/* roulang page: index */
:root {
  --brand-primary: #1e3a5f;
  --brand-secondary: #3b82f6;
  --brand-accent: #f59e0b;
  --bg-light: #f8fafc;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --border-light: #e2e8f0;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-card: 0 4px 24px rgba(15, 23, 42, 0.06);
  --shadow-hover: 0 12px 40px rgba(15, 23, 42, 0.12);
  --transition-base: all 0.3s ease;
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  line-height: 1.7;
  color: var(--text-primary);
  background: var(--bg-light);
  -webkit-font-smoothing: antialiased;
}
a {
  text-decoration: none;
  color: inherit;
}
img {
  max-width: 100%;
  display: block;
}
button, input {
  font-family: inherit;
  outline: none;
}
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}
/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}
.logo-text {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--brand-primary);
  white-space: nowrap;
  line-height: 1;
}
.logo-text .highlight {
  color: var(--brand-accent);
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: 16px;
}
.nav-link {
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition-base);
  position: relative;
}
.nav-link:hover {
  color: var(--brand-secondary);
  background: rgba(59, 130, 246, 0.08);
}
.nav-link.active {
  color: var(--brand-secondary);
  background: rgba(59, 130, 246, 0.1);
  font-weight: 600;
}
.search-wrap {
  flex: 0 1 260px;
  position: relative;
}
.search-wrap input {
  width: 100%;
  height: 40px;
  background: #f1f5f9;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 0 16px 0 38px;
  font-size: 13px;
  transition: var(--transition-base);
  color: var(--text-primary);
}
.search-wrap input::placeholder {
  color: var(--text-muted);
}
.search-wrap input:focus {
  background: #fff;
  border-color: var(--brand-secondary);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.12);
}
.search-wrap .search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 14px;
  pointer-events: none;
}
.header-cta {
  display: flex;
  align-items: center;
  gap: 12px;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--brand-secondary);
  color: #fff;
  border-radius: 999px;
  padding: 10px 24px;
  font-size: 14px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: var(--transition-base);
  box-shadow: 0 2px 8px rgba(59,130,246,0.3);
}
.btn-primary:hover {
  background: var(--brand-primary);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(37,99,235,0.35);
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(37,99,235,0.3);
}
.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: var(--brand-secondary);
  border: 2px solid var(--brand-secondary);
  border-radius: 999px;
  padding: 8px 22px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-base);
}
.btn-outline:hover {
  background: var(--brand-secondary);
  color: #fff;
}
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
}
.menu-toggle:hover {
  background: #f1f5f9;
}
/* Hero */
.hero-section {
  position: relative;
  background: url('/assets/images/backpic/back-1.png') center center/cover no-repeat;
  padding: 120px 0 100px;
  overflow: hidden;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15,23,42,0.88) 0%, rgba(30,58,95,0.72) 60%, rgba(59,130,246,0.45) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 780px;
  margin: 0 auto;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.25);
  color: #fff;
  padding: 6px 18px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.3px;
  margin-bottom: 24px;
  backdrop-filter: blur(8px);
}
.hero-title {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.2;
  color: #fff;
  letter-spacing: -1px;
  margin-bottom: 20px;
}
.hero-title .accent {
  color: var(--brand-accent);
}
.hero-subtitle {
  font-size: 17px;
  color: rgba(255,255,255,0.8);
  line-height: 1.8;
  margin-bottom: 36px;
  max-width: 620px;
  margin-left: auto;
  margin-right: auto;
}
.hero-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.hero-actions .btn-primary {
  background: var(--brand-accent);
  box-shadow: 0 4px 20px rgba(245,158,11,0.4);
}
.hero-actions .btn-primary:hover {
  background: #d97706;
}
.hero-actions .btn-outline {
  border-color: rgba(255,255,255,0.7);
  color: #fff;
}
.hero-actions .btn-outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: #fff;
}
.hero-metrics {
  display: flex;
  justify-content: center;
  gap: 48px;
  margin-top: 56px;
