/* roulang page: index */
:root {
  --bg-primary: #0A2E1C;
  --bg-secondary: #123E25;
  --bg-tertiary: #0D3520;
  --bg-card: #143E28;
  --bg-dark-card: #0B2415;
  --accent-gold: #FFD700;
  --accent-gold-hover: #FFC300;
  --accent-red: #D32F2F;
  --accent-red-hover: #C62828;
  --text-white: #FFFFFF;
  --text-pale: #D1F2EB;
  --text-muted: #A8CFC0;
  --text-dark: #1A1A1A;
  --border-gold: rgba(255, 215, 0, 0.35);
  --border-subtle: rgba(209, 242, 235, 0.15);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.18);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.25);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.35);
  --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.22);
  --shadow-red: 0 4px 16px rgba(211, 47, 47, 0.25);
  --font-family: 'Be Vietnam Pro', 'Segoe UI', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --container-max: 1200px;
  --header-height: 72px;
  --transition: 0.28s ease;
  --transition-fast: 0.18s ease;
  --transition-slow: 0.45s ease;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-family);
  background: var(--bg-primary);
  color: var(--text-white);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: color var(--transition); }
button { font-family: inherit; cursor: pointer; border: none; background: none; transition: all var(--transition-fast); }
input, select, textarea { font-family: inherit; font-size: 16px; }
ul, ol { list-style: none; }
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid var(--accent-gold);
  outline-offset: 2px;
  border-radius: 4px;
}
.container { width: 100%; max-width: var(--container-max); margin: 0 auto; padding: 0 24px; }
.section { padding: 68px 0; position: relative; }
.section--alt { background: var(--bg-secondary); }
.section--dark { background: var(--bg-tertiary); }
.section__label {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 12px;
}
.section__title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  line-height: 1.28;
  color: var(--text-white);
  margin-bottom: 14px;
  letter-spacing: -0.01em;
}
.section__desc {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.65;
  max-width: 640px;
  margin-bottom: 36px;
}
.text-gold { color: var(--accent-gold); }
.text-pale { color: var(--text-pale); }
.text-muted { color: var(--text-muted); }
.mb-0 { margin-bottom: 0 !important; }
.mb-8 { margin-bottom: 8px !important; }
.mb-12 { margin-bottom: 12px !important; }
.mb-16 { margin-bottom: 16px !important; }
.mb-20 { margin-bottom: 20px !important; }
.mb-24 { margin-bottom: 24px !important; }
.mb-32 { margin-bottom: 32px !important; }
/* ========== Header / Navigation ========== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background: rgba(10, 46, 28, 0.92);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border-gold);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 16px;
}
.header__logo {
  flex-shrink: 0;
}
.header__logo a {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--accent-gold);
  letter-spacing: -0.01em;
  line-height: 1.2;
  display: flex;
  flex-direction: column;
}
.header__logo a span {
  font-size: 0.66rem;
  font-weight: 400;
  color: var(--text-pale);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.header__nav {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  justify-content: center;
}
.header__nav-link {
  display: block;
  padding: 10px 16px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-pale);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  position: relative;
  white-space: nowrap;
}
.header__nav-link:hover {
  color: var(--accent-gold);
  background: rgba(255, 215, 0, 0.08);
}
.header__nav-link.active {
  color: var(--accent-gold);
  background: rgba(255, 215, 0, 0.12);
}
.header__nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  background: var(--accent-gold);
  border-radius: 2px;
}
.header__auth {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.btn--ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-pale);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  white-space: nowrap;
}
.btn--ghost:hover {
  color: var(--accent-gold);
  border-color: var(--border-gold);
  background: rgba(255, 215, 0, 0.06);
}
.btn--primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-dark);
  background: var(--accent-gold);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  white-space: nowrap;
  box-shadow: var(--shadow-gold);
}
.btn--primary:hover {
  background: var(--accent-gold-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(255, 215, 0, 0.3);
}
.btn--primary:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}
.header__toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--text-pale);
  font-size: 1.3rem;
  transition: all var(--transition);
}
.header__toggle:hover {
  color: var(--accent-gold);
  background: rgba(255, 215, 0, 0.1);
}
/* ========== Hero ========== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background-image: linear-gradient(rgba(10, 46, 28, 0.82), rgba(10, 46, 28, 0.88)), url('/assets/images/backpic/back-1.jpg');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  padding: calc(var(--header-height) + 60px) 0 80px;
  position: relative;
}
.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at 30% 40%, rgba(255, 215, 0, 0.08) 0%, transparent 60%),
              radial-gradient(ellipse at 70% 60%, rgba(18, 62, 37, 0.6) 0%, transparent 55%);
  pointer-events: none;
}
.hero__inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.hero__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 22px;
}
.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--text-pale);
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid var(--border-gold);
  border-radius: 50px;
  backdrop-filter: blur(10px);
}
.hero__badge--gold {
  background: rgba(255, 215, 0, 0.15);
  color: var(--accent-gold);
  border-color: var(--accent-gold);
}
.hero__badge--red {
  background: rgba(211, 47, 47, 0.18);
  color: #FF6B6B;
  border-color: rgba(211, 47, 47, 0.5);
}
.hero__title {
  font-size: clamp(1.8rem, 4vw, 3.2rem);
  font-weight: 700;
  line-height: 1.22;
  color: var(--text-white);
  margin-bottom: 20px;
  letter-spacing: -0.01em;
}
.hero__title .highlight {
  color: var(--accent-gold);
  display: block;
  font-size: 0.8em;
  margin-top: 8px;
}
.hero__desc {
  font-size: 1.02rem;
  color: var(--text-pale);
  line-height: 1.65;
  max-width: 520px;
  margin-bottom: 30px;
}
.hero__cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 28px;
}
.btn--lg {
  padding: 14px 32px;
  font-size: 0.95rem;
  border-radius: var(--radius-md);
}
.btn--outline-gold {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--accent-gold);
  border: 1.5px solid var(--accent-gold);
  border-radius: var(--radius-md);
  transition: all var(--transition);
  background: transparent;
}
.btn--outline-gold:hover {
  background: rgba(255, 215, 0, 0.12);
  transform: translateY(-1px);
  box-shadow: var(--shadow-gold);
}
.hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
}
.hero__stat {
  display: flex;
  flex-direction: column;
}
.hero__stat-num {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--accent-gold);
  line-height: 1.1;
}
.hero__stat-label {
  font-size: 0.78rem;
  color: var(--text-muted);
}
.hero__visual {
  display: flex;
  flex-direction: column;
  gap: 20px;
  align-items: center;
}
.hero__panel {
  width: 100%;
  max-width: 460px;
  background: rgba(18, 62, 37, 0.65);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-lg);
}
.hero__panel-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}
.hero__panel-icon {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 215, 0, 0.15);
  border-radius: 50%;
  font-size: 1.2rem;
  color: var(--accent-gold);
}
.hero__panel-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-white);
}
.hero__panel-sub {
  font-size: 0.78rem;
  color: var(--text-muted);
}
.hero__eligibility {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
}
.hero__eligibility-item {
  font-size: 0.82rem;
  color: var(--text-pale);
  display: flex;
  align-items: center;
  gap: 6px;
}
.hero__eligibility-item::before {
  content: '✓';
  color: var(--accent-gold);
  font-weight: 700;
  font-size: 0.9rem;
}
.hero__apply-btn {
  width: 100%;
  padding: 14px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-dark);
  background: var(--accent-gold);
  border-radius: var(--radius-md);
  transition: all var(--transition);
  box-shadow: var(--shadow-gold);
}
.hero__apply-btn:hover {
  background: var(--accent-gold-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(255, 215, 0, 0.35);
}
/* ========== Three Selling Points ========== */
.selling-points__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.selling-point__card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  transition: all var(--transition);
}
.selling-point__card:hover {
  border-color: var(--border-gold);
  transform: translateY(-4px);
  box-shadow: var(--shadow-gold);
}
.selling-point__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 215, 0, 0.12);
  border-radius: var(--radius-md);
  font-size: 1.3rem;
  margin-bottom: 16px;
  color: var(--accent-gold);
}
.selling-point__title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 10px;
}
.selling-point__desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
}
/* ========== Horizontal Track ========== */
.track__wrapper {
  overflow-x: auto;
  display: flex;
  gap: 18px;
  padding-bottom: 16px;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}
.track__wrapper::-webkit-scrollbar { height: 6px; }
.track__wrapper::-webkit-scrollbar-track { background: rgba(255, 255, 255, 0.05); border-radius: 4px; }
.track__wrapper::-webkit-scrollbar-thumb { background: var(--border-gold); border-radius: 4px; }
.track__card {
  flex: 0 0 260px;
  scroll-snap-align: start;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition);
}
.track__card:hover {
  border-color: var(--border-gold);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.track__card-img {
  position: relative;
  height: 150px;
  overflow: hidden;
}
.track__card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}
.track__card:hover .track__card-img img { transform: scale(1.06); }
.track__tag {
  position: absolute;
  top: 10px;
  left: 10px;
  padding: 4px 10px;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  background: var(--accent-red);
  color: #fff;
  border-radius: 50px;
}
.track__tag--gold {
  background: var(--accent-gold);
  color: var(--text-dark);
}
.track__card-body {
  padding: 16px;
}
.track__card-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 6px;
  line-height: 1.4;
}
.track__card-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.5;
}
/* ========== Hot Recommendations ========== */
.hot-rec__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.hot-rec__card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition);
}
.hot-rec__card:hover {
  border-color: var(--border-gold);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}
.hot-rec__img {
  height: 180px;
  overflow: hidden;
  position: relative;
}
.hot-rec__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hot-rec__img::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 60%;
  background: linear-gradient(to top, rgba(18, 62, 37, 0.9), transparent);
}
.hot-rec__body {
  padding: 20px;
}
.hot-rec__title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 8px;
  line-height: 1.4;
}
.hot-rec__desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.55;
  margin-bottom: 14px;
}
.hot-rec__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-muted);
}
.hot-rec__tag {
  padding: 4px 10px;
  border-radius: 50px;
  font-size: 0.7rem;
  font-weight: 600;
  background: rgba(255, 215, 0, 0.15);
  color: var(--accent-gold);
}
/* ========== Category Link Cards ========== */
.cat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.cat-card {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  transition: all var(--transition);
  aspect-ratio: 4/3;
}
.cat-card:hover {
  border-color: var(--border-gold);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}
.cat-card__img {
  position: absolute;
  inset: 0;
}
.cat-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.cat-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 46, 28, 0.92) 0%, rgba(10, 46, 28, 0.4) 50%, transparent 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 20px;
