@media (max-width: 768px) {
  .main-nav { display: none; }
  .mobile-toggle { display: flex; }
  .hero-title { font-size: 2rem; }
  .hero-desc { font-size: 0.95rem; }
  .content-calendar-grid { grid-template-columns: 1fr; }
  .hot-topics-grid { grid-template-columns: 1fr; }
  .data-dashboard { grid-template-columns: 1fr 1fr; }
  .faq-grid { grid-template-columns: 1fr; }
  .highlight-grid { grid-template-columns: 1fr; }
  .trust-strip { gap: 24px; }
  .cta-section { padding: 36px 20px; }
  .footer-grid { grid-template-columns: 1fr; }
  .section { padding: 60px 0; }
  .section-header h2 { font-size: 1.7rem; }
  .hero-stats { gap: 16px; }
  .hero-stat .stat-num { font-size: 1.5rem; }
}

@media (max-width: 520px) {
  .hero-title { font-size: 1.6rem; }
  .hero-actions { flex-direction: column; width: 100%; }
  .hero-actions .btn-lg,
  .hero-actions .btn-lg-outline { width: 100%; text-align: center; justify-content: center; }
  .data-dashboard { grid-template-columns: 1fr; }
  .header-actions .btn-outline { padding: 8px 14px; font-size: 0.78rem; }
  .header-actions .btn-solid { padding: 8px 16px; font-size: 0.78rem; }
}

/* roulang page: article */
:root {
  --bg-primary: #0B1A30;
  --bg-secondary: #0F0C20;
  --bg-card: rgba(15, 12, 32, 0.85);
  --bg-overlay: rgba(11, 26, 48, 0.92);
  --accent-cyan: #00F0FF;
  --accent-lime: #CCFF00;
  --accent-pink: #FF007F;
  --text-primary: #FFFFFF;
  --text-secondary: #A6ACAF;
  --text-muted: #6B7280;
  --border-neon: rgba(0, 240, 255, 0.25);
  --border-glow: rgba(204, 255, 0, 0.30);
  --shadow-neon: 0 0 18px rgba(0, 240, 255, 0.35);
  --shadow-lime: 0 0 22px rgba(204, 255, 0, 0.40);
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --font-sans: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-display: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  background-image: 
    radial-gradient(ellipse at 30% 15%, rgba(0, 240, 255, 0.07) 0%, transparent 55%),
    radial-gradient(ellipse at 75% 85%, rgba(204, 255, 0, 0.05) 0%, transparent 55%),
    radial-gradient(ellipse at 50% 50%, rgba(15, 12, 32, 0.94) 0%, rgba(11, 26, 48, 1) 100%);
  background-attachment: fixed;
}

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

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

button {
  cursor: pointer;
  font-family: inherit;
  border: none;
  background: none;
  transition: all var(--transition-fast);
}

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

/* Header & Navigation */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(11, 26, 48, 0.85);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border-neon);
  transition: background var(--transition-smooth), box-shadow var(--transition-smooth);
  box-shadow: 0 2px 24px rgba(0, 0, 0, 0.4);
}

.site-header.scrolled {
  background: rgba(11, 26, 48, 0.96);
  box-shadow: 0 4px 32px rgba(0, 240, 255, 0.12);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 28px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--text-primary);
  letter-spacing: -0.3px;
  white-space: nowrap;
  transition: opacity var(--transition-fast);
}

.logo:hover {
  opacity: 0.85;
}

.logo-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: #0B1A30;
  box-shadow: var(--shadow-neon);
  flex-shrink: 0;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.logo-text .brand-name {
  font-size: 0.95rem;
  font-weight: 800;
  color: #FFFFFF;
}

.logo-text .brand-sub {
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--accent-cyan);
  letter-spacing: 0.6px;
}

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

.main-nav a {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  white-space: nowrap;
  position: relative;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--accent-cyan);
  background: rgba(0, 240, 255, 0.08);
}

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

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

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 20px;
  border-radius: 22px;
  font-size: 0.85rem;
  font-weight: 600;
  border: 1.5px solid var(--accent-cyan);
  color: var(--accent-cyan);
  background: transparent;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-outline:hover {
  background: rgba(0, 240, 255, 0.1);
  box-shadow: var(--shadow-neon);
  border-color: #FFFFFF;
  color: #FFFFFF;
}

.btn-solid {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 22px;
  border-radius: 22px;
  font-size: 0.85rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent-lime), #88DD00);
  color: #0F0C20;
  border: none;
  transition: all var(--transition-fast);
  box-shadow: 0 4px 16px rgba(204, 255, 0, 0.30);
  white-space: nowrap;
}

.btn-solid:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(204, 255, 0, 0.50);
}

.mobile-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-neon);
  color: var(--accent-cyan);
  font-size: 1.3rem;
  background: transparent;
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 68px;
  left: 0;
  width: 100%;
  background: rgba(11, 26, 48, 0.97);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-neon);
  padding: 16px 20px;
  flex-direction: column;
  gap: 8px;
  z-index: 999;
}

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

.mobile-menu a {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.mobile-menu a:hover,
.mobile-menu a.active {
  background: rgba(0, 240, 255, 0.08);
  color: var(--accent-cyan);
}

/* Page Header / Breadcrumb */
.page-header {
  padding-top: 100px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--border-neon);
  margin-bottom: 48px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.breadcrumb a {
  color: var(--accent-cyan);
  transition: color var(--transition-fast);
}

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

.breadcrumb .separator {
  color: var(--text-muted);
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: 16px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

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

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

.category-tag {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  background: rgba(0, 240, 255, 0.1);
  border: 1px solid var(--border-neon);
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Article Body */
.article-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  padding-bottom: 60px;
}

.article-content-wrapper {
  max-width: 800px;
  margin: 0 auto;
  width: 100%;
}

.article-featured-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 40px;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border-neon);
}

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

.article-body {
  color: var(--text-secondary);
  line-height: 1.75;
  font-size: 1.05rem;
}

.article-body h2 {
  font-size: 1.6rem;
  color: var(--text-primary);
  margin-top: 36px;
  margin-bottom: 16px;
  font-weight: 700;
  letter-spacing: -0.3px;
}

.article-body h3 {
  font-size: 1.25rem;
  color: var(--accent-cyan);
  margin-top: 28px;
  margin-bottom: 12px;
  font-weight: 600;
}

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

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

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

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

.article-body a {
  color: var(--accent-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.article-body a:hover {
  color: var(--accent-lime);
}

.article-body blockquote {
  border-left: 3px solid var(--accent-lime);
  padding: 16px 20px;
  margin: 24px 0;
  background: rgba(204, 255, 0, 0.05);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-secondary);
  font-style: italic;
}

.article-body img {
  border-radius: var(--radius-md);
  margin: 24px 0;
}

/* Article Navigation */
.article-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: 40px;
  padding-top: 28px;
  border-top: 1px solid var(--border-neon);
}

.article-nav a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-neon);
  border-radius: var(--radius-md);
  color: var(--accent-cyan);
  font-weight: 600;
  transition: all var(--transition-fast);
}

.article-nav a:hover {
  background: rgba(0, 240, 255, 0.1);
  border-color: var(--accent-cyan);
  box-shadow: var(--shadow-neon);
}

.btn-back-home {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  background: linear-gradient(135deg, var(--accent-lime), #88DD00);
  border-radius: var(--radius-md);
  color: #0F0C20;
  font-weight: 700;
  font-size: 0.95rem;
  transition: all var(--transition-fast);
  box-shadow: 0 4px 16px rgba(204, 255, 0, 0.30);
}

.btn-back-home:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(204, 255, 0, 0.50);
}

/* Related Articles */
.related-articles {
  padding: 60px 0;
}

.related-articles h3 {
  font-size: 1.4rem;
  color: var(--text-primary);
  margin-bottom: 28px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.related-articles h3 i {
  color: var(--accent-lime);
}

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

.related-card {
  background: var(--bg-card);
  border: 1px solid var(--border-neon);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: all var(--transition-fast);
  cursor: pointer;
}

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

.related-card h4 {
  font-size: 1rem;
  color: var(--text-primary);
  margin-bottom: 8px;
  font-weight: 600;
}

.related-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* FAB */
.fab {
  position: fixed;
  left: 20px;
  bottom: 80px;
  width: 52px;
  height: 52px;
  border-radius: 26px;
  background: rgba(11, 26, 48, 0.75);
  backdrop-filter: blur(10px);
  border: 2px solid transparent;
  background-clip: padding-box;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: var(--accent-cyan);
  z-index: 900;
  transition: all var(--transition-smooth);
  box-shadow: 0 0 18px rgba(0, 240, 255, 0.4);
  cursor: pointer;
  animation: fabFloat 3.5s ease-in-out infinite;
  border-image: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime)) 1;
}