  flex-wrap: wrap;
}
.metric-item {
  text-align: center;
}
.metric-item .num {
  font-size: 32px;
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
}
.metric-item .label {
  font-size: 13px;
  color: rgba(255,255,255,0.7);
  margin-top: 4px;
}
/* Section base */
.section {
  padding: 80px 0;
}
.section-alt {
  background: #fff;
}
.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 48px;
}
.section-tag {
  display: inline-block;
  background: rgba(59,130,246,0.1);
  color: var(--brand-secondary);
  padding: 4px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
}
.section-title {
  font-size: 32px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
  letter-spacing: -0.5px;
  margin-bottom: 12px;
}
.section-subtitle {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
}
/* Features */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.feature-card {
  background: #fff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: var(--transition-base);
  position: relative;
  overflow: hidden;
}
.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(59,130,246,0.3);
}
.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--brand-secondary), #60a5fa);
  color: #fff;
  font-size: 22px;
  margin-bottom: 20px;
  box-shadow: 0 4px 16px rgba(59,130,246,0.3);
}
.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-primary);
}
.feature-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}
/* Category */
.category-section {
  background: linear-gradient(135deg, #f0f4ff 0%, #f8fafc 100%);
  padding: 80px 0;
}
.category-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.category-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-light);
  transition: var(--transition-base);
  display: block;
  position: relative;
}
.category-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}
.category-card-img {
  height: 220px;
  overflow: hidden;
  position: relative;
}
.category-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.category-card:hover .category-card-img img {
  transform: scale(1.05);
}
.category-card-body {
  padding: 24px;
}
.category-card-body h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
}
.category-card-body p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 14px;
}
.category-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--brand-secondary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition-base);
}
.category-link:hover {
  gap: 10px;
  color: var(--brand-primary);
}
/* News */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.news-card {
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  overflow: hidden;
  transition: var(--transition-base);
  display: flex;
  flex-direction: column;
}
.news-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}
.news-card-thumb {
  height: 180px;
  overflow: hidden;
  background: #e2e8f0;
}
.news-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.news-card-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.news-card-body .badge {
  display: inline-block;
  background: rgba(59,130,246,0.1);
  color: var(--brand-secondary);
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 12px;
  align-self: flex-start;
}
.news-card-body h3 {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 10px;
  color: var(--text-primary);
  transition: var(--transition-base);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card:hover .news-card-body h3 {
  color: var(--brand-secondary);
}
.news-card-body p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border-light);
  padding-top: 16px;
}
.news-card-footer time {
  font-size: 12px;
  color: var(--text-muted);
}
.news-card-footer .more-link {
  font-size: 13px;
  color: var(--brand-secondary);
  font-weight: 600;
  transition: var(--transition-base);
}
.news-card-footer .more-link:hover {
  color: var(--brand-primary);
}
.news-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 0;
  color: var(--text-muted);
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px dashed var(--border-light);
  font-size: 15px;
}
/* Stats */
.stats-section {
  background: var(--brand-primary);
  padding: 70px 0;
  position: relative;
  overflow: hidden;
}
.stats-section::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 300px;
  height: 300px;
  background: rgba(59,130,246,0.3);
  border-radius: 50%;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  position: relative;
  z-index: 1;