}
.cat-card__title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 6px;
}
.cat-card__desc {
  font-size: 0.8rem;
  color: var(--text-pale);
  line-height: 1.5;
}
/* ========== News / CMS ========== */
.news__layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 32px;
}
.news__list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.news__item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}
.news__item:hover {
  border-color: var(--border-gold);
  background: rgba(255, 215, 0, 0.05);
  transform: translateX(4px);
}
.news__item-icon {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 215, 0, 0.1);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  color: var(--accent-gold);
}
.news__item-body {
  flex: 1;
  min-width: 0;
}
.news__item-title {
  font-size: 0.94rem;
  font-weight: 600;
  color: var(--text-white);
  margin-bottom: 4px;
  line-height: 1.4;
  transition: color var(--transition);
}
.news__item-title:hover { color: var(--accent-gold); }
.news__item-meta {
  display: flex;
  gap: 14px;
  font-size: 0.72rem;
  color: var(--text-muted);
}
.news__item-excerpt {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-top: 6px;
}
.news__empty {
  padding: 40px;
  text-align: center;
  background: var(--bg-card);
  border: 1px dashed var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.92rem;
}
.news__recommend {
  background: var(--bg-dark-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px;
}
.news__recommend-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--accent-gold);
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-subtle);
}
.news__recommend-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border-subtle);
  transition: all var(--transition);
}
.news__recommend-item:last-child { border-bottom: none; }
.news__recommend-item:hover {
  padding-left: 6px;
}
.news__recommend-item-num {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 215, 0, 0.12);
  border-radius: 50%;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent-gold);
}
.news__recommend-item-text {
  font-size: 0.85rem;
  color: var(--text-pale);
  line-height: 1.45;
}
/* ========== Vertical Cards ========== */
.vertical-cards__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.vertical-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition);
}
.vertical-card:hover {
  border-color: var(--border-gold);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.vertical-card__img {
  height: 200px;
  overflow: hidden;
}
.vertical-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}
.vertical-card:hover .vertical-card__img img { transform: scale(1.05); }
.vertical-card__body {
  padding: 16px;
}
.vertical-card__title {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 6px;
  line-height: 1.4;
}
.vertical-card__desc {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 12px;
}
.vertical-card__cta {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent-gold);
  transition: all var(--transition);
}
.vertical-card__cta:hover { color: var(--accent-gold-hover); gap: 8px; }
/* ========== Plan Comparison ========== */
.plan-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
}
.plan-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px 26px;
  transition: all var(--transition);
  position: relative;
}
.plan-card:hover {
  border-color: var(--border-gold);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}
.plan-card--featured {
  border-color: var(--accent-gold);
  box-shadow: var(--shadow-gold);
}
.plan-card--featured::before {
  content: 'Phổ Biến Nhất';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  padding: 4px 16px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: var(--accent-gold);
  color: var(--text-dark);
  border-radius: 50px;
}
.plan-card__name {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 10px;
}
.plan-card__price {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent-gold);
  line-height: 1.1;
  margin-bottom: 4px;
}
.plan-card__price-note {
  font-size: 0.76rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}
.plan-card__features {
  list-style: none;
  margin-bottom: 26px;
}
.plan-card__features li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 7px 0;
  font-size: 0.86rem;
  color: var(--text-pale);
  line-height: 1.45;
}
.plan-card__features li::before {
  content: '✓';
  color: var(--accent-gold);
  font-weight: 700;
  flex-shrink: 0;
  font-size: 0.85rem;
}
.plan-card__btn {
  width: 100%;
  padding: 12px;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-dark);
  background: var(--accent-gold);
  border-radius: var(--radius-md);
  transition: all var(--transition);
}
.plan-card__btn:hover {
  background: var(--accent-gold-hover);
  box-shadow: var(--shadow-gold);
}
/* ========== FAQ ========== */
.faq__list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 760px;
  margin: 0 auto;
}
.faq__item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition);
}
.faq__item:hover {
  border-color: var(--border-gold);
}
.faq__question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 22px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-white);
  text-align: left;
  transition: all var(--transition);
  gap: 12px;
}
.faq__question:hover {
  color: var(--accent-gold);
}
.faq__icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-gold);
  border-radius: 50%;
  color: var(--accent-gold);
  font-size: 0.8rem;
  transition: all var(--transition);
}
.faq__item.open .faq__icon {
  transform: rotate(45deg);
  background: rgba(255, 215, 0, 0.12);
}
.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}
.faq__answer-inner {
  padding: 0 22px 20px;
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.65;
}
.faq__item.open .faq__answer {
  max-height: 300px;
}
/* ========== CTA Section ========== */
.cta-section {
  background-image: linear-gradient(rgba(10, 46, 28, 0.88), rgba(10, 46, 28, 0.92)), url('/assets/images/backpic/back-2.jpg');
  background-size: cover;
  background-position: center;
  padding: 68px 0;
  text-align: center;
}
.cta-section__inner {
  max-width: 620px;
  margin: 0 auto;
}
.cta-section__title {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 16px;
  line-height: 1.3;
}
.cta-section__desc {
  font-size: 0.95rem;
  color: var(--text-pale);
  line-height: 1.6;
  margin-bottom: 28px;
}
.cta-section__form {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
}
.cta-section__input {
  flex: 1;
  min-width: 260px;
  padding: 14px 18px;
  font-size: 0.92rem;
  color: var(--text-white);
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: all var(--transition);
}
.cta-section__input::placeholder {
  color: var(--text-muted);
}
.cta-section__input:focus {
  border-color: var(--accent-gold);
  background: rgba(255, 255, 255, 0.1);
  outline: none;
  box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.15);
}
/* ========== Footer ========== */
.footer {
  background: #071F12;
  border-top: 1px solid var(--border-gold);
  padding: 48px 0 24px;
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 36px;
}
.footer__brand {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--accent-gold);
  margin-bottom: 10px;
}
.footer__brand-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.55;
  max-width: 320px;
}
.footer__col-title {
  font-size: 0.86rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-pale);
  margin-bottom: 14px;
}
.footer__links li {
  margin-bottom: 8px;
}
.footer__links a {
  font-size: 0.82rem;
  color: var(--text-muted);
  transition: all var(--transition);
}
.footer__links a:hover {
  color: var(--accent-gold);
}
.footer__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 24px;
}
.footer__badge {
  padding: 8px 16px;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-pale);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-gold);
  border-radius: 50px;
}
.footer__badge--red {
  background: rgba(211, 47, 47, 0.15);
  border-color: rgba(211, 47, 47, 0.5);
  color: #FF6B6B;
}
.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
  padding-top: 20px;
  border-top: 1px solid rgba(209, 242, 235, 0.08);
}
.footer__copyright {
  font-size: 0.78rem;
  color: var(--text-muted);
}
.footer__copyright a {
  color: var(--accent-gold);
  font-weight: 500;
}
.footer__license {
  font-size: 0.72rem;
  color: var(--text-muted);
  line-height: 1.5;
}
/* ========== FAB ========== */
.fab {
  position: fixed;
  left: 16px;
  bottom: 96px;
  z-index: 50;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #0B2415;
  border: 2px solid var(--accent-gold);
  border-radius: 50%;
  box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
  transition: all var(--transition);
  opacity: 0.7;
  animation: fab-float 3s ease-in-out infinite;
}
.fab:hover {
  opacity: 1;
  transform: scale(1.1);
  box-shadow: 0 6px 28px rgba(255, 215, 0, 0.45);
}
.fab:active {
  transform: scale(0.95);
  box-shadow: 0 2px 8px rgba(255, 215, 0, 0.2);
}
.fab__icon {
  font-size: 1.5rem;
  color: var(--accent-gold);
  transition: transform var(--transition);
  position: relative;
}
.fab:hover .fab__icon {
  transform: rotate(360deg);
}
.fab__dot {
  position: absolute;
  top: -2px;
  right: -2px;
  width: 12px;
  height: 12px;
  background: #FF0040;
  border: 2px solid #0B2415;
  border-radius: 50%;
  animation: fab-blink 1.8s ease-in-out infinite;
}
@keyframes fab-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
@keyframes fab-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.25; }
}
/* ========== Responsive ========== */
@media (max-width: 1024px) {
  .hero__inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .hero__visual {
    max-width: 460px;
    margin: 0 auto;
  }
  .selling-points__grid,
  .hot-rec__grid,
  .cat-grid,
  .plan-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .vertical-cards__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .news__layout {
    grid-template-columns: 1fr;
  }
  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }
}
@media (max-width: 768px) {
  .header__toggle {
    display: flex;
  }
  .header__nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(10, 46, 28, 0.98);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--border-gold);
    padding: 16px 24px;
    gap: 4px;
    transform: translateY(-110%);
    transition: transform var(--transition);
    z-index: 999;
  }
  .header__nav.open {
    transform: translateY(0);
  }
  .header__nav-link {
    width: 100%;
    padding: 12px 16px;
    text-align: left;
  }
  .header__auth {
    gap: 6px;
  }
  .btn--ghost {
    padding: 8px 12px;
    font-size: 0.75rem;
  }
  .btn--primary {
    padding: 8px 14px;
    font-size: 0.75rem;
  }
  .hero {
    background-attachment: scroll;
    padding: calc(var(--header-height) + 30px) 0 50px;
  }
  .hero__title {
    font-size: clamp(1.4rem, 5vw, 2rem);
  }
  .hero__desc {
    font-size: 0.92rem;
  }
  .hero__stats {
    gap: 18px;
  }
  .hero__stat-num {
    font-size: 1.4rem;
  }
  .section {
    padding: 48px 0;
  }
  .selling-points__grid,
  .hot-rec__grid,
  .cat-grid,
  .plan-grid,
  .vertical-cards__grid {
    grid-template-columns: 1fr;
  }
  .vertical-cards__grid {
    grid-template-columns: 1fr 1fr;
    gap: 14px;
  }
  .vertical-card__img {
    height: 150px;
  }
  .footer__grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .footer__bottom {
    flex-direction: column;
    text-align: center;
  }
  .fab {
    width: 50px;
    height: 50px;
    left: 12px;
    bottom: 80px;
  }
  .fab__icon {
    font-size: 1.3rem;
  }
}
@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }
  .header__logo a {
    font-size: 0.95rem;
  }
  .header__logo a span {
    font-size: 0.55rem;
  }
  .btn--ghost {
    padding: 6px 10px;
    font-size: 0.68rem;
  }
  .btn--primary {
    padding: 6px 12px;
    font-size: 0.68rem;
  }
  .hero__cta-group {
    flex-direction: column;
  }
  .btn--lg,
  .btn--outline-gold {
    padding: 14px 24px;
    font-size: 0.85rem;
    width: 100%;
    text-align: center;
    justify-content: center;
  }
  .vertical-cards__grid {
    grid-template-columns: 1fr;
  }
  .track__card {
    flex: 0 0 220px;
  }
  .track__card-img {
    height: 130px;
  }
  .cta-section__form {
    flex-direction: column;
  }
  .cta-section__input {
    min-width: auto;
    width: 100%;
  }
}

