/* roulang page: index */
:root {
  --primary: #2B6CB0;
  --primary-dark: #1E4E82;
  --primary-light: #EBF3FA;
  --secondary: #D97706;
  --secondary-dark: #B45309;
  --bg: #F6F8FB;
  --bg-alt: #EEF2F7;
  --white: #FFFFFF;
  --text: #16283C;
  --text-body: #3D4C5E;
  --text-secondary: #748499;
  --text-placeholder: #A0AEC0;
  --border: #E2E8F0;
  --shadow: 0 2px 8px rgba(22,40,60,0.06);
  --shadow-hover: 0 8px 24px rgba(22,40,60,0.12);
  --radius: 12px;
  --radius-sm: 8px;
  --radius-full: 999px;
  --transition: 0.2s ease;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text-body);
  line-height: 1.7;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary-dark); }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, h5, h6 {
  color: var(--text);
  margin: 0 0 16px;
  line-height: 1.3;
  font-weight: 700;
  letter-spacing: 0.5px;
}
p { margin: 0 0 16px; }
button { font-family: var(--font); cursor: pointer; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-alt { background: var(--white); }
.section-header { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-title { font-size: 28px; margin-bottom: 12px; }
.section-subtitle { font-size: 15px; color: var(--text-secondary); line-height: 1.7; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  transition: all var(--transition);
  text-decoration: none;
  line-height: 1.4;
}
.btn:focus-visible {
  outline: 3px solid rgba(43,108,176,0.3);
  outline-offset: 2px;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.btn-secondary { background: var(--white); color: var(--primary); border-color: var(--primary); }
.btn-secondary:hover { background: var(--primary-light); color: var(--primary-dark); transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.btn-gold { background: var(--secondary); color: #fff; }
.btn-gold:hover { background: var(--secondary-dark); color: #fff; transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.btn-sm { padding: 8px 18px; font-size: 14px; }
.btn-lg { padding: 14px 36px; font-size: 16px; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  height: 72px;
  display: flex;
  align-items: center;
  transition: box-shadow var(--transition);
}
.site-header.scrolled { box-shadow: 0 4px 16px rgba(22,40,60,0.08); }
.nav-container { display: flex; align-items: center; justify-content: space-between; width: 100%; }
.brand { font-size: 22px; font-weight: 800; color: var(--text); letter-spacing: 0.5px; display: flex; align-items: center; gap: 10px; }
.brand:hover { color: var(--primary); }
.brand-icon { width: 36px; height: 36px; background: var(--primary); border-radius: 10px; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 16px; flex-shrink: 0; }
.main-nav { display: flex; align-items: center; gap: 4px; }
.nav-link {
  padding: 8px 14px;
  font-size: 15px;
  color: var(--text-body);
  border-radius: 6px;
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  text-decoration: none;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: width var(--transition);
}
.nav-link:hover { color: var(--primary); }
.nav-link:hover::after { width: 24px; }
.nav-link.active { color: var(--primary); font-weight: 600; }
.nav-link.active::after { width: 24px; }
.nav-right { display: flex; align-items: center; gap: 12px; }

.mega-wrap { position: relative; }
.mega-trigger {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--white);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-body);
  transition: all var(--transition);
}
.mega-trigger:hover { border-color: var(--primary); color: var(--primary); }
.mega-trigger i { font-size: 12px; }
.mega-panel {
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  width: 520px;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: 0 12px 32px rgba(22,40,60,0.12);
  border: 1px solid var(--border);
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all 0.25s ease;
  z-index: 100;
}
.mega-wrap:hover .mega-panel, .mega-wrap.open .mega-panel {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.mega-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.mega-col h4 {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-secondary);
  margin-bottom: 16px;
  font-weight: 600;
}
.mega-cat {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  background: var(--bg);
  margin-bottom: 8px;
  color: var(--text-body);
  transition: all var(--transition);
}
.mega-cat i { width: 32px; height: 32px; background: var(--primary-light); color: var(--primary); border-radius: 8px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.mega-cat:hover { background: var(--primary-light); color: var(--primary); transform: translateX(2px); }
.mega-cat span { font-size: 14px; font-weight: 600; }
.mega-post {
  display: block;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
  background: var(--bg);
  transition: all var(--transition);
}
.mega-post:hover { background: var(--primary-light); transform: translateX(2px); }
.mega-post-title { display: block; font-size: 14px; color: var(--text-body); font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.mega-post-time { display: block; font-size: 12px; color: var(--text-secondary); margin-top: 2px; }

.hamburger {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--white);
  font-size: 18px;
  color: var(--text);
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}
.hamburger:hover { border-color: var(--primary); color: var(--primary); }

.mobile-menu {
  display: none;
  position: fixed;
  top: 60px;
  left: 0;
  right: 0;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 12px 32px rgba(22,40,60,0.12);
  z-index: 999;
  padding: 16px 0;
}
.mobile-menu.open { display: block; }
.mobile-menu a {
  display: block;
  padding: 12px 24px;
  font-size: 15px;
  color: var(--text-body);
  border-left: 3px solid transparent;
}
.mobile-menu a:hover, .mobile-menu a.active { color: var(--primary); border-left-color: var(--primary); background: var(--primary-light); }

/* Hero */
.hero {
  position: relative;
  min-height: 640px;
  display: flex;
  align-items: center;
  padding: 80px 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.12);
}
.hero-content { position: relative; z-index: 2; max-width: 640px; }
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  margin-bottom: 24px;
}
.hero-title { font-size: 40px; line-height: 1.3; margin-bottom: 20px; }
.hero-subtitle { font-size: 17px; color: var(--text-body); line-height: 1.7; margin-bottom: 32px; max-width: 540px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 48px; }
.hero-stats { display: flex; flex-wrap: wrap; gap: 40px; }
.hero-stat { text-align: left; }
.hero-stat-num { font-size: 32px; font-weight: 800; color: var(--text); line-height: 1.2; display: block; }
.hero-stat-label { font-size: 13px; color: var(--text-secondary); margin-top: 4px; display: block; }
.hero-art { position: absolute; right: 24px; top: 50%; transform: translateY(-50%); width: 46%; max-width: 520px; z-index: 2; }
.hero-art img { border-radius: var(--radius); box-shadow: var(--shadow-hover); }

/* Features */
.features { padding: 80px 0; }
.feature-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  position: relative;
  overflow: hidden;
  transition: all var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.2s ease;
}
.feature-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.feature-card:hover::before { transform: scaleX(1); }
.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 20px;
}
.feature-title { font-size: 18px; margin-bottom: 10px; }
.feature-text { font-size: 14px; color: var(--text-secondary); line-height: 1.7; margin-bottom: 16px; flex-grow: 1; }
.feature-link { font-size: 14px; font-weight: 600; display: inline-flex; align-items: center; gap: 6px; }
.feature-link i { font-size: 12px; transition: transform var(--transition); }
.feature-link:hover i { transform: translateX(4px); }

/* Showcase */
.showcase { padding: 80px 0; }
.showcase-row { display: flex; align-items: center; gap: 56px; margin-bottom: 72px; }
.showcase-row:last-child { margin-bottom: 0; }
.showcase-row.reverse { flex-direction: row-reverse; }
.showcase-media { flex: 1; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-hover); }
.showcase-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.3s ease; }
.showcase-media:hover img { transform: scale(1.02); }
.showcase-content { flex: 1; }
.showcase-content h3 { font-size: 22px; margin-bottom: 16px; }
.showcase-content p { font-size: 15px; color: var(--text-secondary); line-height: 1.7; margin-bottom: 20px; }
.showcase-points li { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 10px; font-size: 15px; color: var(--text-body); }
.showcase-points li i { color: var(--primary); margin-top: 4px; flex-shrink: 0; }