.fab:hover {
  transform: scale(1.15);
  box-shadow: 0 0 28px rgba(0, 240, 255, 0.7);
  color: var(--accent-lime);
}

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

/* Footer */
.site-footer {
  background: rgba(15, 12, 32, 0.9);
  border-top: 1px solid var(--border-neon);
  padding: 48px 0 28px;
  margin-top: 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr 1fr;
  gap: 36px;
  margin-bottom: 36px;
}

.footer-brand .logo {
  margin-bottom: 14px;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.85rem;
  line-height: 1.6;
}

.footer-col h5 {
  color: var(--accent-cyan);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
  font-weight: 700;
}

.footer-col a {
  display: block;
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-bottom: 10px;
  transition: color var(--transition-fast);
}

.footer-col a:hover {
  color: var(--accent-lime);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  padding-top: 20px;
  border-top: 1px solid rgba(0, 240, 255, 0.12);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-badges {
  display: flex;
  gap: 16px;
  align-items: center;
}

.footer-badges span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--accent-cyan);
  font-weight: 600;
}

/* Responsive */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .main-nav {
    display: none;
  }
  .mobile-toggle {
    display: flex;
  }
  .header-actions .btn-outline,
  .header-actions .btn-solid {
    padding: 7px 14px;
    font-size: 0.78rem;
  }
  .article-layout {
    gap: 24px;
  }
  .article-body {
    font-size: 1rem;
  }
  .article-body h2 {
    font-size: 1.35rem;
  }
  .article-nav {
    flex-direction: column;
    align-items: flex-start;
  }
  .related-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  .fab {
    left: 12px;
    bottom: 60px;
    width: 44px;
    height: 44px;
    font-size: 1.1rem;
  }
}

@media (max-width: 520px) {
  .header-inner {
    height: 60px;
    gap: 12px;
  }
  .logo-text .brand-name {
    font-size: 0.8rem;
  }
  .logo-text .brand-sub {
    font-size: 0.6rem;
  }
  .logo-icon {
    width: 30px;
    height: 30px;
    font-size: 1rem;
  }
  .page-header {
    padding-top: 84px;
  }
  .article-featured-image {
    border-radius: var(--radius-md);
  }
  .btn-back-home {
    width: 100%;
    justify-content: center;
  }
}

/* roulang page: category1 */
/* === Design System (Aligned with Index) === */
        :root {
            --bg-primary: #0B1A30;
            --bg-secondary: #0F0C20;
            --bg-card: rgba(15, 12, 32, 0.85);
            --bg-overlay: rgba(11, 26, 48, 0.92);
            --accent-cyan: #00F0FF;
            --accent-lime: #CCFF00;
            --accent-pink: #FF007F;
            --text-primary: #FFFFFF;
            --text-secondary: #A6ACAF;
            --text-muted: #6B7280;
            --border-neon: rgba(0, 240, 255, 0.25);
            --border-glow: rgba(204, 255, 0, 0.30);
            --shadow-neon: 0 0 18px rgba(0, 240, 255, 0.35);
            --shadow-lime: 0 0 22px rgba(204, 255, 0, 0.40);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --font-sans: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            --font-display: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            font-family: var(--font-sans);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            min-height: 100vh;
            overflow-x: hidden;
            background-image: 
                radial-gradient(ellipse at 30% 15%, rgba(0, 240, 255, 0.07) 0%, transparent 55%),
                radial-gradient(ellipse at 75% 85%, rgba(204, 255, 0, 0.05) 0%, transparent 55%),
                radial-gradient(ellipse at 50% 50%, rgba(15, 12, 32, 0.94) 0%, rgba(11, 26, 48, 1) 100%);
            background-attachment: fixed;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
            transition: all var(--transition-fast);
        }

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

        /* Header */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(11, 26, 48, 0.85);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-neon);
            transition: background var(--transition-smooth), box-shadow var(--transition-smooth);
            box-shadow: 0 2px 24px rgba(0, 0, 0, 0.4);
        }
        .site-header.scrolled {
            background: rgba(11, 26, 48, 0.96);
            box-shadow: 0 4px 32px rgba(0, 240, 255, 0.12);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 28px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-display);
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--text-primary);
            letter-spacing: -0.3px;
            white-space: nowrap;
            transition: opacity var(--transition-fast);
        }
        .logo:hover {
            opacity: 0.85;
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: #0B1A30;
            box-shadow: var(--shadow-neon);
            flex-shrink: 0;
        }
        .logo-text {
            display: flex;
            flex-direction: column;
            line-height: 1.15;
        }
        .logo-text .brand-name {
            font-size: 0.95rem;
            font-weight: 800;
            color: #FFFFFF;
        }
        .logo-text .brand-sub {
            font-size: 0.65rem;
            font-weight: 500;
            color: var(--accent-cyan);
            letter-spacing: 0.6px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .main-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        .main-nav a:hover,
        .main-nav a.active {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.08);
        }
        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 18px;
            height: 2px;
            background: var(--accent-lime);
            border-radius: 2px;
            box-shadow: var(--shadow-lime);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 9px 20px;
            border-radius: 22px;
            font-size: 0.85rem;
            font-weight: 600;
            border: 1.5px solid var(--accent-cyan);
            color: var(--accent-cyan);
            background: transparent;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .btn-outline:hover {
            background: rgba(0, 240, 255, 0.1);
            box-shadow: var(--shadow-neon);
            border-color: #FFFFFF;
            color: #FFFFFF;
        }
        .btn-solid {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 22px;
            border-radius: 22px;
            font-size: 0.85rem;
            font-weight: 700;
            background: linear-gradient(135deg, var(--accent-lime), #88DD00);
            color: #0F0C20;
            border: none;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 16px rgba(204, 255, 0, 0.30);
            white-space: nowrap;
        }
        .btn-solid:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(204, 255, 0, 0.50);
        }
        .mobile-toggle {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-neon);
            color: var(--accent-cyan);
            font-size: 1.3rem;
            background: transparent;
        }
        .mobile-menu {
            display: none;
            position: fixed;
            top: 68px;
            left: 0;
            width: 100%;
            background: rgba(11, 26, 48, 0.97);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-neon);
            padding: 16px 20px;
            flex-direction: column;
            gap: 8px;
            z-index: 999;
        }
        .mobile-menu.open {
            display: flex;
        }
        .mobile-menu a {
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
        }
        .mobile-menu a:hover,
        .mobile-menu a.active {
            background: rgba(0, 240, 255, 0.08);
            color: var(--accent-cyan);
        }

        /* Hero */
        .category-hero {
            position: relative;
            padding: 140px 0 80px;
            background: url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
            min-height: 480px;
            display: flex;
            align-items: center;
            z-index: 1;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11,26,48,0.85) 0%, rgba(15,12,32,0.92) 100%);
            z-index: 0;
        }
        .category-hero .hero-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255,0,127,0.2);
            border: 1px solid var(--accent-pink);
            color: #FFB6D9;
            padding: 6px 18px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.8px;
            margin-bottom: 20px;
        }
        .category-hero h1 {
            font-size: 2.8rem;
            font-weight: 900;
            line-height: 1.2;
            color: #FFFFFF;
            margin-bottom: 16px;
            letter-spacing: -0.8px;
        }
        .category-hero h1 span {
            color: var(--accent-lime);
            display: inline;
        }
        .category-hero .hero-desc {
            font-size: 1.1rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 650px;
        }
        .hero-stats-row {
            display: flex;
            gap: 30px;
            flex-wrap: wrap;
            margin-bottom: 32px;
        }
        .hero-stat {
            text-align: left;
        }
        .hero-stat .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-cyan);
            line-height: 1;
        }
        .hero-stat .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* Section Titles */
        .section-header {
            margin-bottom: 48px;
        }
        .section-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--accent-lime);
            margin-bottom: 12px;
        }
        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: -0.5px;
            line-height: 1.25;
        }
        .section-header p {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 700px;
        }

        section {
            padding: 80px 0;
            position: relative;
        }

        /* Promo Cards */
        .promo-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
            gap: 24px;
            align-items: stretch;
        }
        .promo-card {
            background: var(--bg-card);
            backdrop-filter: blur(10px);
            border: 1px solid var(--border-neon);
            border-radius: var(--radius-lg);
            padding: 28px;
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            box-shadow: var(--shadow-card);
        }
        .promo-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-cyan), var(--accent-lime));
            opacity: 0;
            transition: opacity var(--transition-smooth);
        }
        .promo-card:hover::before {
            opacity: 1;
        }
        .promo-card:hover {
            border-color: var(--accent-cyan);
            transform: translateY(-6px);
            box-shadow: 0 16px 40px rgba(0, 240, 255, 0.2);
        }
        .promo-card .card-icon-wrap {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-md);
            background: rgba(0, 240, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--accent-cyan);
            margin-bottom: 20px;
            flex-shrink: 0;
        }
        .promo-card h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
        }
        .promo-card .card-excerpt {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.6;
            flex-grow: 1;
            margin-bottom: 18px;
        }
        .promo-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 18px;
        }
        .promo-tag {
            font-size: 0.7rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 16px;
            background: rgba(204, 255, 0, 0.12);
            color: var(--accent-lime);
            border: 1px solid rgba(204, 255, 0, 0.25);
            letter-spacing: 0.4px;
        }
        .promo-tag.hot {
            background: rgba(255, 0, 127, 0.15);
            color: var(--accent-pink);
            border-color: rgba(255, 0, 127, 0.35);
        }
        .btn-card {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 100%;
            padding: 12px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.9rem;
            background: linear-gradient(135deg, var(--accent-lime), #88DD00);
            color: #0F0C20;
            transition: all var(--transition-fast);
            margin-top: auto;
        }
        .btn-card:hover {
            box-shadow: var(--shadow-lime);
        }