}
.stat-item {
  text-align: center;
  padding: 24px 16px;
}
.stat-item .num {
  font-size: 42px;
  font-weight: 800;
  color: var(--brand-accent);
  line-height: 1.2;
  margin-bottom: 8px;
}
.stat-item .label {
  font-size: 14px;
  color: rgba(255,255,255,0.75);
}
/* Steps */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 36px;
  counter-reset: step;
}
.step-item {
  position: relative;
  text-align: center;
  padding: 32px 20px;
}
.step-number {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand-secondary), #60a5fa);
  color: #fff;
  font-size: 22px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  box-shadow: 0 4px 16px rgba(59,130,246,0.3);
}
.step-item h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 10px;
}
.step-item p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}
.step-arrow {
  position: absolute;
  top: 50%;
  right: -18px;
  transform: translateY(-50%);
  color: #cbd5e1;
  font-size: 20px;
  z-index: 2;
}
/* FAQ */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
}
.faq-item {
  background: #fff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  transition: var(--transition-base);
}
.faq-item:hover {
  border-color: rgba(59,130,246,0.3);
}
.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 28px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  list-style: none;
  transition: var(--transition-base);
}
.faq-item summary::-webkit-details-marker {
  display: none;
}
.faq-item summary::after {
  content: '+';
  font-size: 22px;
  color: var(--brand-secondary);
  font-weight: 400;
  transition: var(--transition-base);
}
.faq-item[open] summary::after {
  transform: rotate(45deg);
}
.faq-item[open] summary {
  color: var(--brand-secondary);
}
.faq-answer {
  padding: 0 28px 22px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
}
/* CTA */
.cta-section {
  background: url('/assets/images/backpic/back-2.png') center center/cover no-repeat;
  padding: 100px 0;
  position: relative;
}
.cta-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15,23,42,0.9) 0%, rgba(30,58,95,0.8) 100%);
}
.cta-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 650px;
  margin: 0 auto;
}
.cta-content h2 {
  font-size: 36px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
  line-height: 1.3;
}
.cta-content p {
  font-size: 16px;
  color: rgba(255,255,255,0.8);
  line-height: 1.7;
  margin-bottom: 32px;
}
/* Footer */
.site-footer {
  background: #0f172a;
  color: rgba(255,255,255,0.7);
  padding: 60px 0 32px;
}
.footer-content {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  margin-bottom: 32px;
}
.footer-brand .logo-text {
  font-size: 22px;
  margin-bottom: 12px;
  color: #fff;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  max-width: 320px;
}
.footer-col h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
}
.footer-col ul {
  list-style: none;
}
.footer-col ul li {
  margin-bottom: 10px;
}
.footer-col ul a {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  transition: var(--transition-base);
}
.footer-col ul a:hover {
  color: #fff;
}
.footer-bottom {
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}
.footer-bottom a {
  color: rgba(255,255,255,0.5);
  transition: var(--transition-base);
}
.footer-bottom a:hover {
  color: #fff;
}
/* Responsive */
@media (max-width: 1024px) {
  .feature-grid,
  .news-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .search-wrap {
    display: none;
  }
}
@media (max-width: 768px) {
  .header-inner {
    height: 64px;
  }
  .main-nav {
    display: none;
  }
  .menu-toggle {
    display: flex;
  }
  .header-cta .btn-primary {
    display: none;
  }
  .hero-section {
    padding: 80px 0 60px;
  }
  .hero-title {
    font-size: 32px;
  }
  .hero-subtitle {
    font-size: 15px;
  }
  .hero-metrics {
    gap: 24px;
  }
  .section {
    padding: 60px 0;
  }
  .section-title {
    font-size: 26px;
  }
  .feature-grid {
    grid-template-columns: 1fr;
  }
  .category-grid {
    grid-template-columns: 1fr;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .steps-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .step-arrow {
    display: none;
  }
  .footer-content {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .news-grid {
    grid-template-columns: 1fr;
  }
  .cta-section {
    padding: 70px 0;
  }
  .cta-content h2 {
    font-size: 26px;
  }
}
@media (max-width: 520px) {
  .header-inner {