/* Testimonials */
.testimonials { background: var(--white); padding: 80px 0; }
.testi-stats { display: flex; flex-wrap: wrap; justify-content: center; gap: 48px; margin-bottom: 56px; text-align: center; }
.testi-stat-num { font-size: 36px; font-weight: 800; color: var(--text); line-height: 1.2; }
.testi-stat-num span { color: var(--secondary); }
.testi-stat-label { font-size: 14px; color: var(--text-secondary); margin-top: 4px; }
.testi-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.testi-card { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; transition: all var(--transition); }
.testi-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); background: var(--white); }
.testi-stars { color: var(--secondary); font-size: 14px; margin-bottom: 16px; letter-spacing: 2px; }
.testi-text { font-size: 14px; color: var(--text-body); line-height: 1.7; margin-bottom: 20px; }
.testi-footer { display: flex; align-items: center; gap: 12px; }
.testi-avatar { width: 40px; height: 40px; border-radius: 50%; background: var(--primary-light); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 14px; font-weight: 700; flex-shrink: 0; }
.testi-name { font-size: 14px; font-weight: 600; color: var(--text); }
.testi-role { font-size: 12px; color: var(--text-secondary); }
.testi-tag { font-size: 12px; background: var(--primary-light); color: var(--primary); padding: 4px 10px; border-radius: var(--radius-full); }

/* Pricing */
.pricing { padding: 80px 0; }
.price-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; align-items: stretch; }
.price-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 28px;
  position: relative;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}
.price-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.price-card-featured {
  border: 2px solid var(--primary);
  padding: 44px 32px;
  box-shadow: var(--shadow-hover);
}
.price-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--secondary);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  padding: 4px 16px;
  border-radius: var(--radius-full);
  white-space: nowrap;
  letter-spacing: 0.5px;
}
.price-name { font-size: 20px; margin-bottom: 8px; }
.price-desc { font-size: 13px; color: var(--text-secondary); margin-bottom: 24px; }
.price-amount { font-size: 42px; font-weight: 800; color: var(--text); line-height: 1.2; margin-bottom: 4px; }
.price-amount span { font-size: 16px; font-weight: 400; color: var(--text-secondary); }
.price-period { font-size: 13px; color: var(--text-secondary); margin-bottom: 24px; }
.price-features { margin-bottom: 32px; flex-grow: 1; }
.price-features li { display: flex; align-items: flex-start; gap: 10px; padding: 8px 0; font-size: 14px; color: var(--text-body); border-bottom: 1px solid var(--bg-alt); }
.price-features li:last-child { border-bottom: none; }
.price-features li i { color: var(--primary); margin-top: 4px; flex-shrink: 0; font-size: 13px; }
.price-features li.featured i { color: var(--secondary); }
.price-cta .btn { width: 100%; }

/* FAQ */
.faq { padding: 80px 0; }
.faq-wrap { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  transition: all var(--transition);
}
.faq-item:hover { border-color: var(--primary); }
.faq-item.open { border-color: var(--primary); box-shadow: var(--shadow-hover); }
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  background: none;
  border: none;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  text-align: left;
  gap: 16px;
  transition: color var(--transition);
}
.faq-question:hover { color: var(--primary); }
.faq-icon { width: 24px; height: 24px; border-radius: 50%; background: var(--primary-light); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 12px; flex-shrink: 0; transition: transform 0.25s ease; }
.faq-item.open .faq-icon { transform: rotate(45deg); background: var(--primary); color: #fff; }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.25s ease; padding: 0 24px; }
.faq-item.open .faq-answer { max-height: 300px; padding-bottom: 20px; }
.faq-answer p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; margin-bottom: 0; }

/* News / CMS */
.news { background: var(--white); padding: 80px 0; }
.news-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.news-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: block;
  transition: all var(--transition);
  text-decoration: none;
  color: var(--text-body);
}
.news-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); text-decoration: none; color: var(--text-body); }
.news-thumb { position: relative; height: 160px; overflow: hidden; background: var(--bg-alt); }
.news-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.3s ease; }
.news-card:hover .news-thumb img { transform: scale(1.05); }
.news-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(255,255,255,0.95);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  box-shadow: 0 2px 8px rgba(22,40,60,0.1);
}
.news-body { padding: 20px; }
.news-title { font-size: 16px; font-weight: 600; color: var(--text); line-height: 1.4; margin-bottom: 10px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.news-excerpt { font-size: 14px; color: var(--text-secondary); line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 16px; }
.news-meta { display: flex; align-items: center; justify-content: space-between; font-size: 13px; color: var(--text-placeholder); }
.news-meta time { color: var(--text-secondary); }
.empty-state {
  text-align: center;
  border: 1px dashed #CBD5E0;
  border-radius: var(--radius);
  padding: 48px;
  color: var(--text-secondary);
  font-size: 15px;
  background: var(--bg);
  grid-column: 1 / -1;
}

/* CTA */
.cta-section { padding: 80px 0; background: linear-gradient(135deg, #F0F6FC 0%, #F9FBFD 100%); }
.cta-inner { text-align: center; max-width: 640px; margin: 0 auto; }
.cta-title { font-size: 28px; margin-bottom: 16px; }
.cta-text { font-size: 15px; color: var(--text-secondary); margin-bottom: 32px; }
.cta-buttons { display: flex; justify-content: center; flex-wrap: wrap; gap: 16px; }

/* Footer */
.footer { background: var(--white); border-top: 1px solid var(--border); padding: 64px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 40px; padding-bottom: 48px; }
.footer-brand { font-size: 20px; font-weight: 800; color: var(--text); display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.footer-desc { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }
.footer-col h4 { font-size: 15px; margin-bottom: 16px; color: var(--text); }
.footer-col a { display: block; padding: 6px 0; font-size: 14px; color: var(--text-body); transition: all var(--transition); }
.footer-col a:hover { color: var(--primary); padding-left: 6px; }
.footer-contact p { font-size: 14px; color: var(--text-body); display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.footer-contact i { color: var(--primary); width: 20px; text-align: center; }
.footer-bottom { border-top: 1px solid var(--border); padding: 20px 0; text-align: center; font-size: 13px; color: var(--text-secondary); }
.footer-bottom a { color: var(--text-secondary); }
.footer-bottom a:hover { color: var(--primary); }

/* Floating CTA */
.float-cta {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 900;
  display: none;
  align-items: center;
  gap: 8px;
  background: var(--white);
  border: 1px solid var(--primary);
  border-radius: 50px;
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  box-shadow: var(--shadow-hover);
  cursor: pointer;
  transition: all var(--transition);
}
.float-cta:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
.float-cta.show { display: flex; }
.float-cta i { font-size: 18px; }