        /* Steps / How It Works */
        .steps-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 28px;
            counter-reset: step-counter;
            list-style: none;
        }
        .step-item {
            position: relative;
            padding: 32px 24px;
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            border-radius: var(--radius-lg);
            text-align: left;
            transition: all var(--transition-smooth);
        }
        .step-item:hover {
            border-color: var(--accent-cyan);
            box-shadow: var(--shadow-neon);
        }
        .step-item::before {
            counter-increment: step-counter;
            content: counter(step-counter);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            color: #0B1A30;
            font-weight: 800;
            font-size: 1.2rem;
            margin-bottom: 16px;
        }
        .step-item h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .step-item p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* FAQ */
        .faq-section {
            background: rgba(15, 12, 32, 0.6);
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            border-radius: var(--radius-md);
            padding: 22px 28px;
            margin-bottom: 14px;
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--accent-cyan);
        }
        .faq-item h5 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
        }
        .faq-item h5 i {
            color: var(--accent-cyan);
            transition: transform var(--transition-fast);
        }
        .faq-item.open h5 i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, margin-top 0.35s ease;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            margin-top: 14px;
        }

        /* CTA Banner */
        .cta-banner {
            text-align: left;
            padding: 60px 0;
        }
        .cta-inner {
            background: linear-gradient(135deg, rgba(0, 240, 255, 0.08), rgba(204, 255, 0, 0.05));
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 30px;
        }
        .cta-text h2 {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .cta-text p {
            color: var(--text-secondary);
            font-size: 1rem;
        }
        .btn-cta-large {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 16px 36px;
            border-radius: 30px;
            background: linear-gradient(135deg, var(--accent-lime), #88DD00);
            color: #0F0C20;
            font-weight: 800;
            font-size: 1rem;
            box-shadow: var(--shadow-lime);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .btn-cta-large:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 32px rgba(204, 255, 0, 0.55);
        }

        /* Footer (shared) */
        .site-footer {
            background: rgba(11, 26, 48, 0.95);
            border-top: 1px solid var(--border-neon);
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            margin-bottom: 16px;
            pointer-events: none;
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .footer-col h5 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 10px;
            transition: color var(--transition-fast);
        }
        .footer-col a:hover {
            color: var(--accent-cyan);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .footer-badges {
            display: flex;
            gap: 18px;
            flex-wrap: wrap;
        }
        .footer-badges span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            color: var(--accent-cyan);
        }

        /* FAB */
        .fab-cyber {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 52px;
            height: 52px;
            border-radius: 30px;
            background: rgba(15, 12, 32, 0.8);
            backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-clip: padding-box;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--accent-cyan);
            box-shadow: 0 0 18px rgba(0, 240, 255, 0.45);
            transition: all var(--transition-smooth);
            animation: neonPulse 2.2s infinite;
        }
        .fab-cyber::before {
            content: '';
            position: absolute;
            inset: -2px;
            border-radius: 32px;
            padding: 2px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            -webkit-mask-composite: xor;
            mask-composite: exclude;
            z-index: -1;
        }
        .fab-cyber:hover {
            transform: scale(1.12);
            box-shadow: 0 0 28px rgba(0, 240, 255, 0.7);
        }
        @keyframes neonPulse {
            0%, 100% { opacity: 0.8; }
            50% { opacity: 1; }
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .category-hero h1 {
                font-size: 2.2rem;
            }
            .promo-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 768px) {
            .main-nav {
                display: none;
            }
            .header-actions .btn-outline,
            .header-actions .btn-solid {
                display: flex;
            }
            .mobile-toggle {
                display: flex;
            }
            .header-inner {
                gap: 16px;
            }
            section {
                padding: 60px 0;
            }
            .category-hero {
                padding: 120px 0 60px;
                min-height: auto;
            }
            .category-hero h1 {
                font-size: 1.9rem;
            }
            .hero-stats-row {
                gap: 16px;
            }
            .section-header h2 {
                font-size: 1.7rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: left;
            }
            .cta-inner {
                flex-direction: column;
                text-align: left;
            }
        }
        @media (max-width: 520px) {
            .category-hero h1 {
                font-size: 1.6rem;
            }
            .hero-stats-row {
                flex-direction: column;
                gap: 12px;
            }
            .promo-card {
                padding: 20px;
            }
            .btn-cta-large {
                width: 100%;
                justify-content: center;
            }
        }