    gap: 12px;
  }
  .logo-text {
    font-size: 18px;
  }
  .btn-primary {
    padding: 8px 16px;
    font-size: 13px;
  }
  .hero-actions {
    flex-direction: column;
    align-items: center;
  }
  .hero-actions .btn-primary,
  .hero-actions .btn-outline {
    width: 100%;
    max-width: 260px;
  }
  .stats-grid {
    gap: 16px;
  }
  .stat-item .num {
    font-size: 28px;
  }
}
/* Mobile menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  background: #fff;
  padding: 20px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.1);
  border-radius: 0 0 16px 16px;
  z-index: 99;
}
.mobile-menu.open {
  display: block;
}
.mobile-menu a {
  display: block;
  padding: 14px 20px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-primary);
  transition: var(--transition-base);
}
.mobile-menu a:hover,
.mobile-menu a.active {
  background: rgba(59,130,246,0.08);
  color: var(--brand-secondary);
}

/* roulang page: article */
:root {
  --primary: #1e3a5f;
  --primary-dark: #132b46;
  --accent: #d4a24e;
  --accent-dark: #b8893a;
  --bg-body: #f5f7fa;
  --bg-card: #ffffff;
  --text-main: #1e293b;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 10px rgba(30, 58, 95, 0.06);
  --shadow: 0 8px 28px rgba(30, 58, 95, 0.08);
  --shadow-lg: 0 20px 50px rgba(30, 58, 95, 0.15);
  --container: 1200px;
  --header-h: 72px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: ui-sans-serif, system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
  background: var(--bg-body);
  color: var(--text-main);
  line-height: 1.7;
  font-size: 16px;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  height: var(--header-h);
}
.site-header .container { display: flex; align-items: center; height: 100%; gap: 28px; }
.logo { font-size: 22px; font-weight: 800; color: var(--primary); display: flex; align-items: center; gap: 4px; white-space: nowrap; }
.logo .highlight { color: var(--accent); }
.main-nav { display: flex; align-items: center; gap: 8px; flex: 1; }
.nav-link {
  padding: 8px 16px; border-radius: 999px; font-size: 14px; font-weight: 600;
  color: var(--text-muted); transition: all 0.2s ease;
}
.nav-link:hover { color: var(--primary); background: rgba(30,58,95,0.06); }
.nav-link.active { color: var(--primary); background: rgba(30,58,95,0.10); }
.header-actions { display: flex; align-items: center; gap: 12px; }
.search-box {
  display: flex; align-items: center; background: var(--bg-body);
  border: 1px solid var(--border); border-radius: 999px; padding: 6px 14px; gap: 8px;
  transition: border-color 0.2s, box-shadow 0.2s; width: 200px;
}
.search-box input { border: none; outline: none; background: transparent; font-size: 13px; color: var(--text-main); width: 100%; }
.search-box:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(212,162,78,0.15); }
.btn-primary {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  background: var(--primary); color: #fff; border-radius: 999px; padding: 9px 20px;
  font-size: 14px; font-weight: 600; transition: all 0.25s ease; white-space: nowrap;
}
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: var(--shadow); }
.btn-accent {
  background: var(--accent); color: #fff;
}
.btn-accent:hover { background: var(--accent-dark); }
.btn-ghost {
  background: transparent; border: 1px solid var(--border); color: var(--text-main);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.mobile-toggle { display: none; flex-direction: column; gap: 5px; width: 40px; height: 40px; align-items: center; justify-content: center; background: transparent; border: 1px solid var(--border); border-radius: 10px; }
.mobile-toggle span { display: block; width: 18px; height: 2px; background: var(--text-main); border-radius: 2px; transition: all 0.3s; }
.article-hero {
  position: relative; background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  min-height: 380px; display: flex; align-items: center;
}
.article-hero::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(115deg, rgba(19,43,70,0.94) 0%, rgba(19,43,70,0.78) 45%, rgba(30,58,95,0.55) 100%);
}
.article-hero .container { position: relative; z-index: 2; padding: 64px 24px; }
.breadcrumb { display: flex; align-items: center; gap: 8px; color: rgba(255,255,255,0.7); font-size: 13px; margin-bottom: 20px; }
.breadcrumb a { color: rgba(255,255,255,0.85); } .breadcrumb a:hover { color: var(--accent); }