/* Responsive */
@media (max-width: 1024px) {
  .main-nav { display: none; }
  .hamburger { display: inline-flex; }
  .hero { padding: 60px 0; }
  .hero-art { position: static; transform: none; width: 100%; max-width: 520px; margin: 40px auto 0; }
  .hero-content { max-width: 100%; }
  .showcase-row { flex-direction: column; gap: 32px; }
  .showcase-row.reverse { flex-direction: column; }
  .price-cards { grid-template-columns: repeat(2, 1fr); }
  .price-card-featured { order: -1; }
  .news-cards { grid-template-columns: repeat(2, 1fr); }
  .testi-cards { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 640px) {
  .section { padding: 40px 0; }
  .section-title { font-size: 24px; }
  .hero { min-height: auto; padding: 48px 0; }
  .hero-title { font-size: 28px; }
  .hero-stats { gap: 20px; }
  .hero-stat-num { font-size: 24px; }
  .price-cards { grid-template-columns: 1fr; }
  .price-card-featured { order: 0; }
  .testi-cards { grid-template-columns: 1fr; }
  .news-cards { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .mega-panel { width: calc(100vw - 48px); left: 50%; right: auto; transform: translateX(-50%) translateY(8px); }
  .mega-wrap:hover .mega-panel, .mega-wrap.open .mega-panel { transform: translateX(-50%) translateY(0); }
  .mega-grid { grid-template-columns: 1fr; gap: 16px; }
  .float-cta { bottom: 20px; right: 20px; padding: 10px 18px; }
  .testi-stats { gap: 24px; }
  .testi-stat-num { font-size: 28px; }
}

/* roulang page: article */
:root {
            --primary: #2B6CB0;
            --primary-dark: #1E4E82;
            --primary-light: #EBF3FA;
            --secondary: #D97706;
            --secondary-dark: #B45309;
            --bg: #F6F8FB;
            --bg-alt: #EEF2F7;
            --card: #FFFFFF;
            --text: #16283C;
            --body: #3D4C5E;
            --muted: #748499;
            --border: #E2E8F0;
            --shadow: 0 2px 8px rgba(22, 40, 60, 0.06);
            --shadow-hover: 0 8px 24px rgba(22, 40, 60, 0.12);
            --radius: 12px;
            --radius-md: 8px;
            --radius-lg: 16px;
            --transition: 0.2s ease;
            --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }
        
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        
        html {
            scroll-behavior: smooth;
        }
        
        @media (prefers-reduced-motion: reduce) {
            html {
                scroll-behavior: auto;
            }
        }
        
        body {
            font-family: var(--font-main);
            font-size: 16px;
            line-height: 1.7;
            color: var(--body);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        
        img {
            max-width: 100%;
            display: block;
            height: auto;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        
        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 12px rgba(22, 40, 60, 0.04);
            height: 72px;
            display: flex;
            align-items: center;
        }
        
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            width: 100%;
        }
        
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        
        .brand-icon {
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            color: #fff;
            border-radius: 10px;
            font-size: 18px;
            flex-shrink: 0;
        }
        
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            margin: 0 auto;
        }
        
        .nav-link {
            padding: 10px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--body);
            border-radius: var(--radius-md);
            position: relative;
            transition: color var(--transition), background var(--transition);
        }
        
        .nav-link:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        
        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }
        
        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 2px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        
        .header-cta {
            padding: 10px 24px;
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            background: var(--primary);
            border-radius: var(--radius-md);
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            white-space: nowrap;
        }
        
        .header-cta:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(43, 108, 176, 0.25);
        }
        
        .header-cta:focus,
        .btn:focus,
        .nav-link:focus {
            outline: 3px solid rgba(43, 108, 176, 0.3);
            outline-offset: 2px;
        }
        
        .hamburger {
            display: none;
            width: 44px;
            height: 44px;
            border: 1px solid var(--border);
            background: #fff;
            border-radius: var(--radius-md);
            font-size: 20px;
            color: var(--text);
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: background var(--transition);
        }
        
        .hamburger:hover {
            background: var(--primary-light);
        }
        
        .mobile-nav {
            display: none;
            position: fixed;
            top: 60px;
            left: 0;
            right: 0;
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 8px 24px rgba(22, 40, 60, 0.1);
            padding: 16px 24px;
            z-index: 99;
        }
        
        .mobile-nav.open {
            display: block;
        }
        
        .mobile-nav .nav-link {
            display: block;
            padding: 14px 16px;
            border-radius: var(--radius-md);
            font-size: 16px;
            border-bottom: 1px solid #f0f3f7;
        }
        
        .mobile-nav .nav-link:last-child {
            border-bottom: none;
        }
        
        .mobile-nav .nav-link:hover {
            background: var(--primary-light);
            color: var(--primary);
        }
        
        /* ===== Breadcrumb ===== */
        .breadcrumb-wrap {
            padding: 28px 0 0;
            background: var(--bg);
        }
        
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 14px;
            color: var(--muted);
        }
        
        .breadcrumb a {
            color: var(--muted);
            transition: color var(--transition);
        }
        
        .breadcrumb a:hover {
            color: var(--primary);
        }
        
        .breadcrumb i {
            font-size: 12px;
            color: #c0c8d4;
        }
        
        .breadcrumb .current {
            color: var(--text);
            font-weight: 500;
            max-width: 260px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        
        /* ===== Article ===== */
        .article-page {
            padding: 32px 0 60px;
            background: var(--bg);
        }
        
        .article-card {
            background: #fff;
            border-radius: 16px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            padding: 48px;
            margin-bottom: 40px;
        }
        
        .article-header {
            border-bottom: 1px solid var(--border);
            padding-bottom: 28px;
            margin-bottom: 32px;
        }
        
        .article-header h1 {
            font-size: 34px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--text);
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }
        
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
            font-size: 14px;
            color: var(--muted);
        }
        
        .meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        
        .meta-item i {
            font-size: 14px;
            color: var(--primary);
        }
        
        .meta-category {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 999px;
            text-transform: none;
        }
        
        .article-content {
            max-width: 760px;
            margin: 0 auto;
        }
        
        .article-content p {
            font-size: 15.5px;
            line-height: 1.8;
            color: var(--body);
            margin-bottom: 24px;
            text-align: justify;
            hyphens: none;
        }
        
        .article-content>p:first-of-type::first-letter {
            font-size: 3.2em;
            float: left;
            line-height: 1;
            margin-right: 10px;
            font-weight: 700;
            color: var(--primary);
        }
        
        .article-content h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text);
            margin: 40px 0 16px;
            padding-bottom: 8px;
            border-bottom: 2px solid var(--primary-light);
        }
        
        .article-content h3 {
            font-size: 19px;
            font-weight: 600;
            color: var(--text);
            margin: 28px 0 12px;
        }
        
        .article-content ul,
        .article-content ol {
            margin: 0 0 24px 24px;
            color: var(--body);
            font-size: 15.5px;
            line-height: 1.8;
        }
        
        .article-content li {
            margin-bottom: 6px;
        }
        
        .article-content blockquote {
            border-left: 4px solid var(--primary);
            background: var(--primary-light);
            padding: 16px 20px;
            border-radius: 0 8px 8px 0;
            margin: 24px 0;
            color: var(--text);
            font-size: 15px;
            line-height: 1.7;
        }
        
        .article-content code {
            background: var(--bg-alt);
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 14px;
            font-family: "SF Mono", Consolas, monospace;
            color: var(--primary-dark);
        }
        
        .article-content pre {
            background: #1a2432;
            color: #d6e4f0;
            padding: 20px;
            border-radius: 12px;
            overflow-x: auto;
            margin: 24px 0;
            font-size: 14px;
            line-height: 1.6;
        }
        