/* roulang page: category2 */
:root {
      --bg-primary: #0B1A30;
      --bg-secondary: #0F0C20;
      --bg-card: rgba(15, 12, 32, 0.85);
      --bg-overlay: rgba(11, 26, 48, 0.92);
      --accent-cyan: #00F0FF;
      --accent-lime: #CCFF00;
      --accent-pink: #FF007F;
      --text-primary: #FFFFFF;
      --text-secondary: #A6ACAF;
      --text-muted: #6B7280;
      --border-neon: rgba(0, 240, 255, 0.25);
      --border-glow: rgba(204, 255, 0, 0.30);
      --shadow-neon: 0 0 18px rgba(0, 240, 255, 0.35);
      --shadow-lime: 0 0 22px rgba(204, 255, 0, 0.40);
      --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-xl: 28px;
      --font-sans: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
      --font-display: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
      --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
      --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    }
    html {
      scroll-behavior: smooth;
      -webkit-text-size-adjust: 100%;
    }
    *, *::before, *::after {
      box-sizing: border-box;
    }
    body {
      font-family: var(--font-sans);
      background: var(--bg-primary);
      color: var(--text-primary);
      line-height: 1.6;
      min-height: 100vh;
      overflow-x: hidden;
      margin: 0;
      background-image: 
        radial-gradient(ellipse at 30% 15%, rgba(0, 240, 255, 0.07) 0%, transparent 55%),
        radial-gradient(ellipse at 75% 85%, rgba(204, 255, 0, 0.05) 0%, transparent 55%),
        radial-gradient(ellipse at 50% 50%, rgba(15, 12, 32, 0.94) 0%, rgba(11, 26, 48, 1) 100%);
      background-attachment: fixed;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    a {
      text-decoration: none;
      color: inherit;
      transition: color var(--transition-fast), opacity var(--transition-fast);
    }
    button {
      cursor: pointer;
      font-family: inherit;
      border: none;
      background: none;
      transition: all var(--transition-fast);
    }
    .container {
      width: 100%;
      max-width: 1240px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 1000;
      background: rgba(11, 26, 48, 0.85);
      backdrop-filter: blur(18px);
      -webkit-backdrop-filter: blur(18px);
      border-bottom: 1px solid var(--border-neon);
      transition: background var(--transition-smooth), box-shadow var(--transition-smooth);
      box-shadow: 0 2px 24px rgba(0, 0, 0, 0.4);
    }
    .site-header.scrolled {
      background: rgba(11, 26, 48, 0.96);
      box-shadow: 0 4px 32px rgba(0, 240, 255, 0.12);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 68px;
      gap: 28px;
    }
    .logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-family: var(--font-display);
      font-weight: 800;
      font-size: 1.25rem;
      color: var(--text-primary);
      letter-spacing: -0.3px;
      white-space: nowrap;
      transition: opacity var(--transition-fast);
    }
    .logo:hover {
      opacity: 0.85;
    }
    .logo-icon {
      width: 38px;
      height: 38px;
      background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.2rem;
      color: #0B1A30;
      box-shadow: var(--shadow-neon);
      flex-shrink: 0;
    }
    .logo-text {
      display: flex;
      flex-direction: column;
      line-height: 1.15;
    }
    .logo-text .brand-name {
      font-size: 0.95rem;
      font-weight: 800;
      color: #FFFFFF;
    }
    .logo-text .brand-sub {
      font-size: 0.65rem;
      font-weight: 500;
      color: var(--accent-cyan);
      letter-spacing: 0.6px;
    }
    .main-nav {
      display: flex;
      align-items: center;
      gap: 6px;
      flex-wrap: wrap;
    }
    .main-nav a {
      display: inline-flex;
      align-items: center;
      padding: 8px 16px;
      border-radius: 20px;
      font-size: 0.875rem;
      font-weight: 600;
      color: var(--text-secondary);
      transition: all var(--transition-fast);
      white-space: nowrap;
      position: relative;
    }
    .main-nav a:hover,
    .main-nav a.active {
      color: var(--accent-cyan);
      background: rgba(0, 240, 255, 0.08);
    }
    .main-nav a.active::after {
      content: '';
      position: absolute;
      bottom: 2px;
      left: 50%;
      transform: translateX(-50%);
      width: 18px;
      height: 2px;
      background: var(--accent-lime);
      border-radius: 2px;
      box-shadow: var(--shadow-lime);
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }
    .btn-outline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 9px 20px;
      border-radius: 22px;
      font-size: 0.85rem;
      font-weight: 600;
      border: 1.5px solid var(--accent-cyan);
      color: var(--accent-cyan);
      background: transparent;
      transition: all var(--transition-fast);
      white-space: nowrap;
    }
    .btn-outline:hover {
      background: rgba(0, 240, 255, 0.1);
      box-shadow: var(--shadow-neon);
      border-color: #FFFFFF;
      color: #FFFFFF;
    }
    .btn-solid {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      border-radius: 22px;
      font-size: 0.85rem;
      font-weight: 700;
      background: linear-gradient(135deg, var(--accent-lime), #88DD00);
      color: #0F0C20;
      border: none;
      transition: all var(--transition-fast);
      box-shadow: 0 4px 16px rgba(204, 255, 0, 0.30);
      white-space: nowrap;
    }
    .btn-solid:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 24px rgba(204, 255, 0, 0.50);
    }
    .mobile-toggle {
      display: none;
      width: 40px;
      height: 40px;
      align-items: center;
      justify-content: center;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-neon);
      color: var(--accent-cyan);
      font-size: 1.3rem;
      background: transparent;
    }
    .mobile-menu {
      display: none;
      position: fixed;
      top: 68px;
      left: 0;
      width: 100%;
      background: rgba(11, 26, 48, 0.97);
      backdrop-filter: blur(20px);
      border-bottom: 1px solid var(--border-neon);
      padding: 16px 20px;
      flex-direction: column;
      gap: 8px;
      z-index: 999;
    }
    .mobile-menu.open {
      display: flex;
    }
    .mobile-menu a {
      padding: 12px 16px;
      border-radius: var(--radius-sm);
      font-weight: 600;
      color: var(--text-secondary);
      transition: all var(--transition-fast);
    }
    .mobile-menu a:hover,
    .mobile-menu a.active {
      background: rgba(0, 240, 255, 0.08);
      color: var(--accent-cyan);
    }
    /* Page Banner */
    .page-banner {
      padding: 120px 0 60px;
      position: relative;
      overflow: hidden;
      background: linear-gradient(180deg, rgba(0, 240, 255, 0.06) 0%, transparent 60%);
    }
    .page-banner::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
      opacity: 0.12;
      z-index: 0;
    }
    .banner-content {
      position: relative;
      z-index: 1;
      max-width: 700px;
    }
    .banner-badge {
      display: inline-block;
      padding: 6px 16px;
      background: rgba(204, 255, 0, 0.12);
      border: 1px solid var(--border-glow);
      border-radius: 20px;
      font-size: 0.8rem;
      font-weight: 700;
      color: var(--accent-lime);
      letter-spacing: 0.8px;
      margin-bottom: 20px;
      text-transform: uppercase;
    }
    .page-banner h1 {
      font-family: var(--font-display);
      font-size: 2.8rem;
      font-weight: 800;
      line-height: 1.2;
      margin: 0 0 20px;
      color: var(--text-primary);
    }
    .page-banner h1 .highlight {
      background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .page-banner .subtitle {
      font-size: 1.15rem;
      color: var(--text-secondary);
      line-height: 1.65;
      margin-bottom: 28px;
    }
    .banner-actions {
      display: flex;
      gap: 14px;
      flex-wrap: wrap;
    }
    .btn-cta-large {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 14px 32px;
      border-radius: 28px;
      font-size: 1rem;
      font-weight: 700;
      background: linear-gradient(135deg, var(--accent-cyan), #00C8D6);
      color: #0B1A30;
      border: none;
      transition: all var(--transition-fast);
      box-shadow: var(--shadow-neon);
      white-space: nowrap;
    }
    .btn-cta-large:hover {
      transform: translateY(-3px);
      box-shadow: 0 8px 28px rgba(0, 240, 255, 0.55);
    }
    .btn-cta-outline {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 14px 32px;
      border-radius: 28px;
      font-size: 1rem;
      font-weight: 600;
      border: 2px solid rgba(255, 255, 255, 0.4);
      color: #FFFFFF;
      background: rgba(255, 255, 255, 0.05);
      transition: all var(--transition-fast);
      white-space: nowrap;
    }
    .btn-cta-outline:hover {
      border-color: var(--accent-lime);
      color: var(--accent-lime);
      background: rgba(204, 255, 0, 0.06);
    }
    /* Section Common */
    section {
      padding: 64px 0;
    }
    .section-header {
      margin-bottom: 40px;
    }
    .section-label {
      display: inline-block;
      font-size: 0.78rem;
      font-weight: 700;
      color: var(--accent-cyan);
      letter-spacing: 1px;
      text-transform: uppercase;
      margin-bottom: 10px;
    }
    .section-title {
      font-family: var(--font-display);
      font-size: 2rem;
      font-weight: 800;
      margin: 0 0 12px;
      color: var(--text-primary);
      line-height: 1.25;
    }
    .section-desc {
      font-size: 1.05rem;
      color: var(--text-secondary);
      line-height: 1.6;
      max-width: 680px;
    }
    /* Tips Grid */
    .tips-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 28px;
    }
    .tip-card {
      background: var(--bg-card);
      border: 1px solid var(--border-neon);
      border-radius: var(--radius-lg);
      padding: 30px 28px;
      transition: all var(--transition-smooth);
      position: relative;
      overflow: hidden;
      backdrop-filter: blur(8px);
    }
    .tip-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 3px;
      background: linear-gradient(90deg, var(--accent-cyan), var(--accent-lime));
      opacity: 0;
      transition: opacity var(--transition-smooth);
    }
    .tip-card:hover {
      transform: translateY(-6px);
      border-color: var(--accent-cyan);
      box-shadow: 0 16px 40px rgba(0, 240, 255, 0.15);
    }
    .tip-card:hover::before {
      opacity: 1;
    }
    .tip-number {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--accent-cyan), #00A8C0);
      color: #0B1A30;
      font-weight: 800;
      font-size: 1.1rem;
      margin-bottom: 16px;
      box-shadow: var(--shadow-neon);
    }
    .tip-card h3 {
      font-size: 1.25rem;
      font-weight: 700;
      margin: 0 0 10px;
      color: var(--text-primary);
    }
    .tip-card p {
      font-size: 0.95rem;
      color: var(--text-secondary);
      line-height: 1.6;
      margin: 0;
    }
    /* Process Steps */
    .steps-vertical {
      display: flex;
      flex-direction: column;
      gap: 28px;
      max-width: 800px;
      margin: 0 auto;
    }
    .step-item {
      display: flex;
      gap: 20px;
      align-items: flex-start;
      background: var(--bg-card);
      border: 1px solid var(--border-neon);
      border-radius: var(--radius-lg);
      padding: 24px;
      transition: all var(--transition-smooth);
    }
    .step-item:hover {
      border-color: var(--accent-lime);
      box-shadow: 0 8px 28px rgba(0, 0, 0, 0.3);
    }
    .step-marker {
      width: 50px;
      height: 50px;
      border-radius: 50%;
      background: rgba(204, 255, 0, 0.12);
      border: 2px solid var(--accent-lime);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1.2rem;
      color: var(--accent-lime);
      flex-shrink: 0;
      box-shadow: var(--shadow-lime);
    }
    .step-body h4 {
      font-size: 1.15rem;
      font-weight: 700;
      margin: 0 0 6px;
      color: var(--text-primary);
    }
    .step-body p {
      font-size: 0.95rem;
      color: var(--text-secondary);
      line-height: 1.55;
      margin: 0;
    }
    /* Video / Image Feature */
    .feature-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 40px;
      align-items: center;
    }
    .feature-image-wrapper {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--border-neon);
      box-shadow: var(--shadow-card);
    }
    .feature-image-wrapper img {
      width: 100%;
      height: auto;
      display: block;
      border-radius: var(--radius-lg);
    }
    .feature-image-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 50%, rgba(11, 26, 48, 0.6) 100%);
    }
    .feature-text h3 {
      font-size: 1.6rem;
      font-weight: 800;
      margin: 0 0 14px;
      color: var(--text-primary);
    }
    .feature-text p {
      font-size: 1rem;
      color: var(--text-secondary);
      line-height: 1.65;
      margin-bottom: 12px;
    }
    .feature-list {
      list-style: none;
      padding: 0;
      margin: 0 0 20px;
    }
    .feature-list li {
      padding: 8px 0;
      font-size: 0.95rem;
      color: var(--text-secondary);
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .feature-list li i {
      color: var(--accent-lime);
      font-size: 1rem;
      width: 20px;
      text-align: center;
    }
    /* Table */
    .table-responsive {
      overflow-x: auto;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-neon);
    }
    .data-table {
      width: 100%;
      border-collapse: collapse;
      min-width: 600px;
    }
    .data-table thead th {
      background: rgba(0, 240, 255, 0.06);
      padding: 14px 16px;
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--accent-cyan);
      text-align: left;
      border-bottom: 1px solid var(--border-neon);
    }
    .data-table tbody td {
      padding: 12px 16px;
      font-size: 0.9rem;
      color: var(--text-secondary);
      border-bottom: 1px solid rgba(0, 240, 255, 0.08);
    }
    .data-table tbody tr:hover td {
      background: rgba(0, 240, 255, 0.03);
    }
    /* FAQ */
    .faq-list {
      max-width: 800px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border-neon);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: all var(--transition-smooth);
    }
    .faq-item:hover {
      border-color: var(--accent-cyan);
    }
    .faq-question {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 18px 22px;
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-primary);
      background: transparent;
      cursor: pointer;
      border: none;
      text-align: left;
      transition: color var(--transition-fast);
    }
    .faq-question:hover {
      color: var(--accent-cyan);
    }
    .faq-question i {
      font-size: 0.8rem;
      color: var(--accent-lime);
      transition: transform var(--transition-fast);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease, padding 0.4s ease;
    }
    .faq-answer-inner {
      padding: 0 22px 18px;
      font-size: 0.92rem;
      color: var(--text-secondary);
      line-height: 1.6;
    }
    .faq-item.active .faq-answer {
      max-height: 260px;
    }
    .faq-item.active .faq-question i {
      transform: rotate(180deg);
    }
    /* CTA Section */
    .cta-section {
      background: linear-gradient(135deg, rgba(0, 240, 255, 0.05) 0%, rgba(204, 255, 0, 0.04) 100%);
      border: 1px solid var(--border-neon);
      border-radius: var(--radius-xl);
      padding: 48px;
      text-align: center;
      margin: 40px 0;
    }
    .cta-section h3 {
      font-size: 1.8rem;
      font-weight: 800;
      margin: 0 0 14px;
      color: var(--text-primary);
    }
    .cta-section p {
      font-size: 1.05rem;
      color: var(--text-secondary);
      max-width: 560px;
      margin: 0 auto 24px;
    }
    /* Footer */
    .site-footer {
      background: var(--bg-secondary);
      border-top: 1px solid var(--border-neon);
      padding: 48px 0 24px;
      margin-top: 40px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 30px;
      margin-bottom: 32px;
    }
    .footer-brand p {
      font-size: 0.88rem;
      color: var(--text-secondary);
      line-height: 1.55;
      margin: 14px 0 0;
    }
    .footer-col h5 {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--text-primary);
      margin: 0 0 14px;
    }
    .footer-col a {
      display: block;
      font-size: 0.85rem;
      color: var(--text-secondary);
      padding: 5px 0;
      transition: color var(--transition-fast);
    }
    .footer-col a:hover {
      color: var(--accent-cyan);
    }
    .footer-bottom {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 16px;
      border-top: 1px solid rgba(0, 240, 255, 0.1);
      padding-top: 20px;
      font-size: 0.82rem;
      color: var(--text-muted);
    }
    .footer-badges {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
    }
    .footer-badges span {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 0.8rem;
      color: var(--accent-cyan);
    }
    /* FAB */
    .fab-left {
      position: fixed;
      left: 16px;
      bottom: 80px;
      z-index: 50;
      width: 52px;
      height: 52px;
      border-radius: 50%;
      background: rgba(11, 26, 48, 0.75);
      backdrop-filter: blur(10px);
      border: 1.5px solid var(--accent-cyan);
      box-shadow: 0 0 16px rgba(0, 240, 255, 0.4);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--accent-cyan);
      font-size: 1.3rem;
      transition: all var(--transition-smooth);
      animation: floatBadge 3s ease-in-out infinite;
    }
    .fab-left:hover {
      transform: scale(1.12);
      box-shadow: 0 0 28px rgba(0, 240, 255, 0.7);
      border-color: #FFFFFF;
      color: #FFFFFF;
    }
    @keyframes floatBadge {
      0%, 100% { transform: translateY(0); }
      50% { transform: translateY(-6px); }
    }
    /* Responsive */
    @media (max-width: 960px) {
      .feature-row {
        grid-template-columns: 1fr;
        gap: 24px;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .main-nav {
        display: none;
      }
      .mobile-toggle {
        display: flex;
      }
      .page-banner h1 {
        font-size: 2.2rem;
      }
      .tips-grid {
        grid-template-columns: 1fr;
      }
      .cta-section {
        padding: 32px 20px;
      }
    }
    @media (max-width: 640px) {
      .page-banner h1 {
        font-size: 1.7rem;
      }
      .banner-actions {
        flex-direction: column;
        gap: 10px;
      }
      .btn-cta-large, .btn-cta-outline {
        width: 100%;
        justify-content: center;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .header-actions .btn-outline,
      .header-actions .btn-solid {
        padding: 8px 14px;
        font-size: 0.75rem;
      }
    }