/* roulang page: category1 */
:root {
            --bg-primary: #0A2E1C;
            --bg-secondary: #123E25;
            --bg-tertiary: #0D3520;
            --bg-card: #143E28;
            --bg-dark-card: #0B2415;
            --accent-gold: #FFD700;
            --accent-gold-hover: #FFC300;
            --accent-red: #D32F2F;
            --accent-red-hover: #C62828;
            --text-white: #FFFFFF;
            --text-pale: #D1F2EB;
            --text-muted: #A8CFC0;
            --text-dark: #1A1A1A;
            --border-gold: rgba(255, 215, 0, 0.35);
            --border-subtle: rgba(209, 242, 235, 0.15);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.18);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.25);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.22);
            --shadow-red: 0 4px 16px rgba(211, 47, 47, 0.25);
            --font-family: 'Be Vietnam Pro', 'Segoe UI', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
            --container-max: 1200px;
            --header-height: 72px;
            --transition: 0.28s ease;
            --transition-fast: 0.18s ease;
            --transition-slow: 0.45s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            background: var(--bg-primary);
            color: var(--text-white);
            line-height: 1.6;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

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

        input,
        select,
        textarea {
            font-family: inherit;
            font-size: 16px;
        }

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

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: 68px 0;
            position: relative;
        }

        .section--alt {
            background: var(--bg-secondary);
        }

        .section--dark {
            background: var(--bg-tertiary);
        }

        .section--gradient {
            background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-tertiary) 50%, var(--bg-primary) 100%);
        }

        .section__label {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.12em;
            text-transform: uppercase;
            color: var(--accent-gold);
            margin-bottom: 12px;
        }

        .section__title {
            font-size: clamp(1.6rem, 3vw, 2.4rem);
            font-weight: 700;
            line-height: 1.28;
            color: var(--text-white);
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }

        .section__desc {
            font-size: 1rem;
            color: var(--text-muted);
            line-height: 1.65;
            max-width: 680px;
            margin-bottom: 36px;
        }

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

        .text-pale {
            color: var(--text-pale);
        }

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

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

        /* ========== Header ========== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(10, 46, 28, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-gold);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
        }

        .header__inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 16px;
        }

        .header__logo {
            flex-shrink: 0;
        }

        .header__logo a {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--accent-gold);
            letter-spacing: -0.01em;
            line-height: 1.2;
            display: flex;
            flex-direction: column;
        }

        .header__logo a span {
            font-size: 0.66rem;
            font-weight: 400;
            color: var(--text-pale);
            letter-spacing: 0.08em;
            text-transform: uppercase;
        }

        .header__nav {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
            justify-content: center;
        }

        .header__nav-link {
            display: block;
            padding: 10px 16px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-pale);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }

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

        .header__nav-link.active {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.12);
        }

        .header__nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 6px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--accent-gold);
            border-radius: 2px;
        }

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

        .btn--ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 18px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-pale);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
        }

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

        .btn--primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 20px;
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--text-dark);
            background: var(--accent-gold);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
            box-shadow: var(--shadow-gold);
        }

        .btn--primary:hover {
            background: var(--accent-gold-hover);
            transform: translateY(-1px);
            box-shadow: 0 6px 24px rgba(255, 215, 0, 0.3);
        }

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

        .header__toggle {
            display: none;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            color: var(--text-pale);
            font-size: 1.3rem;
            transition: all var(--transition);
        }

        .header__toggle:hover {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.1);
        }

        /* ========== Hero Coupon Wall ========== */
        .hero-coupon {
            min-height: 100vh;
            display: flex;
            align-items: center;
            padding-top: var(--header-height);
            background-image: linear-gradient(rgba(10, 46, 28, 0.82), rgba(10, 46, 28, 0.88)), url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            position: relative;
            overflow: hidden;
        }

        .hero-coupon::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--accent-gold), transparent);
        }

        .hero-coupon__inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            padding: 50px 0;
            position: relative;
            z-index: 2;
        }

        .hero-coupon__content h1 {
            font-size: clamp(1.8rem, 4vw, 3rem);
            font-weight: 700;
            line-height: 1.22;
            letter-spacing: -0.01em;
            color: var(--text-white);
            margin-bottom: 18px;
        }

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

        .hero-coupon__content p {
            font-size: 1rem;
            color: var(--text-muted);
            line-height: 1.65;
            max-width: 540px;
            margin-bottom: 28px;
        }

        .hero-coupon__actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        .hero-coupon__badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 24px;
        }

        .hero-coupon__badge {
            display: inline-block;
            padding: 6px 14px;
            font-size: 0.72rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            border-radius: 20px;
            border: 1px solid var(--border-gold);
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.06);
        }

        .hero-coupon__badge--red {
            border-color: rgba(211, 47, 47, 0.5);
            color: #FF6B6B;
            background: rgba(211, 47, 47, 0.08);
        }

        .coupon-wall {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .coupon-card {
            background: var(--bg-dark-card);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 22px 24px;
            display: flex;
            align-items: center;
            gap: 20px;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }

        .coupon-card::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(ellipse at 30% 20%, rgba(255, 215, 0, 0.08) 0%, transparent 60%);
            pointer-events: none;
        }

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

        .coupon-card--featured {
            background: linear-gradient(135deg, var(--bg-card), var(--bg-dark-card));
            border-width: 2px;
            border-color: var(--accent-gold);
            box-shadow: var(--shadow-gold);
            transform: scale(1.02);
        }

        .coupon-card--featured:hover {
            transform: scale(1.03) translateY(-3px);
            box-shadow: 0 8px 36px rgba(255, 215, 0, 0.35);
        }

        .coupon-card__icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-md);
            background: rgba(255, 215, 0, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 1.5rem;
            color: var(--accent-gold);
            position: relative;
            z-index: 1;
        }

        .coupon-card__icon svg {
            width: 28px;
            height: 28px;
            fill: var(--accent-gold);
        }

        .coupon-card__body {
            flex: 1;
            position: relative;
            z-index: 1;
        }

        .coupon-card__body h3 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 4px;
        }

        .coupon-card__body p {
            font-size: 0.82rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        .coupon-card__action {
            position: relative;
            z-index: 1;
            flex-shrink: 0;
        }

        .coupon-card__action .btn--primary {
            font-size: 0.78rem;
            padding: 9px 16px;
        }

        .coupon-card__tag {
            position: absolute;
            top: 16px;
            right: 20px;
            z-index: 2;
            font-size: 0.68rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            padding: 4px 10px;
            border-radius: 4px;
            background: var(--accent-red);
            color: #FFFFFF;
        }

        .coupon-card--featured .coupon-card__tag {
            background: var(--accent-gold);
            color: var(--text-dark);
        }

        /* ========== Stats Dashboard ========== */
        .stats-dashboard {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-bottom: 44px;
        }

        .stat-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 22px 20px;
            text-align: center;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }

        .stat-card::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 24px;
            right: 24px;
            height: 2px;
            border-radius: 2px;
            background: linear-gradient(90deg, transparent, var(--accent-gold), transparent);
            opacity: 0;
            transition: opacity var(--transition);
        }

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

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

        .stat-card__number {
            font-size: 2rem;
            font-weight: 700;
            color: var(--accent-gold);
            line-height: 1.1;
            margin-bottom: 6px;
            letter-spacing: -0.02em;
        }

        .stat-card__label {
            font-size: 0.82rem;
            font-weight: 500;
            color: var(--text-muted);
            letter-spacing: 0.04em;
        }

        /* ========== Strategy Matrix ========== */
        .strategy-matrix {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }

        .strategy-card {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 26px 22px;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }

        .strategy-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-gold), transparent);
            opacity: 0;
            transition: opacity var(--transition);
        }

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

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

        .strategy-card__icon {
            width: 46px;
            height: 46px;
            border-radius: var(--radius-sm);
            background: rgba(255, 215, 0, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 14px;
            color: var(--accent-gold);
            font-size: 1.3rem;
        }

        .strategy-card__icon svg {
            width: 24px;
            height: 24px;
            fill: var(--accent-gold);
        }

        .strategy-card h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 8px;
            line-height: 1.3;
        }

        .strategy-card p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 14px;
        }

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

        .strategy-card__points li {
            font-size: 0.8rem;
            color: var(--text-pale);
            padding-left: 18px;
            position: relative;
            margin-bottom: 6px;
            line-height: 1.5;
        }

        .strategy-card__points li::before {
            content: '→';
            position: absolute;
            left: 0;
            color: var(--accent-gold);
            font-weight: 600;
        }

        /* ========== Comparison Table ========== */
        .comparison-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }

        .comparison-card {
            background: var(--bg-dark-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            transition: all var(--transition);
        }

        .comparison-card--win {
            border-color: var(--border-gold);
            background: linear-gradient(135deg, var(--bg-card), var(--bg-dark-card));
            box-shadow: var(--shadow-gold);
        }

        .comparison-card--lose {
            border-color: rgba(211, 47, 47, 0.35);
        }

        .comparison-card__header {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 18px;
        }

        .comparison-card__header h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--text-white);
        }

        .comparison-card__badge {
            display: inline-block;
            font-size: 0.68rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            padding: 4px 10px;
            border-radius: 4px;
        }

        .comparison-card__badge--win {
            background: rgba(255, 215, 0, 0.15);
            color: var(--accent-gold);
            border: 1px solid var(--border-gold);
        }

        .comparison-card__badge--lose {
            background: rgba(211, 47, 47, 0.15);
            color: #FF6B6B;
            border: 1px solid rgba(211, 47, 47, 0.4);
        }

        .comparison-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .comparison-card ul li {
            font-size: 0.88rem;
            line-height: 1.55;
            padding-left: 22px;
            position: relative;
            margin-bottom: 10px;
            color: var(--text-pale);
        }

        .comparison-card ul li::before {
            content: '✓';
            position: absolute;
            left: 0;
            font-weight: 700;
            font-size: 0.9rem;
        }

        .comparison-card--win ul li::before {
            color: var(--accent-gold);
        }

        .comparison-card--lose ul li::before {
            content: '✗';
            color: #FF6B6B;
        }

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

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            transition: all var(--transition);
            overflow: hidden;
        }

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

        .faq-item__question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            cursor: pointer;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-white);
            gap: 16px;
            width: 100%;
            text-align: left;
            transition: all var(--transition);
        }

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

        .faq-item__question span {
            flex: 1;
        }

        .faq-item__icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: rgba(255, 215, 0, 0.1);
            color: var(--accent-gold);
            font-size: 1rem;
            font-weight: 600;
            flex-shrink: 0;
            transition: transform var(--transition);
        }

        .faq-item.is-open .faq-item__icon {
            transform: rotate(45deg);
        }

        .faq-item__answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition);
            padding: 0 20px;
        }

        .faq-item.is-open .faq-item__answer {
            max-height: 280px;
            padding-bottom: 18px;
        }

        .faq-item__answer p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.65;
        }

        /* ========== CTA Form ========== */
        .cta-form-block {
            background: linear-gradient(135deg, var(--bg-dark-card), var(--bg-tertiary));
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-xl);
            padding: 50px 40px;
            position: relative;
            overflow: hidden;
        }