        .article-content pre code {
            background: transparent;
            color: inherit;
            padding: 0;
            font-size: inherit;
        }
        
        .article-content img {
            border-radius: 12px;
            margin: 24px 0;
        }
        
        .article-content a {
            font-weight: 500;
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        
        .article-content a:hover {
            color: var(--primary-dark);
            text-decoration-thickness: 2px;
        }
        
        /* ===== Gallery ===== */
        .article-gallery {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin: 40px 0 32px;
        }
        
        .article-gallery figure {
            margin: 0;
            border-radius: 12px;
            overflow: hidden;
            background: var(--bg-alt);
        }
        
        .article-gallery img {
            width: 100%;
            height: 220px;
            object-fit: cover;
            transition: transform 0.3s ease;
        }
        
        .article-gallery figure:hover img {
            transform: scale(1.03);
        }
        
        .article-gallery figcaption {
            padding: 12px 16px;
            background: #fff;
            border-top: 1px solid var(--border);
            font-size: 13px;
            color: var(--muted);
            text-align: center;
        }
        
        /* ===== Tags ===== */
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 32px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
        }
        
        .tag {
            display: inline-block;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 6px 16px;
            font-size: 13px;
            color: var(--body);
            transition: all var(--transition);
            cursor: default;
        }
        
        .tag:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }
        
        /* ===== Not Found ===== */
        .not-found {
            text-align: center;
            padding: 60px 40px;
            border: 2px dashed var(--border);
            border-radius: 16px;
            background: #fafcfd;
        }
        
        .not-found p {
            font-size: 18px;
            color: var(--muted);
            margin-bottom: 20px;
        }
        
        .not-found .btn {
            display: inline-block;
        }
        
        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 600;
            border-radius: 8px;
            border: none;
            cursor: pointer;
            transition: all 0.2s ease;
            text-decoration: none !important;
            line-height: 1.5;
        }
        
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(43, 108, 176, 0.25);
        }
        
        .btn-outline {
            background: #fff;
            color: var(--primary);
            border: 1px solid var(--primary);
        }
        
        .btn-outline:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(43, 108, 176, 0.12);
        }
        
        .btn-gold {
            background: var(--secondary);
            color: #fff;
        }
        
        .btn-gold:hover {
            background: var(--secondary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(217, 119, 6, 0.25);
        }
        
        .btn:focus {
            outline: 3px solid rgba(43, 108, 176, 0.3);
            outline-offset: 2px;
        }
        
        /* ===== Related ===== */
        .related-section {
            margin: 48px 0 24px;
        }
        
        .related-section .section-title {
            font-size: 24px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 24px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--primary-light);
            position: relative;
        }
        
        .related-section .section-title::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 48px;
            height: 2px;
            background: var(--primary);
        }
        
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        
        .related-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: transform var(--transition), box-shadow var(--transition);
            display: block;
            color: var(--text);
        }
        
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            color: var(--text);
        }
        
        .related-card img {
            width: 100%;
            height: 160px;
            object-fit: cover;
        }
        
        .related-card .card-body {
            padding: 16px 20px;
        }
        
        .related-card .card-body h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.4;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        
        .related-card .card-meta {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--muted);
        }
        
        .related-card .badge {
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 2px 10px;
            border-radius: 999px;
        }
        
        /* ===== Back Entry ===== */
        .back-entry {
            text-align: center;
            margin: 32px 0 0;
        }
        
        /* ===== CTA Section ===== */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, var(--primary-light) 0%, #f0f6fb 50%, #ffffff 100%);
            border-top: 1px solid var(--border);
            text-align: center;
        }
        
        .cta-section h2 {
            font-size: 30px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
        }
        
        .cta-section p {
            font-size: 16px;
            color: var(--muted);
            max-width: 560px;
            margin: 0 auto 32px;
        }
        
        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        
        /* ===== Footer ===== */
        .footer {
            background: var(--bg);
            border-top: 1px solid var(--border);
            padding: 64px 0 28px;
        }
        
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
        }
        
        .footer-brand .brand-icon {
            width: 34px;
            height: 34px;
            font-size: 15px;
            border-radius: 8px;
        }
        
        .footer-desc {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.6;
            max-width: 260px;
        }
        
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 16px;
        }
        
        .footer-col a {
            display: block;
            font-size: 14px;
            color: var(--body);
            padding: 4px 0;
            transition: color var(--transition), padding-left var(--transition);
        }
        
        .footer-col a:hover {
            color: var(--primary);
            padding-left: 6px;
        }
        
        .footer-contact p {
            font-size: 14px;
            color: var(--body);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        
        .footer-contact i {
            color: var(--primary);
            width: 18px;
            text-align: center;
        }
        
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 24px;
            text-align: center;
            font-size: 13px;
            color: var(--muted);
        }
        
        .footer-bottom a {
            color: var(--body);
        }
        
        .footer-bottom a:hover {
            color: var(--primary);
        }
        
        /* ===== Float CTA ===== */
        .float-cta {
            position: fixed;
            right: 24px;
            bottom: 24px;
            z-index: 99;
            display: flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            border: 2px solid var(--primary);
            color: var(--primary);
            padding: 12px 20px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            box-shadow: 0 4px 16px rgba(22, 40, 60, 0.12);
            transition: all var(--transition);
            opacity: 0;
            visibility: hidden;
            transform: translateY(16px);
            text-decoration: none;
        }
        
        .float-cta.visible {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        
        .float-cta:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        
        .float-cta i {
            font-size: 18px;
        }
        
        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .main-nav {
                display: none;
            }
            
            .header-actions .header-cta {
                display: none;
            }
            
            .hamburger {
                display: flex;
            }
            
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        
        @media (max-width: 640px) {
            .site-header {
                height: 60px;
            }
            
            .brand {
                font-size: 18px;
            }
            
            .brand-icon {
                width: 32px;
                height: 32px;
                font-size: 15px;
            }
            
            .article-card {
                padding: 24px;
            }
            
            .article-header h1 {
                font-size: 24px;
            }
            
            .article-gallery {
                grid-template-columns: 1fr;
            }
            
            .related-grid {
                grid-template-columns: 1fr;
            }
            
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            
            .cta-section {
                padding: 48px 0;
            }
            
            .cta-section h2 {
                font-size: 24px;
            }
            
            .cta-actions {
                flex-direction: column;
                align-items: center;
            }
            
            .cta-actions .btn {
                width: 100%;
                max-width: 280px;
            }
            
            .float-cta {
                right: 16px;
                bottom: 16px;
                padding: 10px 16px;
                font-size: 13px;
            }
            
            .article-content p {
                font-size: 15px;
            }
        }
        
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            
            .breadcrumb-wrap {
                padding-top: 20px;
            }
            
            .article-meta {
                gap: 10px;
            }
            
            .article-meta .separator {
                display: none;
            }
        }

/* roulang page: category1 */
:root{
  --primary:#2B6CB0;
  --primary-dark:#1E4E82;
  --primary-light:#EBF3FA;
  --secondary:#D97706;
  --secondary-dark:#B45309;
  --bg:#F6F8FB;
  --card:#FFFFFF;
  --heading:#16283C;
  --text:#3D4C5E;
  --subtext:#748499;
  --placeholder:#A0AEC0;
  --border:#E2E8F0;
  --shadow:0 2px 8px rgba(22,40,60,0.06);
  --shadow-hover:0 8px 24px rgba(22,40,60,0.12);
  --radius:12px;
  --radius-sm:8px;
  --radius-pill:999px;
  --ease:all .25s ease;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;line-height:1.7;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;
}
a{color:var(--primary);text-decoration:none;transition:var(--ease)}
a:hover{color:var(--primary-dark)}
img{max-width:100%;display:block}
button{font-family:inherit}
.grid-container{max-width:1200px}
::selection{background:rgba(43,108,176,.15)}