/* roulang page: category3 */
:root {
            --bg-primary: #0B1A30;
            --bg-secondary: #0F0C20;
            --bg-card: rgba(15, 12, 32, 0.85);
            --bg-overlay: rgba(11, 26, 48, 0.92);
            --accent-cyan: #00F0FF;
            --accent-lime: #CCFF00;
            --accent-pink: #FF007F;
            --text-primary: #FFFFFF;
            --text-secondary: #A6ACAF;
            --text-muted: #6B7280;
            --border-neon: rgba(0, 240, 255, 0.25);
            --border-glow: rgba(204, 255, 0, 0.30);
            --shadow-neon: 0 0 18px rgba(0, 240, 255, 0.35);
            --shadow-lime: 0 0 22px rgba(204, 255, 0, 0.40);
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --font-sans: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            --font-display: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: var(--font-sans);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            min-height: 100vh;
            overflow-x: hidden;
            background-image: radial-gradient(ellipse at 30% 15%, rgba(0, 240, 255, 0.07) 0%, transparent 55%), radial-gradient(ellipse at 75% 85%, rgba(204, 255, 0, 0.05) 0%, transparent 55%), radial-gradient(ellipse at 50% 50%, rgba(15, 12, 32, 0.94) 0%, rgba(11, 26, 48, 1) 100%);
            background-attachment: fixed;
            margin: 0;
        }

        * {
            box-sizing: border-box;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
            transition: all var(--transition-fast);
        }

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

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(11, 26, 48, 0.85);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-neon);
            transition: background var(--transition-smooth), box-shadow var(--transition-smooth);
            box-shadow: 0 2px 24px rgba(0, 0, 0, 0.4);
        }

        .site-header.scrolled {
            background: rgba(11, 26, 48, 0.96);
            box-shadow: 0 4px 32px rgba(0, 240, 255, 0.12);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 28px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-display);
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--text-primary);
            letter-spacing: -0.3px;
            white-space: nowrap;
            transition: opacity var(--transition-fast);
        }

        .logo:hover {
            opacity: 0.85;
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: #0B1A30;
            box-shadow: var(--shadow-neon);
            flex-shrink: 0;
        }

        .logo-text {
            display: flex;
            flex-direction: column;
            line-height: 1.15;
        }

        .logo-text .brand-name {
            font-size: 0.95rem;
            font-weight: 800;
            color: #FFFFFF;
        }