        .cta-form-block::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 215, 0, 0.06) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-form-block__inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .cta-form-block__content h2 {
            font-size: clamp(1.4rem, 2.5vw, 1.9rem);
            font-weight: 700;
            color: var(--text-white);
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .cta-form-block__content p {
            font-size: 0.94rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 20px;
        }

        .cta-form-block__benefits {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .cta-form-block__benefits li {
            font-size: 0.86rem;
            color: var(--text-pale);
            padding-left: 24px;
            position: relative;
            margin-bottom: 8px;
            line-height: 1.5;
        }

        .cta-form-block__benefits li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--accent-gold);
            font-weight: 700;
        }

        .cta-form {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .cta-form input {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-sm);
            padding: 14px 18px;
            color: var(--text-white);
            font-size: 0.9rem;
            width: 100%;
            transition: all var(--transition);
        }

        .cta-form input:focus {
            border-color: var(--accent-gold);
            background: rgba(255, 255, 255, 0.1);
            outline: none;
            box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.1);
        }

        .cta-form input::placeholder {
            color: var(--text-muted);
        }

        .cta-form .btn--primary {
            width: 100%;
            padding: 14px 24px;
            font-size: 0.95rem;
            font-weight: 700;
            border-radius: var(--radius-sm);
        }

        .cta-form__note {
            font-size: 0.75rem;
            color: var(--text-muted);
            text-align: center;
            margin-top: 4px;
            line-height: 1.4;
        }

        /* ========== Footer ========== */
        .footer {
            background: var(--bg-dark-card);
            border-top: 1px solid var(--border-gold);
            padding: 48px 0 28px;
        }

        .footer__grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            margin-bottom: 32px;
        }

        .footer__brand {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 10px;
        }

        .footer__brand-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
            max-width: 300px;
        }

        .footer__col-title {
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent-gold);
            margin-bottom: 14px;
        }

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

        .footer__links li {
            margin-bottom: 8px;
        }

        .footer__links a {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: color var(--transition);
        }

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

        .footer__badges {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            padding: 20px 0;
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
            margin-bottom: 20px;
        }

        .footer__badge {
            display: inline-block;
            padding: 6px 14px;
            font-size: 0.72rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            border-radius: 20px;
            border: 1px solid var(--border-gold);
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.06);
        }

        .footer__badge--red {
            border-color: rgba(211, 47, 47, 0.5);
            color: #FF6B6B;
            background: rgba(211, 47, 47, 0.1);
        }

        .footer__bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
        }

        .footer__copyright {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        .footer__copyright a {
            color: var(--text-pale);
        }

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

        .footer__license {
            font-size: 0.78rem;
            color: var(--text-muted);
            text-align: right;
        }

        /* ========== FAB ========== */
        .fab {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 900;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--bg-dark-card);
            border: 2px solid var(--accent-gold);
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            opacity: 0.7;
            transition: all var(--transition);
            animation: fabFloat 4s ease-in-out infinite;
            position: fixed;
        }

        .fab:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 6px 28px rgba(255, 215, 0, 0.45);
        }

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

        .fab svg {
            width: 28px;
            height: 28px;
            fill: var(--accent-gold);
            transition: transform var(--transition);
        }

        .fab:hover svg {
            transform: rotate(360deg);
        }

        .fab__notification {
            position: absolute;
            top: 2px;
            right: 2px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--accent-red);
            animation: fabBlink 2s ease-in-out infinite;
        }

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

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

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .hero-coupon__inner {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .coupon-wall {
                max-width: 540px;
                margin: 0 auto;
            }

            .strategy-matrix {
                grid-template-columns: repeat(2, 1fr);
            }

            .stats-dashboard {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer__grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .cta-form-block__inner {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            .header__inner {
                flex-wrap: nowrap;
            }

            .header__nav {
                display: none;
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(10, 46, 28, 0.97);
                backdrop-filter: blur(18px);
                -webkit-backdrop-filter: blur(18px);
                flex-direction: column;
                gap: 4px;
                padding: 16px 24px;
                border-bottom: 1px solid var(--border-gold);
                box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
                z-index: 999;
            }

            .header__nav.is-open {
                display: flex;
            }

            .header__nav-link {
                width: 100%;
                text-align: left;
                padding: 14px 16px;
                font-size: 0.95rem;
            }

            .header__nav-link.active::after {
                bottom: auto;
                left: 16px;
                transform: none;
                width: 4px;
                height: 100%;
                top: 0;
                border-radius: 0;
            }

            .header__auth {
                gap: 6px;
            }

            .header__auth .btn--ghost,
            .header__auth .btn--primary {
                padding: 8px 14px;
                font-size: 0.78rem;
            }

            .header__toggle {
                display: flex;
            }

            .section {
                padding: 48px 0;
            }

            .hero-coupon {
                padding-top: var(--header-height);
            }

            .hero-coupon__content h1 {
                font-size: clamp(1.5rem, 5vw, 2rem);
            }

            .coupon-card {
                padding: 18px 16px;
                flex-wrap: wrap;
                gap: 14px;
            }

            .coupon-card__body h3 {
                font-size: 0.95rem;
            }

            .strategy-matrix {
                grid-template-columns: 1fr;
            }

            .comparison-block {
                grid-template-columns: 1fr;
            }

            .stats-dashboard {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }

            .stat-card {
                padding: 18px 14px;
            }

            .stat-card__number {
                font-size: 1.5rem;
            }

            .footer__grid {
                grid-template-columns: 1fr;
                gap: 22px;
            }

            .footer__bottom {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }

            .footer__license {
                text-align: center;
            }

            .cta-form-block {
                padding: 32px 22px;
            }

            .fab {
                width: 48px;
                height: 48px;
                left: 12px;
                bottom: 76px;
            }

            .fab svg {
                width: 24px;
                height: 24px;
            }
        }

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

            .header__logo a {
                font-size: 1rem;
            }

            .header__logo a span {
                font-size: 0.58rem;
            }

            .header__auth .btn--ghost {
                display: none;
            }

            .header__auth .btn--primary {
                padding: 8px 12px;
                font-size: 0.72rem;
            }

            .hero-coupon__badge-row {
                gap: 8px;
            }

            .hero-coupon__badge {
                font-size: 0.65rem;
                padding: 5px 10px;
            }

            .coupon-card {
                flex-direction: column;
                align-items: flex-start;
            }

            .coupon-card__action {
                width: 100%;
            }

            .coupon-card__action .btn--primary {
                width: 100%;
                justify-content: center;
            }

            .coupon-card__tag {
                top: 12px;
                right: 14px;
                font-size: 0.6rem;
                padding: 3px 8px;
            }

            .stats-dashboard {
                grid-template-columns: 1fr;
            }

            .section__title {
                font-size: 1.4rem;
            }

            .faq-item__question {
                font-size: 0.86rem;
                padding: 14px 16px;
            }

            .faq-item__answer {
                padding: 0 16px;
            }

            .faq-item.is-open .faq-item__answer {
                padding-bottom: 14px;
            }

            .cta-form-block {
                padding: 24px 16px;
            }

            .cta-form input {
                padding: 12px 16px;
                font-size: 0.85rem;
            }
        }

/* roulang page: article */
:root {
  --bg-primary: #0A2E1C;
  --bg-secondary: #123E25;
  --bg-tertiary: #0D3520;
  --bg-card: #143E28;
  --bg-dark-card: #0B2415;
  --accent-gold: #FFD700;
  --accent-gold-hover: #FFC300;
  --accent-red: #D32F2F;
  --accent-red-hover: #C62828;
  --text-white: #FFFFFF;
  --text-pale: #D1F2EB;
  --text-muted: #A8CFC0;
  --text-dark: #1A1A1A;
  --border-gold: rgba(255, 215, 0, 0.35);
  --border-subtle: rgba(209, 242, 235, 0.15);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.18);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.25);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.35);
  --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.22);
  --shadow-red: 0 4px 16px rgba(211, 47, 47, 0.25);
  --font-family: 'Be Vietnam Pro', 'Segoe UI', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --container-max: 1200px;
  --header-height: 72px;
  --transition: 0.28s ease;
  --transition-fast: 0.18s ease;
  --transition-slow: 0.45s ease;
}
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-family);
  background: var(--bg-primary);
  color: var(--text-white);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: color var(--transition); }
button { font-family: inherit; cursor: pointer; border: none; background: none; transition: all var(--transition-fast); }
input, select, textarea { font-family: inherit; font-size: 16px; }
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid var(--accent-gold);
  outline-offset: 2px;
  border-radius: 4px;
}
.container { width: 100%; max-width: var(--container-max); margin: 0 auto; padding: 0 24px; }
.section { padding: 68px 0; position: relative; }
.section--alt { background: var(--bg-secondary); }
.section--dark { background: var(--bg-tertiary); }
.section__label {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 12px;
}
.section__title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  line-height: 1.28;
  color: var(--text-white);
  margin-bottom: 14px;
  letter-spacing: -0.01em;
}
.section__desc {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.65;
  max-width: 640px;
  margin-bottom: 36px;
}
.text-gold { color: var(--accent-gold); }
.text-pale { color: var(--text-pale); }
.text-muted { color: var(--text-muted); }

/* Header / Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background: rgba(10, 46, 28, 0.92);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border-gold);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 16px;
}
.header__logo { flex-shrink: 0; }
.header__logo a {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--accent-gold);
  letter-spacing: -0.01em;
  line-height: 1.2;
  display: flex;
  flex-direction: column;
}
.header__logo a span {
  font-size: 0.66rem;
  font-weight: 400;
  color: var(--text-pale);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.header__nav {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  justify-content: center;
}
.header__nav-link {
  display: block;
  padding: 10px 16px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-pale);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  position: relative;
  white-space: nowrap;
}
.header__nav-link:hover {
  color: var(--accent-gold);
  background: rgba(255, 215, 0, 0.08);
}
.header__nav-link.active {
  color: var(--accent-gold);
  background: rgba(255, 215, 0, 0.12);
}
.header__nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  background: var(--accent-gold);
  border-radius: 2px;
}
.header__auth {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.btn--ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-pale);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  white-space: nowrap;
}
.btn--ghost:hover {
  color: var(--accent-gold);
  border-color: var(--border-gold);
  background: rgba(255, 215, 0, 0.06);
}
.btn--primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-dark);
  background: var(--accent-gold);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  white-space: nowrap;
  box-shadow: var(--shadow-gold);
}
.btn--primary:hover {
  background: var(--accent-gold-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(255, 215, 0, 0.3);
}
.btn--primary:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}
.header__toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--text-pale);
  font-size: 1.3rem;
  transition: all var(--transition);
}
.header__toggle:hover {
  color: var(--accent-gold);
  background: rgba(255, 215, 0, 0.1);
}