/* ===== Header / Nav ===== */
.site-header{
  position:sticky;top:0;z-index:100;background:#fff;border-bottom:1px solid var(--border);
  box-shadow:0 1px 10px rgba(22,40,60,.04);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px;
}
.brand{
  display:flex;align-items:center;gap:10px;font-size:22px;font-weight:800;color:var(--heading);
  letter-spacing:.5px;white-space:nowrap;
}
.brand:hover{color:var(--heading)}
.brand-icon{width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;font-size:16px;flex-shrink:0}
.main-nav{display:flex;align-items:center;gap:4px}
.nav-link{
  display:inline-flex;align-items:center;height:44px;padding:0 14px;font-size:15px;font-weight:500;
  color:var(--text);border-radius:var(--radius-sm);position:relative;white-space:nowrap;
}
.nav-link:hover{color:var(--primary);background:var(--primary-light)}
.nav-link.active{color:var(--primary);font-weight:700}
.nav-link.active::after{content:'';position:absolute;left:14px;right:14px;bottom:0;height:2px;background:var(--primary);border-radius:2px}
.nav-right{display:flex;align-items:center;gap:12px}
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;background:var(--primary);color:#fff;
  border:1px solid var(--primary);border-radius:var(--radius-sm);padding:10px 24px;font-size:15px;font-weight:600;
  cursor:pointer;transition:var(--ease);line-height:1.4;
}
.btn-primary:hover{background:var(--primary-dark);border-color:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.btn-primary:focus{outline:3px solid rgba(43,108,176,.3);outline-offset:2px}
.btn-secondary{
  display:inline-flex;align-items:center;justify-content:center;background:#fff;color:var(--primary);
  border:1px solid var(--primary);border-radius:var(--radius-sm);padding:10px 24px;font-size:15px;font-weight:600;
  cursor:pointer;transition:var(--ease);line-height:1.4;
}
.btn-secondary:hover{background:var(--primary-light);color:var(--primary-dark);transform:translateY(-2px);box-shadow:var(--shadow)}
.btn-gold{
  display:inline-flex;align-items:center;justify-content:center;background:var(--secondary);color:#fff;
  border:1px solid var(--secondary);border-radius:var(--radius-sm);padding:12px 28px;font-size:15px;font-weight:600;
  cursor:pointer;transition:var(--ease);
}
.btn-gold:hover{background:var(--secondary-dark);border-color:var(--secondary-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.btn-sm{padding:8px 18px;font-size:14px}
.mega-wrap{position:relative}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;background:transparent;border:1px solid var(--border);
  border-radius:var(--radius-pill);padding:8px 18px;font-size:14px;font-weight:500;color:var(--text);cursor:pointer;transition:var(--ease);
}
.mega-trigger:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-light)}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 12px);width:520px;background:#fff;border-radius:var(--radius);
  box-shadow:0 12px 32px rgba(22,40,60,.12);border:1px solid var(--border);padding:24px;display:none;z-index:200;
}
.mega-wrap.open .mega-panel,.mega-wrap:hover .mega-panel,.mega-wrap:focus-within .mega-panel{display:block;animation:panelIn .2s ease}
@keyframes panelIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}
.mega-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.mega-col h5{font-size:14px;font-weight:700;color:var(--heading);margin-bottom:12px;padding-bottom:8px;border-bottom:1px solid var(--border)}
.mega-col a{display:block;padding:7px 10px;border-radius:6px;font-size:14px;color:var(--text);margin-bottom:4px}
.mega-col a:hover{background:var(--primary-light);color:var(--primary)}
.mega-col .mega-date{font-size:12px;color:var(--placeholder);display:block;padding-left:10px;margin-top:-4px;margin-bottom:8px}
.nav-toggle{display:none;background:none;border:none;width:44px;height:44px;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--heading);border-radius:2px;transition:var(--ease)}
.nav-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.active span:nth-child(2){opacity:0}
.nav-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ===== Breadcrumb ===== */
.breadcrumb{
  padding:18px 0 0;font-size:13px;color:var(--subtext);
}
.breadcrumb a{color:var(--subtext)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb span{margin:0 8px;color:var(--placeholder)}

/* ===== Page Hero ===== */
.page-hero{
  padding:40px 0 56px;
  background:linear-gradient(125deg,rgba(255,255,255,.94) 20%,rgba(235,243,250,.88) 70%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--border);
}
.hero-split{display:flex;align-items:center;gap:48px;padding-top:28px}
.hero-content{flex:1}
.hero-content h1{font-size:34px;font-weight:800;color:var(--heading);line-height:1.3;letter-spacing:.5px;margin-bottom:16px}
.hero-content p{font-size:16px;line-height:1.8;color:var(--text);margin-bottom:28px;max-width:600px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-media{flex:0 0 420px}
.hero-media img{width:100%;height:auto;border-radius:var(--radius);box-shadow:0 8px 32px rgba(22,40,60,.1);border:4px solid #fff}
.hero-badges{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}
.hero-badge{display:inline-flex;align-items:center;gap:6px;background:#fff;border:1px solid var(--border);border-radius:var(--radius-pill);padding:6px 14px;font-size:13px;color:var(--subtext);box-shadow:var(--shadow)}
.hero-badge i{color:var(--primary)}
.hero-badge strong{color:var(--heading)}

/* ===== Section base ===== */
.section{padding:72px 0}
.section-alt{background:#fff}
.section-head{text-align:center;max-width:760px;margin:0 auto 48px}
.section-head h2{font-size:28px;font-weight:800;color:var(--heading);line-height:1.4;margin-bottom:12px}
.section-head p{font-size:15px;color:var(--subtext);line-height:1.7}
.eyebrow{
  display:inline-flex;align-items:center;gap:6px;background:var(--primary-light);color:var(--primary);
  border-radius:var(--radius-pill);padding:6px 16px;font-size:13px;font-weight:600;margin-bottom:16px;
}

/* ===== Process ===== */
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.process-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:32px 24px;position:relative;
  transition:var(--ease);box-shadow:var(--shadow);text-align:center;
}
.process-item::before{content:'';position:absolute;top:0;left:24px;right:24px;height:3px;background:var(--primary);border-radius:0 0 3px 3px;transform:scaleX(0);transform-origin:left;transition:transform .3s ease}
.process-item:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px)}
.process-item:hover::before{transform:scaleX(1)}
.process-num{
  width:52px;height:52px;margin:0 auto 16px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:#fff;font-size:18px;font-weight:800;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 14px rgba(43,108,176,.3);
}
.process-item h3{font-size:17px;font-weight:700;color:var(--heading);margin-bottom:8px}
.process-item p{font-size:14px;color:var(--subtext);line-height:1.6;margin-bottom:0}