        .logo-text .brand-sub {
            font-size: 0.65rem;
            font-weight: 500;
            color: var(--accent-cyan);
            letter-spacing: 0.6px;
        }

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

        .main-nav a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .main-nav a:hover,
        .main-nav a.active {
            color: var(--accent-cyan);
            background: rgba(0, 240, 255, 0.08);
        }

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

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

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 9px 20px;
            border-radius: 22px;
            font-size: 0.85rem;
            font-weight: 600;
            border: 1.5px solid var(--accent-cyan);
            color: var(--accent-cyan);
            background: transparent;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-outline:hover {
            background: rgba(0, 240, 255, 0.1);
            box-shadow: var(--shadow-neon);
            border-color: #FFFFFF;
            color: #FFFFFF;
        }

        .btn-solid {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 22px;
            border-radius: 22px;
            font-size: 0.85rem;
            font-weight: 700;
            background: linear-gradient(135deg, var(--accent-lime), #88DD00);
            color: #0F0C20;
            border: none;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 16px rgba(204, 255, 0, 0.30);
            white-space: nowrap;
        }

        .btn-solid:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(204, 255, 0, 0.50);
        }

        .mobile-toggle {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-neon);
            color: var(--accent-cyan);
            font-size: 1.3rem;
            background: transparent;
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 68px;
            left: 0;
            width: 100%;
            background: rgba(11, 26, 48, 0.97);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-neon);
            padding: 16px 20px;
            flex-direction: column;
            gap: 8px;
            z-index: 999;
        }

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

        .mobile-menu a {
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            background: rgba(0, 240, 255, 0.08);
            color: var(--accent-cyan);
        }

        .page-banner {
            position: relative;
            padding: 120px 0 80px;
            background-image: url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center 40%;
            background-repeat: no-repeat;
            min-height: 420px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 26, 48, 0.88) 0%, rgba(15, 12, 32, 0.78) 50%, rgba(11, 26, 48, 0.90) 100%);
            z-index: 1;
        }

        .page-banner .container {
            position: relative;
            z-index: 2;
        }

        .page-banner h1 {
            font-size: 2.8rem;
            font-weight: 900;
            color: #FFFFFF;
            margin: 0 0 16px;
            line-height: 1.2;
            text-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
        }

        .page-banner h1 span {
            color: var(--accent-cyan);
            display: inline-block;
        }

        .page-banner .banner-subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 650px;
            line-height: 1.7;
            margin: 0 0 24px;
        }

        .progress-hero-block {
            display: flex;
            align-items: center;
            gap: 32px;
            flex-wrap: wrap;
            margin-top: 20px;
        }

        .progress-ring-wrap {
            position: relative;
            width: 140px;
            height: 140px;
            flex-shrink: 0;
        }

        .progress-ring {
            transform: rotate(-90deg);
            width: 140px;
            height: 140px;
        }

        .progress-ring .bg-circle {
            fill: none;
            stroke: rgba(255, 255, 255, 0.1);
            stroke-width: 10;
        }

        .progress-ring .fg-circle {
            fill: none;
            stroke: var(--accent-lime);
            stroke-width: 10;
            stroke-linecap: round;
            stroke-dasharray: 380;
            stroke-dashoffset: 76;
            filter: drop-shadow(0 0 12px rgba(204, 255, 0, 0.6));
            transition: stroke-dashoffset 1.2s ease;
        }

        .progress-ring-wrap .progress-text {
            position: absolute;
            inset: 0;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
        }

        .progress-text .progress-percent {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-lime);
            line-height: 1;
        }

        .progress-text .progress-label {
            font-size: 0.7rem;
            color: var(--text-secondary);
            margin-top: 4px;
            text-transform: uppercase;
            letter-spacing: 0.8px;
        }

        .progress-details {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .progress-tier {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 16px;
            background: rgba(0, 240, 255, 0.06);
            border: 1px solid var(--border-neon);
            border-radius: var(--radius-sm);
            min-width: 220px;
            transition: all var(--transition-fast);
            cursor: default;
        }

        .progress-tier:hover {
            background: rgba(0, 240, 255, 0.12);
            border-color: var(--accent-cyan);
            box-shadow: var(--shadow-neon);
        }

        .progress-tier .tier-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
            color: #0B1A30;
            font-weight: 800;
            flex-shrink: 0;
        }

        .progress-tier .tier-info {
            line-height: 1.3;
        }

        .tier-info .tier-name {
            font-weight: 700;
            color: #FFFFFF;
            font-size: 0.9rem;
        }

        .tier-info .tier-reward {
            font-size: 0.75rem;
            color: var(--text-secondary);
        }

        .progress-btn {
            margin-top: 8px;
        }

        .review-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
            gap: 28px;
            margin: 40px 0;
        }

        .review-card {
            background: var(--bg-card);
            border: 1px solid var(--border-neon);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-card);
            display: flex;
            flex-direction: column;
        }

        .review-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 14px 42px rgba(0, 240, 255, 0.20);
            border-color: var(--accent-cyan);
        }

        .review-card .card-img-wrap {
            position: relative;
            height: 200px;
            overflow: hidden;
        }

        .review-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-smooth);
        }

        .review-card:hover .card-img-wrap img {
            transform: scale(1.08);
        }

        .review-card .card-rating {
            position: absolute;
            top: 12px;
            right: 12px;
            background: rgba(15, 12, 32, 0.9);
            backdrop-filter: blur(8px);
            padding: 6px 12px;
            border-radius: 20px;
            font-weight: 700;
            font-size: 0.8rem;
            color: var(--accent-lime);
            display: flex;
            align-items: center;
            gap: 4px;
            border: 1px solid var(--border-glow);
        }

        .review-card .card-body {
            padding: 20px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .review-card .card-title {
            font-size: 1.25rem;
            font-weight: 800;
            margin: 0 0 8px;
            color: #FFFFFF;
            line-height: 1.3;
        }

        .review-card .card-desc {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0 0 16px;
            flex: 1;
        }

        .review-card .card-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 16px;
        }

        .review-card .card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 0.75rem;
            padding: 4px 10px;
            border-radius: 14px;
            background: rgba(0, 240, 255, 0.06);
            color: var(--accent-cyan);
            border: 1px solid var(--border-neon);
        }

        .btn-card {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 10px 20px;
            border-radius: 22px;
            font-weight: 700;
            font-size: 0.85rem;
            background: linear-gradient(135deg, var(--accent-cyan), #00B8D4);
            color: #0B1A30;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 14px rgba(0, 240, 255, 0.30);
            border: none;
        }

        .btn-card:hover {
            box-shadow: 0 6px 22px rgba(0, 240, 255, 0.50);
            transform: translateY(-2px);
        }

        .section-title {
            font-size: 2rem;
            font-weight: 900;
            color: #FFFFFF;
            margin: 0 0 12px;
            line-height: 1.2;
        }

        .section-title span {
            color: var(--accent-cyan);
        }

        .section-desc {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 700px;
            line-height: 1.7;
            margin: 0 0 40px;
        }

        .feature-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 20px;
            margin: 40px 0;
        }

        .feature-item {
            padding: 24px;
            background: rgba(15, 12, 32, 0.6);
            border: 1px solid var(--border-neon);
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
        }

        .feature-item:hover {
            border-color: var(--accent-cyan);
            box-shadow: var(--shadow-neon);
        }

        .feature-item .feature-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, rgba(0, 240, 255, 0.15), rgba(204, 255, 0, 0.10));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--accent-cyan);
            margin-bottom: 16px;
        }

        .feature-item h4 {
            font-weight: 700;
            font-size: 1rem;
            color: #FFFFFF;
            margin: 0 0 8px;
        }

        .feature-item p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
        }

        .comparison-table-wrap {
            overflow-x: auto;
            margin: 40px 0;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-neon);
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 700px;
            background: var(--bg-card);
        }

        .comparison-table thead th {
            padding: 16px 20px;
            font-weight: 700;
            font-size: 0.85rem;
            color: var(--accent-lime);
            text-align: left;
            background: rgba(0, 240, 255, 0.06);
            border-bottom: 1px solid var(--border-neon);
            white-space: nowrap;
        }

        .comparison-table tbody td {
            padding: 14px 20px;
            font-size: 0.85rem;
            color: var(--text-secondary);
            border-bottom: 1px solid rgba(0, 240, 255, 0.08);
            vertical-align: middle;
        }

        .comparison-table tbody tr:hover td {
            background: rgba(0, 240, 255, 0.03);
        }

        .comparison-table .game-name {
            font-weight: 700;
            color: #FFFFFF;
        }

        .comparison-table .star-rating {
            color: var(--accent-lime);
            white-space: nowrap;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
            margin: 40px 0;
        }