.article-hero h1 { color: #fff; font-size: clamp(30px, 4vw, 48px); line-height: 1.2; font-weight: 800; max-width: 800px; margin-bottom: 16px; letter-spacing: -0.02em; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 16px; color: rgba(255,255,255,0.75); font-size: 14px; align-items: center; }
.article-wrapper { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 40px; padding: 48px 24px; }
.article-main {
  background: #fff; border-radius: var(--radius-lg); padding: 40px 44px;
  border: 1px solid var(--border); box-shadow: var(--shadow-sm);
}
.feature-image { border-radius: var(--radius); margin-bottom: 28px; box-shadow: var(--shadow-sm); width: 100%; height: 320px; object-fit: cover; }
.article-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; margin-bottom: 24px; }
.badge {
  display: inline-block; background: rgba(212,162,78,0.14); color: var(--accent-dark);
  padding: 4px 14px; border-radius: 999px; font-size: 12px; font-weight: 700;
}
.article-body { font-size: 16px; line-height: 1.9; color: #334155; }
.article-body h2 { font-size: 26px; color: var(--primary); margin: 32px 0 14px; padding-bottom: 8px; border-bottom: 2px solid rgba(212,162,78,0.2); font-weight: 700; letter-spacing: -0.01em; }
.article-body h3 { font-size: 20px; color: var(--primary); margin: 24px 0 10px; font-weight: 600; }
.article-body p { margin-bottom: 16px; }
.article-body ul, .article-body ol { margin: 0 0 16px 20px; }
.article-body li { margin-bottom: 6px; }
.article-body img { border-radius: var(--radius); margin: 20px 0; }
.article-body blockquote {
  border-left: 4px solid var(--accent); background: rgba(212,162,78,0.08);
  padding: 16px 20px; border-radius: 0 var(--radius) var(--radius) 0; margin: 20px 0;
  color: var(--text-muted); font-size: 15px;
}
.article-body a { color: var(--accent-dark); border-bottom: 1px solid rgba(212,162,78,0.4); }
.article-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--border); }
.tag {
  display: inline-block; padding: 5px 14px; border-radius: 999px; font-size: 13px;
  background: var(--bg-body); border: 1px solid var(--border); color: var(--text-muted);
  transition: all 0.2s;
}
.tag:hover { border-color: var(--accent); color: var(--accent-dark); background: rgba(212,162,78,0.06); }
.article-side { display: flex; flex-direction: column; gap: 24px; }
.side-card {
  background: #fff; border-radius: var(--radius-lg); padding: 24px;
  border: 1px solid var(--border); box-shadow: var(--shadow-sm);
}
.side-card h3 {
  font-size: 15px; font-weight: 700; color: var(--primary); margin-bottom: 16px;
  padding-bottom: 10px; border-bottom: 2px solid rgba(212,162,78,0.18); text-transform: uppercase; letter-spacing: 0.04em;
}
.toc-list { list-style: none; max-height: 400px; overflow-y: auto; }
.toc-list li { margin-bottom: 4px; }
.toc-list a {
  display: block; padding: 7px 10px; border-radius: 8px; font-size: 13px;
  color: var(--text-muted); transition: all 0.2s; line-height: 1.4;
}
.toc-list a:hover { background: rgba(30,58,95,0.05); color: var(--primary); }
.side-list { list-style: none; }
.side-list li { border-bottom: 1px dashed var(--border); padding: 10px 0; }
.side-list li:last-child { border-bottom: none; }
.side-list a { font-size: 14px; color: var(--text-main); transition: color 0.2s; display: block; line-height: 1.5; }
.side-list a:hover { color: var(--accent-dark); }
.not-found { text-align: center; padding: 60px 20px; }
.not-found h2 { font-size: 32px; color: var(--primary); margin-bottom: 12px; }
.not-found p { color: var(--text-muted); margin-bottom: 24px; }
.latest-section { padding: 80px 24px; }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 32px; }
.section-head h2 { font-size: 28px; font-weight: 800; color: var(--primary); letter-spacing: -0.02em; }
.section-head h2 span { color: var(--accent); }
.section-link { font-size: 14px; color: var(--accent-dark); font-weight: 600; transition: color 0.2s; }
.section-link:hover { color: var(--primary); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-card {
  background: #fff; border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid var(--border); box-shadow: var(--shadow-sm);
  transition: all 0.3s ease; display: flex; flex-direction: column;
}
.news-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.news-card img { width: 100%; height: 180px; object-fit: cover; }