/* ===== Split Blocks ===== */
.split-block{display:flex;align-items:center;gap:56px}
.split-block + .split-block{margin-top:72px}
.split-media{flex:0 0 46%;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);position:relative}
.split-media img{width:100%;height:auto;transition:transform .3s ease}
.split-media:hover img{transform:scale(1.02)}
.split-text{flex:1}
.split-text h3{font-size:22px;font-weight:700;color:var(--heading);margin-bottom:12px}
.split-text p{font-size:15px;line-height:1.8;color:var(--text);margin-bottom:18px}
.check-list{list-style:none;padding:0;margin:0}
.check-list li{
  display:flex;align-items:flex-start;gap:10px;padding:7px 0;font-size:15px;color:var(--text);
}
.check-list li i{color:var(--secondary);font-size:15px;margin-top:5px;flex-shrink:0}
.check-list li strong{color:var(--heading);font-weight:600}

/* ===== Pricing ===== */
.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.price-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:36px 28px;position:relative;
  transition:var(--ease);box-shadow:var(--shadow);display:flex;flex-direction:column;
}
.price-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px)}
.price-card.highlight{
  border:2px solid var(--primary);box-shadow:0 8px 32px rgba(43,108,176,.15);padding:44px 30px;
}
.price-badge{
  position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:var(--secondary);color:#fff;
  font-size:12px;font-weight:700;padding:5px 18px;border-radius:var(--radius-pill);box-shadow:0 4px 12px rgba(217,119,6,.3);white-space:nowrap;
}
.price-card h3{font-size:20px;font-weight:700;color:var(--heading);margin-bottom:6px}
.price-sub{font-size:13px;color:var(--placeholder);margin-bottom:20px}
.price-amount{display:flex;align-items:baseline;gap:4px;margin-bottom:24px;padding-bottom:24px;border-bottom:1px solid var(--border)}
.price-amount .cur{font-size:18px;font-weight:600;color:var(--heading)}
.price-amount .num{font-size:44px;font-weight:800;color:var(--heading);line-height:1}
.price-amount .unit{font-size:14px;color:var(--subtext)}
.price-list{list-style:none;padding:0;margin:0 0 28px;flex:1}
.price-list li{
  display:flex;align-items:flex-start;gap:10px;padding:6px 0;font-size:14px;color:var(--text);
}
.price-list li i{color:var(--primary);font-size:13px;margin-top:6px;flex-shrink:0}
.price-list li.off{color:var(--placeholder)}
.price-list li.off i{color:var(--placeholder)}

/* ===== FAQ ===== */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);margin-bottom:14px;overflow:hidden;
  transition:var(--ease);
}
.faq-item:hover{border-color:#c8d6e5}
.faq-item.active{border-color:var(--primary);box-shadow:var(--shadow)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 24px;cursor:pointer;
  font-size:16px;font-weight:700;color:var(--heading);user-select:none;background:#fff;
}
.faq-q .faq-icon{
  width:28px;height:28px;border-radius:50%;background:var(--primary-light);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:13px;flex-shrink:0;transition:var(--ease);
}
.faq-item.active .faq-icon{background:var(--primary);color:#fff;transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-item.active .faq-a{max-height:400px}
.faq-a-inner{padding:0 24px 22px;font-size:14px;line-height:1.8;color:var(--text)}

/* ===== CTA ===== */
.cta-section{padding:80px 0;background:linear-gradient(135deg,#F1F7FC 0%,#E9F2FA 100%);border-top:1px solid var(--border)}
.cta-panel{
  text-align:center;max-width:720px;margin:0 auto;background:#fff;border-radius:20px;padding:56px 40px;
  box-shadow:0 8px 40px rgba(22,40,60,.08);border:1px solid var(--border);position:relative;overflow:hidden;
}
.cta-panel::before{
  content:'';position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--primary),var(--secondary),var(--primary));background-size:200% 100%;animation:gradientMove 4s linear infinite;
}
@keyframes gradientMove{0%{background-position:0 0}100%{background-position:200% 0}}
.cta-panel h2{font-size:28px;font-weight:800;color:var(--heading);margin-bottom:12px}
.cta-panel p{font-size:15px;color:var(--subtext);margin-bottom:28px}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ===== Footer ===== */
.footer{background:#fff;border-top:1px solid var(--border);padding:56px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:2.2fr 1fr 1fr 1.4fr;gap:40px;padding-bottom:36px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;color:var(--heading);margin-bottom:12px}
.footer-brand .brand-icon{width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px}
.footer-desc{font-size:14px;line-height:1.7;color:var(--subtext);max-width:280px}
.footer-col h4{font-size:15px;font-weight:700;color:var(--heading);margin-bottom:16px}
.footer-col a{display:block;padding:5px 0;font-size:14px;color:var(--text)}
.footer-col a:hover{color:var(--primary);padding-left:4px}
.footer-contact p{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text);padding:5px 0}
.footer-contact i{color:var(--primary);width:16px;text-align:center}
.footer-bottom{
  border-top:1px solid var(--border);padding:18px 0 22px;text-align:center;font-size:13px;color:var(--subtext);
}
.footer-bottom a{color:var(--subtext)}
.footer-bottom a:hover{color:var(--primary)}

/* ===== Float CTA ===== */
.float-cta{
  position:fixed;right:24px;bottom:32px;z-index:90;display:none;align-items:center;gap:8px;
  background:#fff;color:var(--primary);border:1px solid var(--primary);border-radius:var(--radius-pill);
  padding:12px 22px;font-size:14px;font-weight:600;box-shadow:0 4px 20px rgba(43,108,176,.2);cursor:pointer;transition:var(--ease);
}
.float-cta:hover{background:var(--primary);color:#fff;transform:translateY(-2px)}
.float-cta.show{display:inline-flex}
.float-cta i{font-size:18px}

/* ===== Responsive ===== */
@media (max-width:1023px){
  .hero-split{flex-direction:column;gap:28px}
  .hero-media{flex:0 0 auto;width:100%}
  .process-grid{grid-template-columns:repeat(2,1fr)}
  .pricing-grid{grid-template-columns:1fr;max-width:480px;margin:0 auto}
  .price-card.highlight{padding:36px 28px}
  .split-block{flex-direction:column;gap:28px}
  .split-block:nth-of-type(even){flex-direction:column}
  .split-media{flex:0 0 auto;width:100%}
  .footer-grid{grid-template-columns:1fr 1fr}
  .header-inner{height:auto;flex-wrap:wrap;padding:12px 0}
  .main-nav{
    display:none;width:100%;flex-direction:column;align-items:stretch;background:#fff;padding:8px 0 16px;gap:2px;
  }
  .main-nav.nav-open{display:flex}
  .nav-link{padding:12px 10px;justify-content:flex-start}
  .nav-link.active::after{display:none}
  .nav-link.active{background:var(--primary-light)}
  .nav-right{gap:8px}
  .nav-toggle{display:flex}
  .mega-panel{position:fixed;left:16px;right:16px;top:auto;width:auto;max-width:520px}
}
@media (max-width:639px){
  .section{padding:48px 0}
  .page-hero{padding:24px 0 40px}
  .hero-content h1{font-size:26px}
  .hero-actions .btn-primary,.hero-actions .btn-secondary{width:100%}
  .process-grid{grid-template-columns:1fr}
  .section-head h2{font-size:24px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-desc{max-width:none}
  .cta-panel{padding:40px 24px}
  .cta-actions .btn-primary,.cta-actions .btn-secondary,.cta-actions .btn-gold{width:100%}
  .mega-panel{position:fixed;left:12px;right:12px;top:auto}
  .mega-grid{grid-template-columns:1fr;gap:16px}
  .float-cta{right:16px;bottom:20px;padding:10px 18px}
  .brand{font-size:18px}
  .brand-icon{width:32px;height:32px;font-size:14px}
}