        .faq-item {
            background: rgba(15, 12, 32, 0.6);
            border: 1px solid var(--border-neon);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

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

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            font-weight: 700;
            font-size: 0.95rem;
            color: #FFFFFF;
            text-align: left;
            background: transparent;
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            gap: 12px;
        }

        .faq-question i {
            font-size: 0.8rem;
            color: var(--accent-cyan);
            transition: transform var(--transition-fast);
            flex-shrink: 0;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 22px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }

        .faq-answer p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        .cta-section {
            background: linear-gradient(135deg, rgba(0, 240, 255, 0.08) 0%, rgba(204, 255, 0, 0.05) 100%);
            border: 1px solid var(--border-neon);
            border-radius: var(--radius-xl);
            padding: 48px 32px;
            text-align: center;
            margin: 48px 0;
        }

        .cta-section h3 {
            font-size: 1.75rem;
            font-weight: 800;
            color: #FFFFFF;
            margin: 0 0 12px;
        }

        .cta-section p {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 550px;
            margin: 0 auto 24px;
            line-height: 1.6;
        }

        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            border-radius: 28px;
            font-weight: 800;
            font-size: 1rem;
            background: linear-gradient(135deg, var(--accent-lime), #88DD00);
            color: #0F0C20;
            border: none;
            transition: all var(--transition-fast);
            box-shadow: 0 6px 22px rgba(204, 255, 0, 0.40);
        }

        .btn-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 32px rgba(204, 255, 0, 0.60);
        }

        .site-footer {
            background: rgba(11, 26, 48, 0.95);
            border-top: 1px solid var(--border-neon);
            padding: 48px 0 24px;
            margin-top: 60px;
        }

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

        .footer-brand .logo {
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
        }

        .footer-col h5 {
            font-weight: 700;
            font-size: 0.9rem;
            color: #FFFFFF;
            margin: 0 0 14px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .footer-col a {
            display: block;
            font-size: 0.85rem;
            color: var(--text-secondary);
            padding: 6px 0;
            transition: color var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--accent-cyan);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            padding-top: 20px;
            border-top: 1px solid rgba(0, 240, 255, 0.12);
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .footer-badges {
            display: flex;
            gap: 16px;
            align-items: center;
        }

        .footer-badges span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 0.75rem;
            color: var(--accent-cyan);
        }

        .fab-left {
            position: fixed;
            left: 20px;
            bottom: 96px;
            z-index: 50;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: rgba(15, 12, 32, 0.85);
            backdrop-filter: blur(14px);
            border: 1.5px solid transparent;
            background-clip: padding-box;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--accent-cyan);
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.50);
            transition: all var(--transition-fast);
            animation: fab-pulse 2.8s ease-in-out infinite;
            cursor: pointer;
        }

        .fab-left::before {
            content: '';
            position: absolute;
            inset: -2px;
            border-radius: 50%;
            padding: 2px;
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            -webkit-mask-composite: xor;
            mask-composite: exclude;
        }

        .fab-left:hover {
            transform: scale(1.1);
            box-shadow: 0 0 28px rgba(0, 240, 255, 0.75);
        }

        @keyframes fab-pulse {
            0%,
            100% {
                opacity: 0.75;
            }
            50% {
                opacity: 1;
            }
        }

        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .review-grid {
                grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            }
        }

        @media (max-width: 768px) {
            .main-nav {
                display: none;
            }
            .mobile-toggle {
                display: flex;
            }
            .header-actions .btn-outline,
            .header-actions .btn-solid {
                display: inline-flex;
            }
            .page-banner h1 {
                font-size: 1.9rem;
            }
            .progress-hero-block {
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .review-grid {
                grid-template-columns: 1fr;
            }
            .feature-list {
                grid-template-columns: 1fr;
            }
            .comparison-table-wrap {
                margin-left: -20px;
                margin-right: -20px;
                border-radius: 0;
            }
        }

        @media (max-width: 520px) {
            .page-banner {
                padding: 100px 0 50px;
                min-height: 350px;
            }
            .page-banner h1 {
                font-size: 1.5rem;
            }
            .cta-section {
                padding: 32px 20px;
            }
            .cta-section h3 {
                font-size: 1.3rem;
            }
            .fab-left {
                width: 44px;
                height: 44px;
                left: 12px;
                bottom: 80px;
                font-size: 1.2rem;
            }
        }

/* roulang page: category4 */
:root {
      --bg-primary: #0B1A30;
      --bg-secondary: #0F0C20;
      --bg-card: rgba(15, 12, 32, 0.85);
      --bg-overlay: rgba(11, 26, 48, 0.92);
      --accent-cyan: #00F0FF;
      --accent-lime: #CCFF00;
      --accent-pink: #FF007F;
      --text-primary: #FFFFFF;
      --text-secondary: #A6ACAF;
      --text-muted: #6B7280;
      --border-neon: rgba(0, 240, 255, 0.25);
      --border-glow: rgba(204, 255, 0, 0.30);
      --shadow-neon: 0 0 18px rgba(0, 240, 255, 0.35);
      --shadow-lime: 0 0 22px rgba(204, 255, 0, 0.40);
      --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-xl: 28px;
      --font-sans: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
      --font-display: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
      --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
      --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    }
    * {
      box-sizing: border-box;
    }
    html {
      scroll-behavior: smooth;
      -webkit-text-size-adjust: 100%;
    }
    body {
      font-family: var(--font-sans);
      background: var(--bg-primary);
      color: var(--text-primary);
      line-height: 1.6;
      min-height: 100vh;
      overflow-x: hidden;
      margin: 0;
      padding: 0;
      background-image: 
        radial-gradient(ellipse at 30% 15%, rgba(0, 240, 255, 0.07) 0%, transparent 55%),
        radial-gradient(ellipse at 75% 85%, rgba(204, 255, 0, 0.05) 0%, transparent 55%),
        radial-gradient(ellipse at 50% 50%, rgba(15, 12, 32, 0.94) 0%, rgba(11, 26, 48, 1) 100%);
      background-attachment: fixed;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    a {
      text-decoration: none;
      color: inherit;
      transition: color var(--transition-fast), opacity var(--transition-fast);
    }
    button {
      cursor: pointer;
      font-family: inherit;
      border: none;
      background: none;
      transition: all var(--transition-fast);
    }
    .container {
      max-width: 1240px;
    }

    /* Header */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 1000;
      background: rgba(11, 26, 48, 0.85);
      backdrop-filter: blur(18px);
      -webkit-backdrop-filter: blur(18px);
      border-bottom: 1px solid var(--border-neon);
      box-shadow: 0 2px 24px rgba(0, 0, 0, 0.4);
    }
    .site-header .container {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 68px;
    }
    .logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-family: var(--font-display);
      font-weight: 800;
      font-size: 1.25rem;
      color: var(--text-primary);
      letter-spacing: -0.3px;
      white-space: nowrap;
      transition: opacity var(--transition-fast);
      text-decoration: none;
    }
    .logo:hover {
      opacity: 0.85;
    }
    .logo-icon {
      width: 38px;
      height: 38px;
      background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.2rem;
      color: #0B1A30;
      box-shadow: var(--shadow-neon);
      flex-shrink: 0;
    }
    .logo-text {
      display: flex;
      flex-direction: column;
      line-height: 1.15;
    }
    .logo-text .brand-name {
      font-size: 0.95rem;
      font-weight: 800;
      color: #FFFFFF;
    }
    .logo-text .brand-sub {
      font-size: 0.65rem;
      font-weight: 500;
      color: var(--accent-cyan);
      letter-spacing: 0.6px;
    }
    .main-nav {
      display: flex;
      align-items: center;
      gap: 6px;
      flex-wrap: wrap;
    }
    .main-nav a {
      display: inline-flex;
      align-items: center;
      padding: 8px 16px;
      border-radius: 20px;
      font-size: 0.875rem;
      font-weight: 600;
      color: var(--text-secondary);
      transition: all var(--transition-fast);
      white-space: nowrap;
      position: relative;
      text-decoration: none;
    }
    .main-nav a:hover,
    .main-nav a.active {
      color: var(--accent-cyan);
      background: rgba(0, 240, 255, 0.08);
    }
    .main-nav a.active::after {
      content: '';
      position: absolute;
      bottom: 2px;
      left: 50%;
      transform: translateX(-50%);
      width: 18px;
      height: 2px;
      background: var(--accent-lime);
      border-radius: 2px;
      box-shadow: var(--shadow-lime);
    }
    .header-actions {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }
    .btn-outline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 9px 20px;
      border-radius: 22px;
      font-size: 0.85rem;
      font-weight: 600;
      border: 1.5px solid var(--accent-cyan);
      color: var(--accent-cyan);
      background: transparent;
      transition: all var(--transition-fast);
      white-space: nowrap;
      text-decoration: none;
    }
    .btn-outline:hover {
      background: rgba(0, 240, 255, 0.1);
      box-shadow: var(--shadow-neon);
      border-color: #FFFFFF;
      color: #FFFFFF;
    }
    .btn-solid {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      border-radius: 22px;
      font-size: 0.85rem;
      font-weight: 700;
      background: linear-gradient(135deg, var(--accent-lime), #88DD00);
      color: #0F0C20;
      border: none;
      transition: all var(--transition-fast);
      box-shadow: 0 4px 16px rgba(204, 255, 0, 0.30);
      white-space: nowrap;
      text-decoration: none;
    }
    .btn-solid:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 24px rgba(204, 255, 0, 0.50);
    }
    .mobile-toggle {
      display: none;
      width: 40px;
      height: 40px;
      align-items: center;
      justify-content: center;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border-neon);
      color: var(--accent-cyan);
      font-size: 1.3rem;
      background: transparent;
    }
    .mobile-menu {
      display: none;
      position: fixed;
      top: 68px;
      left: 0;
      width: 100%;
      background: rgba(11, 26, 48, 0.97);
      backdrop-filter: blur(20px);
      border-bottom: 1px solid var(--border-neon);
      padding: 16px 20px;
      flex-direction: column;
      gap: 8px;
      z-index: 999;
    }
    .mobile-menu.open {
      display: flex;
    }
    .mobile-menu a {
      padding: 12px 16px;
      border-radius: var(--radius-sm);
      font-weight: 600;
      color: var(--text-secondary);
      transition: all var(--transition-fast);
      text-decoration: none;
    }
    .mobile-menu a:hover,
    .mobile-menu a.active {
      background: rgba(0, 240, 255, 0.08);
      color: var(--accent-cyan);
    }