/* Article Hero */
.article-hero {
  padding-top: calc(var(--header-height) + 48px);
  padding-bottom: 48px;
  background: linear-gradient(165deg, var(--bg-tertiary) 0%, var(--bg-primary) 55%, var(--bg-secondary) 100%);
  position: relative;
  overflow: hidden;
}
.article-hero::before {
  content: '';
  position: absolute;
  top: -120px;
  right: -120px;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(255, 215, 0, 0.08) 0%, transparent 65%);
  border-radius: 50%;
  pointer-events: none;
}
.article-hero__inner {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 48px;
  align-items: center;
}
.article-hero__content { text-align: left; }
.article-hero__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}
.article-hero__category {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  background: rgba(255, 215, 0, 0.12);
  color: var(--accent-gold);
  font-size: 0.78rem;
  font-weight: 600;
  border-radius: 999px;
  border: 1px solid var(--border-gold);
}
.article-hero__date {
  font-size: 0.82rem;
  color: var(--text-muted);
}
.article-hero h1 {
  font-size: clamp(1.7rem, 3.4vw, 2.6rem);
  font-weight: 800;
  line-height: 1.25;
  color: var(--text-white);
  margin-bottom: 18px;
  letter-spacing: -0.01em;
}
.article-hero__excerpt {
  font-size: 1.05rem;
  color: var(--text-pale);
  line-height: 1.7;
  max-width: 680px;
  margin-bottom: 24px;
}
.article-hero__image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-gold);
  box-shadow: var(--shadow-lg);
}
.article-hero__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 260px;
}

/* Article Body */
.article-body-wrap {
  padding: 56px 0 48px;
  background: var(--bg-primary);
}
.article-body-wrap .container {
  max-width: 840px;
}
.article-body {
  font-size: 1.03rem;
  color: var(--text-pale);
  line-height: 1.7;
}
.article-body h1 { font-size: 1.65rem; font-weight: 700; color: var(--text-white); margin: 32px 0 14px; line-height: 1.3; }
.article-body h2 { font-size: 1.4rem; font-weight: 700; color: var(--text-white); margin: 28px 0 12px; line-height: 1.3; }
.article-body h3 { font-size: 1.15rem; font-weight: 600; color: var(--text-pale); margin: 24px 0 10px; line-height: 1.35; }
.article-body p { margin-bottom: 16px; }
.article-body a { color: var(--accent-gold); text-decoration: underline; text-decoration-color: rgba(255, 215, 0, 0.4); }
.article-body a:hover { text-decoration-color: var(--accent-gold); color: var(--accent-gold-hover); }
.article-body ul, .article-body ol { margin: 0 0 16px 24px; }
.article-body li { margin-bottom: 8px; }
.article-body blockquote {
  margin: 28px 0;
  padding: 20px 28px;
  background: var(--bg-dark-card);
  border-left: 4px solid var(--accent-gold);
  border-radius: var(--radius-md);
  color: var(--accent-gold);
  font-size: 1.05rem;
  font-weight: 500;
  font-style: italic;
  line-height: 1.6;
}
.article-body img {
  border-radius: var(--radius-md);
  margin: 24px 0;
  border: 1px solid var(--border-subtle);
}
.article-body table { width: 100%; border-collapse: collapse; margin: 24px 0; }
.article-body th, .article-body td { padding: 12px 16px; border: 1px solid var(--border-subtle); text-align: left; }
.article-body th { background: var(--bg-dark-card); color: var(--accent-gold); font-weight: 600; }
.article-body code { background: rgba(255, 215, 0, 0.08); padding: 2px 8px; border-radius: 4px; font-size: 0.9em; }

.article-not-found {
  text-align: left;
  padding: 48px 0;
}
.article-not-found h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 12px;
}
.article-not-found p {
  color: var(--text-muted);
  margin-bottom: 20px;
}
.article-not-found a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: var(--accent-gold);
  color: var(--text-dark);
  font-weight: 700;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}
.article-not-found a:hover {
  background: var(--accent-gold-hover);
  transform: translateY(-1px);
}

/* Pull Quote */
.pull-quote {
  margin: 40px 0;
  padding: 32px 36px;
  background: linear-gradient(135deg, rgba(255, 215, 0, 0.07) 0%, rgba(211, 47, 47, 0.05) 100%);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-lg);
  position: relative;
}
.pull-quote::before {
  content: '\201C';
  position: absolute;
  top: -18px;
  left: 24px;
  font-size: 4rem;
  color: var(--accent-gold);
  font-family: Georgia, serif;
  line-height: 1;
}
.pull-quote p {
  font-size: 1.15rem;
  color: var(--accent-gold);
  font-weight: 600;
  line-height: 1.6;
  margin: 8px 0 0;
  text-align: left;
}

/* Quick Stats */
.quick-stats {
  padding: 48px 0;
  background: var(--bg-secondary);
}
.quick-stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.quick-stat {
  background: var(--bg-dark-card);
  padding: 24px 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  text-align: left;
  transition: all var(--transition);
}
.quick-stat:hover {
  border-color: var(--border-gold);
  box-shadow: var(--shadow-gold);
  transform: translateY(-2px);
}
.quick-stat__number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent-gold);
  line-height: 1.1;
  margin-bottom: 6px;
}
.quick-stat__label {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Related Topics */
.related-topics {
  padding: 56px 0 64px;
  background: var(--bg-primary);
}
.related-topics__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.topic-card {
  background: var(--bg-dark-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}
.topic-card:hover {
  border-color: var(--border-gold);
  box-shadow: var(--shadow-gold);
  transform: translateY(-4px);
}
.topic-card__image {
  width: 100%;
  height: 180px;
  overflow: hidden;
}
.topic-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}
.topic-card:hover .topic-card__image img {
  transform: scale(1.05);
}
.topic-card__body {
  padding: 22px 24px 26px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.topic-card__title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 8px;
  line-height: 1.3;
}
.topic-card__desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
  flex: 1;
  margin-bottom: 16px;
}
.topic-card__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-gold);
  transition: all var(--transition);
}
.topic-card__link:hover {
  color: var(--accent-gold-hover);
  gap: 12px;
}

/* FAQ */
.faq {
  padding: 64px 0;
  background: var(--bg-secondary);
}
.faq__list {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.faq-item {
  background: var(--bg-dark-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  overflow: hidden;
  transition: all var(--transition);
}
.faq-item:hover {
  border-color: var(--border-gold);
}
.faq-item__question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 22px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-pale);
  text-align: left;
  transition: all var(--transition);
}
.faq-item__question:hover {
  color: var(--accent-gold);
}
.faq-item__question .fa-chevron-down {
  font-size: 0.85rem;
  color: var(--accent-gold);
  transition: transform var(--transition);
  flex-shrink: 0;
}
.faq-item.open .faq-item__question .fa-chevron-down {
  transform: rotate(180deg);
}
.faq-item__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  padding: 0 22px;
}
.faq-item.open .faq-item__answer {
  max-height: 300px;
  padding: 0 22px 20px;
}
.faq-item__answer p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin: 0;
  text-align: left;
}

/* CTA */
.cta {
  padding: 72px 0;
  background: linear-gradient(165deg, var(--bg-tertiary) 0%, var(--bg-primary) 45%, var(--bg-dark-card) 100%);
  position: relative;
  overflow: hidden;
}
.cta::after {
  content: '';
  position: absolute;
  bottom: -180px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(255, 215, 0, 0.06) 0%, transparent 65%);
  pointer-events: none;
}
.cta__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.cta__content { text-align: left; }
.cta__title {
  font-size: clamp(1.6rem, 2.8vw, 2.2rem);
  font-weight: 800;
  color: var(--text-white);
  line-height: 1.3;
  margin-bottom: 14px;
}
.cta__desc {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 26px;
  max-width: 520px;
}
.cta__features {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 26px;
}
.cta__feature {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  background: rgba(255, 215, 0, 0.08);
  border: 1px solid var(--border-gold);
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-pale);
}
.cta__feature i {
  color: var(--accent-gold);
  font-size: 0.75rem;
}
.cta__form {
  background: var(--bg-dark-card);
  padding: 32px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-gold);
  box-shadow: var(--shadow-lg);
  text-align: left;
}
.cta__form-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 6px;
}
.cta__form-subtitle {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}
.cta__form-group {
  margin-bottom: 14px;
}
.cta__form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-pale);
  margin-bottom: 6px;
}
.cta__form-group input,
.cta__form-group select {
  width: 100%;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-white);
  transition: all var(--transition);
}
.cta__form-group input::placeholder {
  color: var(--text-muted);
}
.cta__form-group input:focus,
.cta__form-group select:focus {
  border-color: var(--accent-gold);
  box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.1);
  outline: none;
}
.cta__form-group select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23FFD700' stroke-width='1.5' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
}
.cta__form-group select option {
  background: var(--bg-dark-card);
  color: var(--text-white);
}
.cta__submit {
  width: 100%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 24px;
  background: var(--accent-gold);
  color: var(--text-dark);
  font-size: 0.95rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  box-shadow: var(--shadow-gold);
}
.cta__submit:hover {
  background: var(--accent-gold-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(255, 215, 0, 0.32);
}
.cta__submit:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}
.cta__form-note {
  margin-top: 12px;
  font-size: 0.78rem;
  color: var(--text-muted);
  text-align: center;
}

/* Footer */
.footer {
  background: var(--bg-dark-card);
  padding: 56px 0 28px;
  border-top: 1px solid var(--border-gold);
}
.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 32px;
}
.footer__brand {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--accent-gold);
  margin-bottom: 10px;
}
.footer__brand-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.65;
  max-width: 340px;
}
.footer__col-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 14px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.footer__links {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer__links li {
  margin-bottom: 10px;
}
.footer__links a {
  font-size: 0.88rem;
  color: var(--text-muted);
  transition: all var(--transition);
}
.footer__links a:hover {
  color: var(--accent-gold);
  padding-left: 4px;
}
.footer__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 20px 0;
  border-top: 1px solid var(--border-subtle);
  margin-bottom: 20px;
}
.footer__badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-pale);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: 999px;
}
.footer__badge--red {
  color: var(--accent-red);
  border-color: rgba(211, 47, 47, 0.5);
  background: rgba(211, 47, 47, 0.1);
}
.footer__bottom {
  padding-top: 20px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
}
.footer__copyright {
  font-size: 0.8rem;
  color: var(--text-muted);
}
.footer__copyright a {
  color: var(--text-pale);
}
.footer__copyright a:hover {
  color: var(--accent-gold);
}
.footer__license {
  font-size: 0.78rem;
  color: var(--text-muted);
  text-align: right;
}