/* roulang page: category2 */
:root{
  --primary:#2B6CB0; --primary-deep:#1E4E82; --primary-light:#EBF3FA;
  --secondary:#D97706; --secondary-deep:#B45309;
  --bg:#F6F8FB; --white:#FFFFFF; --bg-alt:#EEF2F7;
  --title:#16283C; --text:#3D4C5E; --sub:#748499; --placeholder:#A0AEC0;
  --border:#E2E8F0; --success:#2F855A; --danger:#C53030;
  --radius-lg:12px; --radius-md:8px; --radius-pill:999px;
  --shadow-sm:0 2px 8px rgba(22,40,60,0.06);
  --shadow-md:0 8px 24px rgba(22,40,60,0.12);
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{font-family:var(--font);background:var(--bg);color:var(--text);font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit;transition:color .2s ease}
img{max-width:100%;display:block}
button{font-family:inherit;cursor:pointer}
ul{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.section{padding:80px 0}
.section-alt{background:var(--white)}
.section-head{text-align:center;max-width:720px;margin:0 auto 52px}
.section-tag{display:inline-block;background:var(--primary-light);color:var(--primary);font-size:13px;font-weight:600;padding:4px 16px;border-radius:var(--radius-pill);margin-bottom:14px;letter-spacing:.3px}
.section-head h2{font-size:28px;font-weight:700;color:var(--title);line-height:1.4;letter-spacing:.5px}
.section-head p{font-size:15px;color:var(--sub);margin-top:12px}
/* Header */
.site-header{position:sticky;top:0;z-index:100;background:var(--white);border-bottom:1px solid var(--border);transition:box-shadow .2s ease}
.site-header.scrolled{box-shadow:0 4px 16px rgba(22,40,60,0.08)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px;position:relative}
.logo{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:700;color:var(--title);letter-spacing:.5px;white-space:nowrap}
.brand-icon{width:40px;height:40px;background:linear-gradient(135deg,var(--primary),var(--primary-deep));border-radius:10px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px;flex-shrink:0}
.main-nav{display:flex;align-items:center;gap:2px;flex:1;justify-content:center;flex-wrap:nowrap}
.nav-link{font-size:14px;font-weight:500;color:var(--text);padding:10px 12px;border-radius:6px;white-space:nowrap;position:relative}
.nav-link::after{content:'';position:absolute;left:12px;right:12px;bottom:4px;height:2px;background:var(--primary);border-radius:2px;transform:scaleX(0);transition:transform .2s ease}
.nav-link:hover{color:var(--primary);background:var(--primary-light)}
.nav-link.active{color:var(--primary);font-weight:600}
.nav-link.active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.mega-wrap{position:relative}
.mega-btn{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-md);padding:8px 14px;font-size:14px;font-weight:500;color:var(--text);display:flex;align-items:center;gap:6px;transition:all .2s ease}
.mega-btn:hover{background:var(--primary-light);border-color:var(--primary);color:var(--primary)}
.mega-panel{position:absolute;top:calc(100% + 12px);right:0;background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);padding:24px;width:420px;opacity:0;visibility:hidden;transform:translateY(8px);transition:all .25s ease;z-index:200}
.mega-wrap:hover .mega-panel,.mega-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.mega-col h4{font-size:13px;font-weight:700;color:var(--title);margin-bottom:14px;letter-spacing:.5px;text-transform:uppercase}
.mega-link{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:8px;font-size:14px;color:var(--text);transition:all .2s ease;margin-bottom:4px}
.mega-link i{color:var(--primary);width:18px;text-align:center}
.mega-link:hover{background:var(--primary-light);color:var(--primary)}
.mega-empty{font-size:13px;color:var(--placeholder);padding:8px 0}
.btn-primary,.btn-secondary,.btn-gold{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:15px;font-weight:600;padding:12px 28px;border-radius:var(--radius-md);border:none;transition:all .2s ease;text-align:center;line-height:1.4}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 2px 8px rgba(43,108,176,0.2)}
.btn-primary:hover{background:var(--primary-deep);transform:translateY(-2px);box-shadow:0 6px 16px rgba(43,108,176,0.3)}
.btn-secondary{background:var(--white);border:1px solid var(--primary);color:var(--primary)}
.btn-secondary:hover{background:var(--primary-light);transform:translateY(-2px)}
.btn-gold{background:var(--secondary);color:#fff;box-shadow:0 2px 8px rgba(217,119,6,0.2)}
.btn-gold:hover{background:var(--secondary-deep);transform:translateY(-2px);box-shadow:0 6px 16px rgba(217,119,6,0.3)}
.btn-sm{padding:8px 18px;font-size:13px}
:focus-visible{outline:3px solid rgba(43,108,176,0.3);outline-offset:2px}
.nav-btn{padding:10px 22px}
.nav-toggle{display:none;background:none;border:none;font-size:24px;color:var(--title);width:44px;height:44px;border-radius:8px;justify-content:center;align-items:center}
.nav-toggle:hover{background:var(--bg)}
/* Breadcrumb */
.breadcrumb{background:var(--white);border-bottom:1px solid var(--border);padding:12px 0;font-size:13px;color:var(--sub)}
.breadcrumb a{color:var(--primary)}
.breadcrumb i{margin:0 8px;font-size:10px;color:var(--placeholder)}
.breadcrumb .current{color:var(--text);font-weight:500}
/* Hero */
.page-hero{position:relative;padding:88px 0 72px;background:linear-gradient(rgba(246,248,251,0.92),rgba(246,248,251,0.85)),url('/assets/images/backpic/back-2.png') center/cover no-repeat;overflow:hidden;border-bottom:1px solid var(--border)}
.page-hero .hero-content{max-width:860px;margin:0 auto;text-align:center}
.hero-badge{display:inline-block;background:rgba(43,108,176,0.1);color:var(--primary);font-size:13px;font-weight:600;padding:6px 18px;border-radius:var(--radius-pill);margin-bottom:20px;letter-spacing:.5px}
.page-hero h1{font-size:36px;font-weight:700;color:var(--title);line-height:1.35;letter-spacing:1px;margin-bottom:16px}
.page-hero .hero-sub{font-size:16px;color:var(--text);max-width:680px;margin:0 auto 28px;line-height:1.8}
.hero-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.hero-metrics{display:flex;justify-content:center;gap:48px;margin-top:48px;flex-wrap:wrap}
.metric{text-align:center}
.metric .num{font-size:30px;font-weight:800;color:var(--title);line-height:1.2}
.metric .label{font-size:13px;color:var(--sub);margin-top:4px}
/* Scene Section */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.scene-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);padding:28px;box-shadow:var(--shadow-sm);position:relative;overflow:hidden;transition:all .25s ease}
.scene-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:var(--primary);transform:scaleX(0);transition:transform .2s ease;transform-origin:left}
.scene-card:hover{box-shadow:var(--shadow-md);transform:translateY(-4px)}
.scene-card:hover::before{transform:scaleX(1)}
.scene-icon{width:48px;height:48px;background:var(--primary-light);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:20px;margin-bottom:18px}
.scene-card h3{font-size:18px;font-weight:600;color:var(--title);margin-bottom:10px;line-height:1.4}
.scene-card p{font-size:14px;color:var(--text);line-height:1.7;margin-bottom:0}