    /* Page Hero */
    .page-hero {
      padding: 140px 0 80px;
      position: relative;
      text-align: left;
    }
    .page-hero::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(0,240,255,0.03) 0%, transparent 70%);
      pointer-events: none;
    }
    .page-hero h1 {
      font-size: 2.8rem;
      font-weight: 800;
      letter-spacing: -0.5px;
      margin-bottom: 1rem;
      color: var(--text-primary);
    }
    .page-hero h1 span {
      background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .page-hero .lead {
      font-size: 1.15rem;
      color: var(--text-secondary);
      max-width: 700px;
      margin-bottom: 2rem;
    }

    /* Promo Cards */
    .promo-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
      gap: 28px;
      margin-bottom: 60px;
    }
    .promo-card {
      background: var(--bg-card);
      border: 1px solid var(--border-neon);
      border-radius: var(--radius-lg);
      padding: 28px;
      transition: all var(--transition-smooth);
      position: relative;
      overflow: hidden;
      box-shadow: var(--shadow-card);
    }
    .promo-card:hover {
      border-color: var(--accent-cyan);
      box-shadow: var(--shadow-neon);
      transform: translateY(-4px);
    }
    .promo-card .promo-tag {
      display: inline-block;
      background: var(--accent-pink);
      color: #fff;
      font-size: 0.7rem;
      font-weight: 700;
      padding: 4px 12px;
      border-radius: 20px;
      letter-spacing: 0.5px;
      margin-bottom: 16px;
    }
    .promo-card h3 {
      font-size: 1.35rem;
      font-weight: 700;
      margin-bottom: 10px;
      color: var(--text-primary);
    }
    .promo-card .promo-value {
      font-size: 2.2rem;
      font-weight: 800;
      background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      margin-bottom: 8px;
    }
    .promo-card p {
      color: var(--text-secondary);
      font-size: 0.9rem;
      margin-bottom: 16px;
    }
    .promo-card .promo-code {
      background: rgba(0,240,255,0.1);
      border: 1px dashed var(--accent-cyan);
      padding: 8px 16px;
      border-radius: var(--radius-sm);
      font-family: monospace;
      color: var(--accent-cyan);
      font-size: 0.9rem;
      display: inline-block;
    }

    /* Steps Section */
    .steps-section {
      padding: 70px 0;
      background: rgba(15,12,32,0.4);
      border-top: 1px solid var(--border-neon);
      border-bottom: 1px solid var(--border-neon);
    }
    .step-row {
      display: flex;
      gap: 24px;
      flex-wrap: wrap;
    }
    .step-item {
      flex: 1;
      min-width: 200px;
      text-align: left;
      padding: 24px;
      background: rgba(11,26,48,0.6);
      border-radius: var(--radius-md);
      border: 1px solid transparent;
      transition: all var(--transition-fast);
    }
    .step-item:hover {
      border-color: var(--accent-cyan);
    }
    .step-num {
      font-size: 2.4rem;
      font-weight: 800;
      color: var(--accent-cyan);
      opacity: 0.7;
      margin-bottom: 8px;
    }
    .step-item h4 {
      font-weight: 700;
      margin-bottom: 6px;
    }

    /* FAQ */
    .faq-section {
      padding: 70px 0;
    }
    .faq-item {
      border-bottom: 1px solid var(--border-neon);
      padding: 18px 0;
    }
    .faq-item h5 {
      font-weight: 700;
      font-size: 1.05rem;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin: 0;
      color: var(--text-primary);
    }
    .faq-item h5 i {
      color: var(--accent-cyan);
      transition: transform var(--transition-fast);
    }
    .faq-item .faq-body {
      padding-top: 10px;
      color: var(--text-secondary);
      font-size: 0.9rem;
      display: none;
    }
    .faq-item.open .faq-body {
      display: block;
    }
    .faq-item.open h5 i {
      transform: rotate(180deg);
    }

    /* CTA Section */
    .cta-section {
      padding: 70px 0;
      text-align: center;
      background: radial-gradient(ellipse at 50% 50%, rgba(0,240,255,0.08) 0%, transparent 70%);
      border-radius: var(--radius-xl);
      margin-bottom: 40px;
    }
    .cta-section h2 {
      font-weight: 800;
      font-size: 2rem;
      margin-bottom: 1rem;
    }
    .cta-section .btn-solid {
      padding: 14px 36px;
      font-size: 1rem;
      border-radius: 28px;
    }

    /* Footer */
    .site-footer {
      background: rgba(10, 15, 30, 0.95);
      border-top: 1px solid var(--border-neon);
      padding: 50px 0 25px;
      color: var(--text-secondary);
      font-size: 0.9rem;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 30px;
      margin-bottom: 30px;
    }
    .footer-brand .logo {
      margin-bottom: 12px;
    }
    .footer-brand p {
      color: var(--text-muted);
      font-size: 0.85rem;
    }
    .footer-col h5 {
      color: var(--accent-cyan);
      font-weight: 700;
      margin-bottom: 12px;
      font-size: 0.95rem;
    }
    .footer-col a {
      display: block;
      color: var(--text-secondary);
      font-size: 0.85rem;
      margin-bottom: 8px;
      transition: color var(--transition-fast);
      text-decoration: none;
    }
    .footer-col a:hover {
      color: var(--accent-lime);
    }
    .footer-bottom {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
      padding-top: 20px;
      border-top: 1px solid rgba(255,255,255,0.05);
      font-size: 0.8rem;
      color: var(--text-muted);
    }
    .footer-badges span {
      margin-left: 16px;
      color: var(--accent-cyan);
    }

    /* FAB */
    .fab-left {
      position: fixed;
      left: 20px;
      bottom: 80px;
      z-index: 50;
      width: 50px;
      height: 50px;
      background: rgba(0,0,0,0.7);
      backdrop-filter: blur(12px);
      border-radius: 50%;
      border: 2px solid var(--accent-cyan);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--accent-cyan);
      font-size: 1.3rem;
      box-shadow: 0 0 15px rgba(0,240,255,0.4);
      transition: all var(--transition-fast);
      text-decoration: none;
    }
    .fab-left:hover {
      box-shadow: 0 0 28px rgba(0,240,255,0.7);
      transform: scale(1.08);
    }

    /* Responsive */
    @media (max-width: 992px) {
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .promo-grid {
        grid-template-columns: 1fr;
      }
      .page-hero h1 {
        font-size: 2.2rem;
      }
    }
    @media (max-width: 768px) {
      .main-nav {
        display: none;
      }
      .mobile-toggle {
        display: flex;
      }
      .header-actions {
        display: none;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        text-align: center;
      }
      .page-hero {
        padding-top: 110px;
      }
      .page-hero h1 {
        font-size: 1.8rem;
      }
    }
    @media (max-width: 520px) {
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .step-row {
        flex-direction: column;
      }
    }