/* FAB */
.fab {
  position: fixed;
  left: 16px;
  bottom: 96px;
  z-index: 50;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(145deg, var(--bg-dark-card), var(--bg-tertiary));
  border: 2px solid var(--accent-gold);
  box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-gold);
  font-size: 1.3rem;
  opacity: 0.7;
  transition: all var(--transition);
  animation: fabBreathe 3s ease-in-out infinite;
  cursor: pointer;
}
.fab::after {
  content: '';
  position: absolute;
  top: -3px;
  right: -3px;
  width: 14px;
  height: 14px;
  background: #E53935;
  border-radius: 50%;
  border: 2px solid var(--bg-dark-card);
  animation: fabBlink 1.6s ease-in-out infinite;
}
.fab:hover {
  opacity: 1;
  transform: scale(1.12);
  box-shadow: 0 6px 28px rgba(255, 215, 0, 0.4);
}
.fab:active {
  transform: scale(0.95) translateY(2px);
  box-shadow: var(--shadow-sm);
}
@keyframes fabBreathe {
  0%, 100% { transform: translateY(0); opacity: 0.7; }
  50% { transform: translateY(-4px); opacity: 1; }
}
@keyframes fabBlink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* Responsive */
@media (max-width: 1024px) {
  .article-hero__inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .article-hero__image {
    max-width: 480px;
  }
  .quick-stats__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .related-topics__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .cta__inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer__grid {
    grid-template-columns: 2fr 1fr 1fr;
    gap: 28px;
  }
}

@media (max-width: 768px) {
  :root { --header-height: 64px; }
  .header__nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: rgba(10, 46, 28, 0.97);
    backdrop-filter: blur(18px);
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding: 16px 24px;
    transform: translateY(-120%);
    transition: transform var(--transition);
    border-bottom: 1px solid var(--border-gold);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
    z-index: 999;
  }
  .header__nav.open {
    transform: translateY(0);
  }
  .header__nav-link {
    width: 100%;
    padding: 12px 16px;
    font-size: 0.95rem;
  }
  .header__nav-link.active::after {
    left: 16px;
    transform: none;
    width: 18px;
    bottom: 4px;
  }
  .header__toggle {
    display: flex;
  }
  .header__auth .btn--ghost,
  .header__auth .btn--primary {
    display: none;
  }
  .section { padding: 48px 0; }
  .article-hero { padding-top: calc(var(--header-height) + 28px); padding-bottom: 32px; }
  .article-hero h1 { font-size: 1.5rem; }
  .article-hero__excerpt { font-size: 0.95rem; }
  .article-body-wrap { padding: 36px 0 32px; }
  .quick-stats { padding: 36px 0; }
  .quick-stats__grid { gap: 14px; }
  .quick-stat { padding: 20px 16px; }
  .quick-stat__number { font-size: 1.5rem; }
  .related-topics { padding: 40px 0 48px; }
  .related-topics__grid { grid-template-columns: 1fr; gap: 18px; }
  .topic-card__image { height: 160px; }
  .faq { padding: 48px 0; }
  .cta { padding: 52px 0; }
  .cta__form { padding: 24px 20px; }
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .footer__bottom { flex-direction: column; text-align: left; }
  .footer__license { text-align: left; }
  .fab { width: 48px; height: 48px; font-size: 1.1rem; left: 12px; bottom: 80px; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .section { padding: 36px 0; }
  .header__logo a { font-size: 1rem; }
  .header__logo a span { font-size: 0.58rem; }
  .article-hero h1 { font-size: 1.3rem; }
  .article-hero__meta { gap: 8px; }
  .article-hero__category { font-size: 0.7rem; padding: 4px 10px; }
  .article-hero__date { font-size: 0.72rem; }
  .quick-stats__grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .quick-stat { padding: 16px 12px; }
  .quick-stat__number { font-size: 1.3rem; }
  .quick-stat__label { font-size: 0.78rem; }
  .related-topics__grid { grid-template-columns: 1fr; }
  .topic-card__image { height: 140px; }
  .topic-card__body { padding: 16px 18px 20px; }
  .faq-item__question { padding: 14px 16px; font-size: 0.92rem; }
  .faq-item__answer { padding: 0 16px; }
  .faq-item.open .faq-item__answer { padding: 0 16px 16px; }
  .cta__title { font-size: 1.3rem; }
  .cta__form { padding: 20px 16px; }
  .footer__grid { grid-template-columns: 1fr; gap: 20px; }
}

/* roulang page: category3 */
:root {
            --bg-primary: #0A2E1C;
            --bg-secondary: #123E25;
            --bg-tertiary: #0D3520;
            --bg-card: #143E28;
            --bg-dark-card: #0B2415;
            --accent-gold: #FFD700;
            --accent-gold-hover: #FFC300;
            --accent-red: #D32F2F;
            --accent-red-hover: #C62828;
            --text-white: #FFFFFF;
            --text-pale: #D1F2EB;
            --text-muted: #A8CFC0;
            --text-dark: #1A1A1A;
            --border-gold: rgba(255, 215, 0, 0.35);
            --border-subtle: rgba(209, 242, 235, 0.15);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.18);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.25);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.22);
            --shadow-red: 0 4px 16px rgba(211, 47, 47, 0.25);
            --font-family: 'Be Vietnam Pro', 'Segoe UI', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
            --container-max: 1200px;
            --header-height: 72px;
            --transition: 0.28s ease;
            --transition-fast: 0.18s ease;
            --transition-slow: 0.45s ease;
        }

        html { scroll-behavior: smooth; }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: var(--font-family);
            background: var(--bg-primary);
            color: var(--text-white);
            line-height: 1.6;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { text-decoration: none; color: inherit; transition: color var(--transition); }
        button { font-family: inherit; cursor: pointer; border: none; background: none; transition: all var(--transition-fast); }
        input, select, textarea { font-family: inherit; font-size: 16px; }
        a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
            outline: 2px solid var(--accent-gold);
            outline-offset: 2px;
            border-radius: 4px;
        }
        .container { width: 100%; max-width: var(--container-max); margin: 0 auto; padding: 0 24px; }
        .section { padding: 68px 0; position: relative; }
        .section--alt { background: var(--bg-secondary); }
        .section--dark { background: var(--bg-tertiary); }
        .section__label {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.12em;
            text-transform: uppercase;
            color: var(--accent-gold);
            margin-bottom: 12px;
        }
        .section__title {
            font-size: clamp(1.6rem, 3vw, 2.4rem);
            font-weight: 700;
            line-height: 1.28;
            color: var(--text-white);
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }
        .section__desc {
            font-size: 1rem;
            color: var(--text-muted);
            line-height: 1.65;
            max-width: 640px;
            margin-bottom: 36px;
        }
        .text-gold { color: var(--accent-gold); }
        .text-pale { color: var(--text-pale); }
        .text-muted { color: var(--text-muted); }

        /* Header */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(10, 46, 28, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-gold);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
        }
        .header__inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 16px;
        }
        .header__logo { flex-shrink: 0; }
        .header__logo a {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--accent-gold);
            letter-spacing: -0.01em;
            line-height: 1.2;
            display: flex;
            flex-direction: column;
        }
        .header__logo a span {
            font-size: 0.66rem;
            font-weight: 400;
            color: var(--text-pale);
            letter-spacing: 0.08em;
            text-transform: uppercase;
        }
        .header__nav {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
            justify-content: center;
        }
        .header__nav-link {
            display: block;
            padding: 10px 16px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-pale);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .header__nav-link:hover {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
        }
        .header__nav-link.active {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.12);
        }
        .header__nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 6px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--accent-gold);
            border-radius: 2px;
        }
        .header__auth { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
        .btn--ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 18px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-pale);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .btn--ghost:hover {
            color: var(--accent-gold);
            border-color: var(--border-gold);
            background: rgba(255, 215, 0, 0.06);
        }
        .btn--primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 20px;
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--text-dark);
            background: var(--accent-gold);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
            box-shadow: var(--shadow-gold);
            border: none;
        }
        .btn--primary:hover {
            background: var(--accent-gold-hover);
            transform: translateY(-1px);
            box-shadow: 0 6px 24px rgba(255, 215, 0, 0.3);
        }
        .btn--primary:active {
            transform: translateY(0);
            box-shadow: var(--shadow-sm);
        }
        .header__toggle {
            display: none;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            color: var(--text-pale);
            font-size: 1.3rem;
            transition: all var(--transition);
        }
        .header__toggle:hover {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.1);
        }

        /* Hero */
        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            background-image: linear-gradient(rgba(10, 46, 28, 0.82), rgba(10, 46, 28, 0.88)), url('/assets/images/backpic/back-2.jpg');
            background-size: cover;
            background-position: center;
            padding-top: var(--header-height);
            position: relative;
        }
        .hero__inner {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 48px;
            align-items: center;
            padding: 40px 0;
        }
        .hero__content {
            text-align: left;
        }
        .hero__label {
            display: inline-block;
            background: rgba(255, 215, 0, 0.12);
            border: 1px solid var(--border-gold);
            color: var(--accent-gold);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 20px;
            margin-bottom: 16px;
            letter-spacing: 0.03em;
        }
        .hero__title {
            font-size: clamp(2rem, 5vw, 3.2rem);
            font-weight: 800;
            line-height: 1.2;
            color: var(--text-white);
            margin-bottom: 18px;
            letter-spacing: -0.02em;
        }
        .hero__subtitle {
            font-size: 1.05rem;
            color: var(--text-pale);
            line-height: 1.65;
            margin-bottom: 28px;
            max-width: 560px;
        }
        .hero__countdown {
            background: rgba(11, 36, 21, 0.85);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            margin-bottom: 24px;
            box-shadow: var(--shadow-lg);
        }
        .hero__countdown-text {
            font-size: 0.9rem;
            color: var(--accent-gold);
            font-weight: 600;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .hero__countdown-timer {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .hero__countdown-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            padding: 12px 16px;
            min-width: 70px;
            text-align: center;
        }
        .hero__countdown-number {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent-gold);
            display: block;
            line-height: 1.2;
        }
        .hero__countdown-label {
            font-size: 0.7rem;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--text-muted);
        }
        .hero__subscribe {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .hero__input {
            flex: 1;
            min-width: 220px;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-subtle);
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-white);
            font-size: 0.95rem;
        }
        .hero__input::placeholder { color: var(--text-muted); }
        .hero__input:focus {
            border-color: var(--accent-gold);
            outline: none;
            background: rgba(255, 255, 255, 0.08);
        }
        .hero__visual {
            display: flex;
            justify-content: center;
            align-items: center;
            position: relative;
        }
        .hero__visual img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-gold);
            width: 100%;
            height: auto;
            object-fit: cover;
            aspect-ratio: 4 / 3;
        }
        .hero__play-btn {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 80px;
            height: 80px;
            background: var(--accent-red);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            color: #fff;
            box-shadow: 0 0 30px rgba(211, 47, 47, 0.6);
            border: 3px solid #fff;
            transition: all var(--transition);
        }
        .hero__play-btn:hover {
            background: #e53935;
            box-shadow: 0 0 45px rgba(211, 47, 47, 0.8);
        }