.scene-card .scene-tag{display:inline-block;margin-top:14px;font-size:12px;background:var(--primary-light);color:var(--primary);padding:4px 12px;border-radius:var(--radius-pill);font-weight:500}
/* Flow Section */
.flow-section{background:var(--bg-alt)}
.flow-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:20px}
.step-item{text-align:center;position:relative;padding:0 10px}
.step-num{width:52px;height:52px;background:var(--primary);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:700;margin:0 auto 16px;box-shadow:0 4px 12px rgba(43,108,176,0.25);position:relative;z-index:2}
.step-item:not(:last-child)::after{content:'';position:absolute;top:26px;left:calc(50% + 36px);right:calc(-50% + 10px);height:2px;background:var(--border);z-index:1}
.step-item h4{font-size:16px;font-weight:600;color:var(--title);margin-bottom:8px}
.step-item p{font-size:14px;color:var(--sub);line-height:1.6}
/* Tips Section */
.tips-block{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;margin-bottom:56px}
.tips-block:last-child{margin-bottom:0}
.tips-block.reverse .tips-media{order:2}
.tips-media{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-md)}
.tips-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.tips-media:hover img{transform:scale(1.02)}
.tips-content .tips-kicker{font-size:13px;font-weight:700;color:var(--secondary);text-transform:uppercase;letter-spacing:1px;margin-bottom:8px}
.tips-content h3{font-size:22px;font-weight:700;color:var(--title);line-height:1.4;margin-bottom:14px}
.tips-content p{font-size:15px;color:var(--text);line-height:1.8;margin-bottom:16px}
.tips-list{display:flex;flex-direction:column;gap:10px}
.tips-list li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--text)}
.tips-list li i{color:var(--success);margin-top:4px;font-size:14px;flex-shrink:0}
/* Feedback */
.feedback-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.feedback-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);padding:28px;box-shadow:var(--shadow-sm);transition:all .25s ease;display:flex;flex-direction:column}
.feedback-card:hover{box-shadow:var(--shadow-md);transform:translateY(-4px)}
.feedback-stars{color:#F6AD55;font-size:14px;margin-bottom:14px;letter-spacing:2px}
.feedback-text{font-size:14px;color:var(--text);line-height:1.7;flex:1;margin-bottom:18px}
.feedback-role{display:flex;align-items:center;gap:12px}
.feedback-avatar{width:44px;height:44px;background:var(--primary-light);color:var(--primary);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;flex-shrink:0}
.feedback-role .name{font-size:14px;font-weight:600;color:var(--title)}
.feedback-role .desc{font-size:12px;color:var(--sub)}
.feedback-badge{display:inline-block;margin-top:12px;font-size:12px;background:var(--bg);color:var(--sub);padding:3px 10px;border-radius:var(--radius-pill);align-self:flex-start}
/* FAQ */
.faq-list{max-width:760px;margin:0 auto}
.faq-item{background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);margin-bottom:12px;overflow:hidden;transition:border-color .2s ease}
.faq-item.open{border-color:var(--primary);box-shadow:0 2px 12px rgba(43,108,176,0.08)}
.faq-q{display:flex;align-items:center;gap:14px;padding:20px 24px;cursor:pointer;font-size:16px;font-weight:600;color:var(--title);user-select:none;transition:background .2s ease}
.faq-q:hover{background:var(--primary-light)}
.faq-q .faq-icon{margin-left:auto;width:24px;height:24px;display:flex;align-items:center;justify-content:center;color:var(--primary);transition:transform .3s ease;flex-shrink:0}
.faq-item.open .faq-icon{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease, padding .3s ease;padding:0 24px;font-size:14px;color:var(--text);line-height:1.8;border-top:0 solid var(--border)}
.faq-item.open .faq-a{padding:0 24px 20px;border-top:1px solid var(--border)}
/* CTA */
.cta-section{padding:72px 0;background:linear-gradient(135deg,#EBF3FA 0%,#F8FAFD 50%,#EBF3FA 100%)}
.cta-panel{max-width:820px;margin:0 auto;text-align:center;background:rgba(255,255,255,0.9);border:1px solid var(--border);border-radius:20px;padding:52px 40px;box-shadow:var(--shadow-sm)}
.cta-panel h2{font-size:26px;font-weight:700;color:var(--title);margin-bottom:12px;letter-spacing:.5px}
.cta-panel p{font-size:15px;color:var(--sub);margin-bottom:28px;max-width:560px;margin-left:auto;margin-right:auto}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
/* Float */
.float-cta{position:fixed;bottom:30px;right:30px;z-index:999;width:52px;height:52px;background:var(--white);border:2px solid var(--primary);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:20px;box-shadow:var(--shadow-md);opacity:0;visibility:hidden;transform:translateY(20px);transition:all .3s ease}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta:hover{background:var(--primary);color:#fff}
/* Footer */
.footer{background:var(--white);border-top:1px solid var(--border);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;margin-bottom:40px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:700;color:var(--title);margin-bottom:14px}
.footer-desc{font-size:14px;color:var(--sub);line-height:1.7}
.footer-col h4{font-size:15px;font-weight:600;color:var(--title);margin-bottom:16px;letter-spacing:.3px}
.footer-col a{display:block;font-size:14px;color:var(--text);margin-bottom:10px;transition:all .2s ease}
.footer-col a:hover{color:var(--primary);padding-left:4px}
.footer-contact p{font-size:14px;color:var(--text);margin-bottom:10px;display:flex;align-items:center;gap:8px}
.footer-contact i{color:var(--primary);width:16px}
.footer-bottom{border-top:1px solid var(--border);padding:20px 0;text-align:center;font-size:13px;color:var(--sub)}
.footer-bottom a{color:var(--primary)}
/* Responsive */
@media (max-width:1024px){
  .main-nav{display:none;position:absolute;top:72px;left:0;right:0;background:var(--white);border-bottom:1px solid var(--border);flex-direction:column;padding:16px 20px;gap:4px;box-shadow:var(--shadow-md);align-items:flex-start}
  .main-nav.open{display:flex}
  .nav-link{width:100%;padding:12px 14px}
  .nav-link::after{display:none}
  .nav-toggle{display:flex}
  .site-header .header-inner{height:64px}
  .mega-panel{width:340px}
  .scene-grid{grid-template-columns:1fr 1fr}
  .flow-steps{grid-template-columns:1fr 1fr;gap:36px 20px}
  .step-item:not(:last-child)::after{display:none}
  .feedback-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .section{padding:48px 0}
  .nav-actions{display:none}
  .section-head h2{font-size:24px}
  .page-hero{padding:60px 0 48px}
  .page-hero h1{font-size:28px}
  .page-hero .hero-sub{font-size:15px}
  .hero-metrics{gap:24px}
  .scene-grid{grid-template-columns:1fr}
  .tips-block,.tips-block.reverse{grid-template-columns:1fr;gap:24px}
  .tips-block.reverse .tips-media{order:0}
  .feedback-grid{grid-template-columns:1fr}
  .cta-panel{padding:36px 20px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .mega-panel{width:280px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .hero-actions{flex-direction:column;align-items:center}
  .btn-primary,.btn-secondary,.btn-gold{width:100%;max-width:280px}
  .hero-metrics{gap:16px}
  .metric .num{font-size:24px}
  .footer-grid{grid-template-columns:1fr}
  .float-cta{bottom:20px;right:20px;width:48px;height:48px;font-size:18px}
}