        /* Stats band */
        .stats-band {
            background: var(--bg-dark-card);
            border-top: 1px solid var(--border-subtle);
            border-bottom: 1px solid var(--border-subtle);
            padding: 24px 0;
        }
        .stats-band__grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            align-items: center;
        }
        .stats-band__item {
            text-align: left;
        }
        .stats-band__number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-gold);
            line-height: 1.2;
        }
        .stats-band__label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* Mistake list */
        .mistake-list {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .mistake-item {
            display: grid;
            grid-template-columns: 60px 1fr;
            gap: 20px;
            align-items: start;
            background: transparent;
            border-left: 2px solid var(--border-gold);
            padding-left: 24px;
            position: relative;
        }
        .mistake-item__icon {
            width: 60px;
            height: 60px;
            background: var(--bg-card);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-red);
            font-size: 1.4rem;
            border: 1px solid var(--border-subtle);
        }
        .mistake-item__title {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 8px;
        }
        .mistake-item__desc {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.65;
        }

        /* Comparison */
        .comparison-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }
        .comparison-column {
            background: rgba(255, 255, 255, 0.03);
            border-radius: var(--radius-md);
            padding: 28px;
            border: 1px solid var(--border-subtle);
        }
        .comparison-column--bad {
            border-color: rgba(211, 47, 47, 0.4);
        }
        .comparison-column--good {
            border-color: var(--border-gold);
            background: rgba(255, 215, 0, 0.03);
        }
        .comparison-column__header {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .comparison-column--bad .comparison-column__header { color: #ff8a80; }
        .comparison-column--good .comparison-column__header { color: var(--accent-gold); }
        .comparison-list {
            list-style: none;
        }
        .comparison-list li {
            padding: 8px 0;
            border-bottom: 1px solid var(--border-subtle);
            font-size: 0.9rem;
            color: var(--text-pale);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .comparison-list li:last-child { border-bottom: none; }
        .comparison-list i { font-size: 0.8rem; }

        /* Steps */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .step-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px 22px;
            border: 1px solid var(--border-subtle);
        }
        .step-item__number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--accent-gold);
            line-height: 1;
            margin-bottom: 12px;
            opacity: 0.8;
        }
        .step-item__title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 8px;
        }
        .step-item__desc {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--border-subtle);
            margin-bottom: 12px;
        }
        .faq-item__question {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-white);
            padding: 18px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            transition: color var(--transition);
        }
        .faq-item__question:hover {
            color: var(--accent-gold);
        }
        .faq-item__icon {
            font-size: 1.2rem;
            color: var(--accent-gold);
            transition: transform var(--transition);
        }
        .faq-item__answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .faq-item.open .faq-item__icon {
            transform: rotate(45deg);
        }
        .faq-item.open .faq-item__answer {
            max-height: 500px;
            padding-bottom: 20px;
        }

        /* CTA */
        .cta-section {
            background-image: linear-gradient(rgba(10, 46, 28, 0.9), rgba(10, 46, 28, 0.9)), url('/assets/images/backpic/back-3.jpg');
            background-size: cover;
            background-position: center;
            text-align: center;
        }
        .cta-section .section__title {
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-section .section__desc {
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-form {
            display: flex;
            gap: 12px;
            max-width: 520px;
            margin: 0 auto;
            flex-wrap: wrap;
        }
        .cta-form__input {
            flex: 1;
            min-width: 220px;
            padding: 14px 18px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-subtle);
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-white);
            font-size: 0.95rem;
        }
        .cta-form__input::placeholder { color: var(--text-muted); }
        .cta-form__input:focus {
            border-color: var(--accent-gold);
            outline: none;
            background: rgba(255, 255, 255, 0.08);
        }

        /* Footer */
        .footer {
            background: var(--bg-dark-card);
            padding: 50px 0 20px;
            border-top: 1px solid var(--border-gold);
        }
        .footer__grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 28px;
        }
        .footer__brand {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 12px;
        }
        .footer__brand-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.65;
            max-width: 360px;
        }
        .footer__col-title {
            font-size: 0.85rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--text-pale);
            margin-bottom: 16px;
        }
        .footer__links {
            list-style: none;
        }
        .footer__links li { margin-bottom: 8px; }
        .footer__links a {
            font-size: 0.9rem;
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .footer__links a:hover { color: var(--accent-gold); }
        .footer__badges {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 24px;
        }
        .footer__badge {
            display: inline-flex;
            align-items: center;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(255, 215, 0, 0.08);
            border: 1px solid var(--border-subtle);
            color: var(--text-pale);
        }
        .footer__badge--red {
            background: rgba(211, 47, 47, 0.2);
            border-color: rgba(211, 47, 47, 0.4);
            color: #ff8a80;
        }
        .footer__bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            padding-top: 20px;
            border-top: 1px solid var(--border-subtle);
        }
        .footer__copyright {
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .footer__copyright a {
            color: var(--accent-gold);
        }
        .footer__license {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero__inner {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero__visual { order: -1; }
            .steps-grid { grid-template-columns: repeat(2, 1fr); }
            .stats-band__grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 768px) {
            .header__nav {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(10, 46, 28, 0.98);
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                padding: 16px 24px;
                border-bottom: 1px solid var(--border-gold);
                box-shadow: var(--shadow-lg);
                transform: translateY(-120%);
                transition: transform 0.3s ease;
                z-index: -1;
            }
            .header__nav.open {
                transform: translateY(0);
                z-index: 999;
            }
            .header__nav-link {
                padding: 14px 16px;
                font-size: 1rem;
                text-align: center;
            }
            .header__toggle { display: flex; }
            .header__auth .btn--ghost,
            .header__auth .btn--primary {
                display: inline-flex;
            }
            .comparison-grid { grid-template-columns: 1fr; }
            .steps-grid { grid-template-columns: 1fr; }
            .stats-band__grid { grid-template-columns: 1fr 1fr; gap: 16px; }
            .mistake-item { grid-template-columns: 1fr; gap: 12px; padding-left: 20px; }
            .mistake-item__icon { width: 48px; height: 48px; font-size: 1.2rem; }
        }
        @media (max-width: 520px) {
            .section { padding: 48px 0; }
            .container { padding: 0 16px; }
            .hero__title { font-size: 1.8rem; }
            .hero__countdown-timer { gap: 8px; }
            .hero__countdown-item { min-width: 60px; padding: 10px 12px; }
            .hero__countdown-number { font-size: 1.4rem; }
            .stats-band__grid { grid-template-columns: 1fr; }
            .footer__grid { grid-template-columns: 1fr; gap: 24px; }
            .footer__bottom { flex-direction: column; text-align: center; }
        }

/* roulang page: category2 */
:root {
      --bg-primary: #0A2E1C;
      --bg-secondary: #123E25;
      --bg-tertiary: #0D3520;
      --bg-card: #143E28;
      --bg-dark-card: #0B2415;
      --accent-gold: #FFD700;
      --accent-gold-hover: #FFC300;
      --accent-red: #D32F2F;
      --accent-red-hover: #C62828;
      --text-white: #FFFFFF;
      --text-pale: #D1F2EB;
      --text-muted: #A8CFC0;
      --text-dark: #1A1A1A;
      --border-gold: rgba(255, 215, 0, 0.35);
      --border-subtle: rgba(209, 242, 235, 0.15);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --radius-xl: 28px;
      --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.18);
      --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.25);
      --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.35);
      --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.22);
      --shadow-red: 0 4px 16px rgba(211, 47, 47, 0.25);
      --font-family: 'Be Vietnam Pro', 'Segoe UI', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
      --container-max: 1200px;
      --header-height: 72px;
      --transition: 0.28s ease;
      --transition-fast: 0.18s ease;
      --transition-slow: 0.45s ease;
    }

    html { scroll-behavior: smooth; }
    body {
      font-family: var(--font-family);
      background: var(--bg-primary);
      color: var(--text-white);
      line-height: 1.6;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
      overflow-x: hidden;
      padding-top: var(--header-height);
    }
    img { max-width: 100%; height: auto; display: block; }
    a { text-decoration: none; color: inherit; transition: color var(--transition); }
    button { font-family: inherit; cursor: pointer; border: none; background: none; transition: all var(--transition-fast); }
    input, select, textarea { font-family: inherit; font-size: 16px; }
    a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
      outline: 2px solid var(--accent-gold);
      outline-offset: 2px;
      border-radius: 4px;
    }
    .container {
      width: 100%;
      max-width: var(--container-max);
      margin: 0 auto;
      padding: 0 24px;
    }
    .section { padding: 68px 0; position: relative; }
    .section--alt { background: var(--bg-secondary); }
    .section--dark { background: var(--bg-tertiary); }
    .section__label {
      display: inline-block;
      font-size: 0.78rem;
      font-weight: 600;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      color: var(--accent-gold);
      margin-bottom: 12px;
    }
    .section__title {
      font-size: clamp(1.6rem, 3vw, 2.4rem);
      font-weight: 700;
      line-height: 1.28;
      color: var(--text-white);
      margin-bottom: 14px;
      letter-spacing: -0.01em;
    }
    .section__desc {
      font-size: 1rem;
      color: var(--text-muted);
      line-height: 1.65;
      max-width: 640px;
      margin-bottom: 36px;
    }
    .text-gold { color: var(--accent-gold); }
    .text-pale { color: var(--text-pale); }
    .text-muted { color: var(--text-muted); }

    /* ========== Header / Navigation ========== */
    .header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 1000;
      height: var(--header-height);
      background: rgba(10, 46, 28, 0.92);
      backdrop-filter: blur(18px);
      -webkit-backdrop-filter: blur(18px);
      border-bottom: 1px solid var(--border-gold);
      box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
    }
    .header__inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 100%;
      gap: 16px;
    }
    .header__logo {
      flex-shrink: 0;
    }
    .header__logo a {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--accent-gold);
      letter-spacing: -0.01em;
      line-height: 1.2;
      display: flex;
      flex-direction: column;
    }
    .header__logo a span {
      font-size: 0.66rem;
      font-weight: 400;
      color: var(--text-pale);
      letter-spacing: 0.08em;
      text-transform: uppercase;
    }
    .header__nav {
      display: flex;
      align-items: center;
      gap: 8px;
      flex: 1;
      justify-content: center;
    }
    .header__nav-link {
      display: block;
      padding: 10px 16px;
      font-size: 0.9rem;
      font-weight: 500;
      color: var(--text-pale);
      border-radius: var(--radius-sm);
      transition: all var(--transition);
      position: relative;
      white-space: nowrap;
    }
    .header__nav-link:hover {
      color: var(--accent-gold);
      background: rgba(255, 215, 0, 0.08);
    }
    .header__nav-link.active {
      color: var(--accent-gold);
      background: rgba(255, 215, 0, 0.12);
    }
    .header__nav-link.active::after {
      content: '';
      position: absolute;
      bottom: 6px;
      left: 50%;
      transform: translateX(-50%);
      width: 20px;
      height: 2px;
      background: var(--accent-gold);
      border-radius: 2px;
    }
    .header__auth {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }
    .btn--ghost {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 18px;
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-pale);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-sm);
      transition: all var(--transition);
      white-space: nowrap;
    }
    .btn--ghost:hover {
      color: var(--accent-gold);
      border-color: var(--border-gold);
      background: rgba(255, 215, 0, 0.06);
    }
    .btn--primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 20px;
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--text-dark);
      background: var(--accent-gold);
      border-radius: var(--radius-sm);
      transition: all var(--transition);
      white-space: nowrap;
      box-shadow: var(--shadow-gold);
    }
    .btn--primary:hover {
      background: var(--accent-gold-hover);
      transform: translateY(-1px);
      box-shadow: 0 6px 24px rgba(255, 215, 0, 0.3);
    }
    .btn--primary:active {
      transform: translateY(0);
      box-shadow: var(--shadow-sm);
    }
    .header__toggle {
      display: none;
      width: 44px;
      height: 44px;
      align-items: center;
      justify-content: center;
      border-radius: var(--radius-sm);
      color: var(--text-pale);
      font-size: 1.3rem;
      transition: all var(--transition);
    }
    .header__toggle:hover {
      color: var(--accent-gold);
      background: rgba(255, 215, 0, 0.1);
    }

    /* ========== Hero Category ========== */
    .hero-category {
      padding: 80px 0 56px;
      background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-tertiary) 100%);
      border-bottom: 1px solid var(--border-gold);
    }
    .hero-category__inner {
      display: flex;
      flex-wrap: wrap;
      gap: 32px;
      align-items: center;
    }
    .hero-category__content {
      flex: 1 1 50%;
      min-width: 300px;
    }
    .hero-category__title {
      font-size: clamp(1.8rem, 4vw, 2.8rem);
      font-weight: 700;
      line-height: 1.25;
      color: var(--text-white);
      margin-bottom: 16px;
      letter-spacing: -0.01em;
    }
    .hero-category__desc {
      font-size: 1rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 24px;
      max-width: 560px;
    }
    .hero-category__status {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 28px;
    }
    .status-pill {
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 8px 16px;
      background: rgba(255, 215, 0, 0.08);
      border: 1px solid var(--border-gold);
      border-radius: 50px;
      font-size: 0.85rem;
      font-weight: 500;
      color: var(--text-pale);
    }
    .status-pill .icon {
      color: var(--accent-gold);
      font-size: 1.1rem;
    }
    .hero-category__icons {
      flex: 1 1 40%;
      min-width: 280px;
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
    }
    .icon-tile {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 20px;
      display: flex;
      flex-direction: column;
      align-items: flex-start;
      gap: 8px;
      transition: all var(--transition);
    }
    .icon-tile:hover {
      border-color: var(--border-gold);
      transform: translateY(-3px);
      box-shadow: var(--shadow-gold);
    }
    .icon-tile .icon {
      font-size: 1.8rem;
      color: var(--accent-gold);
      margin-bottom: 4px;
    }
    .icon-tile .icon-label {
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--text-white);
    }
    .icon-tile .icon-desc {
      font-size: 0.78rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* ========== Stats Dashboard ========== */
    .stats-grid {
      display: flex;
      flex-wrap: wrap;
      gap: 20px;
      margin-top: 24px;
    }
    .stat-card {
      flex: 1 1 180px;
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 24px 20px;
      display: flex;
      flex-direction: column;
      gap: 6px;
      transition: all var(--transition);
    }
    .stat-card:hover {
      border-color: var(--border-gold);
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .stat-card .stat-value {
      font-size: 2rem;
      font-weight: 700;
      color: var(--accent-gold);
      line-height: 1.2;
    }
    .stat-card .stat-label {
      font-size: 0.9rem;
      color: var(--text-pale);
      font-weight: 500;
    }
    .stat-card .stat-note {
      font-size: 0.75rem;
      color: var(--text-muted);
    }

    /* ========== Strategy Matrix ========== */
    .matrix-list {
      display: flex;
      flex-direction: column;
      gap: 16px;
      margin-top: 24px;
    }
    .matrix-item {
      display: flex;
      align-items: flex-start;
      gap: 18px;
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 20px 24px;
      transition: all var(--transition);
    }
    .matrix-item:hover {
      border-color: var(--border-gold);
      box-shadow: var(--shadow-sm);
    }
    .matrix-item .matrix-icon {
      flex-shrink: 0;
      width: 48px;
      height: 48px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 12px;
      background: rgba(255, 215, 0, 0.1);
      color: var(--accent-gold);
      font-size: 1.5rem;
    }
    .matrix-item .matrix-body {
      flex: 1;
    }
    .matrix-item .matrix-title {
      font-size: 1.1rem;
      font-weight: 600;
      color: var(--text-white);
      margin-bottom: 4px;
    }
    .matrix-item .matrix-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* ========== Comparison ========== */
    .comparison-grid {
      display: flex;
      flex-wrap: wrap;
      gap: 24px;
      margin-top: 24px;
    }
    .comparison-card {
      flex: 1 1 280px;
      background: var(--bg-dark-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-lg);
      padding: 28px;
      transition: all var(--transition);
    }
    .comparison-card--good {
      border-color: var(--border-gold);
      box-shadow: var(--shadow-gold);
    }
    .comparison-card--bad {
      border-color: rgba(211, 47, 47, 0.4);
    }
    .comparison-card__title {
      font-size: 1.3rem;
      font-weight: 700;
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .comparison-card--good .comparison-card__title { color: var(--accent-gold); }
    .comparison-card--bad .comparison-card__title { color: #f28b82; }
    .comparison-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .comparison-list li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      margin-bottom: 12px;
      font-size: 0.9rem;
      color: var(--text-pale);
      line-height: 1.5;
    }
    .comparison-list li .badge-icon {
      flex-shrink: 0;
      margin-top: 2px;
      font-size: 1.1rem;
    }
    .comparison-card--good .badge-icon { color: var(--accent-gold); }
    .comparison-card--bad .badge-icon { color: #f28b82; }

    /* ========== FAQ ========== */
    .faq-list {
      max-width: 800px;
      margin: 24px auto 0;
    }
    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      margin-bottom: 12px;
      overflow: hidden;
      transition: all var(--transition);
    }
    .faq-item.active {
      border-color: var(--border-gold);
    }
    .faq-question {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 18px 22px;
      text-align: left;
      font-size: 1rem;
      font-weight: 600;
      color: var(--text-white);
      background: transparent;
      transition: all var(--transition);
    }
    .faq-question:hover {
      color: var(--accent-gold);
    }
    .faq-question .faq-icon {
      font-size: 1.2rem;
      color: var(--accent-gold);
      transition: transform var(--transition);
    }
    .faq-item.active .faq-icon {
      transform: rotate(45deg);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease;
    }
    .faq-answer-inner {
      padding: 0 22px 20px;
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* ========== CTA Form ========== */
    .cta-form-section {
      background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
      border-top: 1px solid var(--border-gold);
      border-bottom: 1px solid var(--border-gold);
    }
    .cta-form-card {
      background: var(--bg-card);
      border: 1px solid var(--border-gold);
      border-radius: var(--radius-xl);
      padding: 36px 32px;
      max-width: 680px;
      margin: 0 auto;
      box-shadow: var(--shadow-lg);
    }
    .cta-form-card .form-control {
      background: var(--bg-dark-card);
      border: 1px solid var(--border-subtle);
      color: var(--text-white);
      border-radius: var(--radius-sm);
      padding: 12px 16px;
      margin-bottom: 16px;
      transition: all var(--transition);
    }
    .cta-form-card .form-control:focus {
      border-color: var(--accent-gold);
      box-shadow: 0 0 0 0.2rem rgba(255, 215, 0, 0.15);
      background: var(--bg-dark-card);
      color: var(--text-white);
    }
    .cta-form-card .form-label {
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-pale);
      margin-bottom: 6px;
    }
    .cta-form-card .btn--primary {
      width: 100%;
      padding: 14px;
      font-size: 1rem;
      margin-top: 8px;
    }

    /* ========== Footer ========== */
    .footer {
      background: var(--bg-dark-card);
      padding: 48px 0 24px;
      border-top: 1px solid var(--border-gold);
    }
    .footer__grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 32px;
      margin-bottom: 32px;
    }
    .footer__brand {
      font-size: 1.3rem;
      font-weight: 700;
      color: var(--accent-gold);
      margin-bottom: 12px;
    }
    .footer__brand-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
    }
    .footer__col-title {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-white);
      margin-bottom: 16px;
    }
    .footer__links {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer__links li {
      margin-bottom: 8px;
    }
    .footer__links a {
      font-size: 0.9rem;
      color: var(--text-muted);
      transition: color var(--transition);
    }
    .footer__links a:hover {
      color: var(--accent-gold);
    }
    .footer__badges {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-bottom: 24px;
      padding-top: 16px;
      border-top: 1px solid var(--border-subtle);
    }
    .footer__badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 14px;
      border: 1px solid var(--border-subtle);
      border-radius: 50px;
      font-size: 0.75rem;
      font-weight: 600;
      color: var(--text-pale);
      background: rgba(255, 255, 255, 0.03);
    }
    .footer__badge--red {
      border-color: rgba(211, 47, 47, 0.5);
      color: #f28b82;
    }
    .footer__bottom {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding-top: 16px;
      border-top: 1px solid var(--border-subtle);
      font-size: 0.78rem;
      color: var(--text-muted);
    }
    .footer__bottom a {
      color: var(--accent-gold);
    }
    .footer__license {
      font-size: 0.78rem;
      color: var(--text-muted);
    }

    /* ========== Responsive ========== */
    @media (max-width: 1024px) {
      .header__nav {
        gap: 4px;
      }
      .header__nav-link {
        padding: 10px 12px;
        font-size: 0.82rem;
      }
    }
    @media (max-width: 768px) {
      .header__toggle {
        display: flex;
      }
      .header__nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: rgba(10, 46, 28, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: flex-start;
        padding: 16px 24px;
        gap: 4px;
        border-bottom: 1px solid var(--border-gold);
        transform: translateY(-120%);
        transition: transform var(--transition);
        z-index: 999;
      }
      .header__nav.show {
        transform: translateY(0);
      }
      .header__nav-link {
        width: 100%;
        padding: 14px 16px;
      }
      .header__auth .btn--ghost,
      .header__auth .btn--primary {
        padding: 8px 14px;
        font-size: 0.78rem;
      }
      .hero-category__inner {
        flex-direction: column;
      }
      .hero-category__content,
      .hero-category__icons {
        flex-basis: 100%;
      }
      .footer__grid {
        grid-template-columns: 1fr 1fr;
      }
      .section { padding: 48px 0; }
    }
    @media (max-width: 520px) {
      .container { padding: 0 16px; }
      .header__auth .btn--ghost { display: none; } /* Keep sign up visible */
      .header__auth .btn--primary { padding: 8px 12px; font-size: 0.75rem; }
      .hero-category__icons { grid-template-columns: 1fr; }
      .stats-grid { flex-direction: column; }
      .footer__grid { grid-template-columns: 1fr; }
      .comparison-grid { flex-direction: column; }
      .cta-form-card { padding: 24px 20px; }
    }