.news-card .card-body { padding: 22px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.news-card .card-body h3 { font-size: 16px; font-weight: 700; color: var(--text-main); line-height: 1.5; }
.news-card .card-body h3:hover { color: var(--accent-dark); }
.news-card .card-body p { font-size: 13px; color: var(--text-muted); line-height: 1.6; flex: 1; }
.news-card .card-body .date { font-size: 12px; color: #94a3b8; }
.cta-section {
  background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  position: relative; padding: 100px 24px; text-align: center;
}
.cta-section::before { content: ''; position: absolute; inset: 0; background: rgba(19,43,70,0.88); }
.cta-section .container { position: relative; z-index: 2; }
.cta-section h2 { color: #fff; font-size: 36px; font-weight: 800; margin-bottom: 14px; letter-spacing: -0.02em; }
.cta-section p { color: rgba(255,255,255,0.75); font-size: 17px; margin-bottom: 32px; }
.btn-white { background: #fff; color: var(--primary); padding: 12px 32px; border-radius: 999px; font-weight: 700; display: inline-block; transition: all 0.25s; box-shadow: 0 4px 20px rgba(0,0,0,0.15); }
.btn-white:hover { background: var(--accent); color: #fff; transform: translateY(-2px); }
.btn-outline-white { border: 2px solid rgba(255,255,255,0.6); color: #fff; padding: 10px 30px; border-radius: 999px; font-weight: 600; margin-left: 12px; display: inline-block; transition: all 0.25s; }
.btn-outline-white:hover { border-color: var(--accent); color: var(--accent); }
.faq-section { padding: 80px 24px; }
.faq-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.faq-item {
  background: #fff; border-radius: var(--radius); padding: 24px; border: 1px solid var(--border);
  box-shadow: var(--shadow-sm); transition: all 0.25s;
}
.faq-item:hover { border-color: rgba(212,162,78,0.5); box-shadow: var(--shadow); }
.faq-item h3 { font-size: 16px; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
.faq-item p { font-size: 14px; color: var(--text-muted); line-height: 1.7; }
.site-footer { background: var(--primary-dark); color: rgba(255,255,255,0.75); padding: 64px 24px 24px; }
.footer-content { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; margin-bottom: 48px; }
.footer-brand .logo { color: #fff; font-size: 24px; margin-bottom: 14px; }
.footer-brand p { font-size: 14px; line-height: 1.8; max-width: 360px; }
.footer-col h4 { color: #fff; font-size: 15px; font-weight: 700; margin-bottom: 16px; }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a { font-size: 14px; color: rgba(255,255,255,0.65); transition: all 0.2s; }
.footer-col ul a:hover { color: var(--accent); padding-left: 4px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.12); padding-top: 24px; text-align: center; font-size: 13px; }
.footer-bottom a { color: rgba(255,255,255,0.6); }
.footer-bottom a:hover { color: var(--accent); }
@media (max-width: 1024px) {
  .container { padding: 0 20px; }
  .article-wrapper { grid-template-columns: 1fr; }
  .article-side { flex-direction: row; flex-wrap: wrap; }
  .side-card { flex: 1 1 calc(50% - 12px); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .site-header .container { gap: 12px; }
  .main-nav {
    position: fixed; top: var(--header-h); left: 0; right: 0; background: #fff;
    flex-direction: column; padding: 20px; border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow); display: none; gap: 4px; align-items: stretch;
  }
  .main-nav.open { display: flex; }
  .header-actions {
    position: fixed; top: calc(var(--header-h) + 180px); left: 0; right: 0;
    flex-direction: column; padding: 0 20px 20px; background: #fff; display: none;
  }
  .header-actions.open { display: flex; }
  .search-box { width: 100%; }
  .mobile-toggle { display: flex; margin-left: auto; }
  .article-hero { min-height: 300px; }
  .article-hero h1 { font-size: 28px; }
  .article-main { padding: 24px 20px; }
  .feature-image { height: 200px; }
  .grid-3 { grid-template-columns: 1fr; }
  .faq-grid { grid-template-columns: 1fr; }
  .footer-content { grid-template-columns: 1fr; gap: 28px; }
}
@media (max-width: 520px) {
  body { font-size: 15px; }
  .container { padding: 0 16px; }
  .logo { font-size: 18px; }
  .article-hero h1 { font-size: 24px; }
  .hero-meta { font-size: 12px; gap: 10px; }
  .article-side { flex-direction: column; }
  .side-card { flex: 1 1 100%; }
  .btn-primary { padding: 8px 14px; font-size: 13px; }
  .btn-white, .btn-outline-white { padding: 10px 22px; font-size: 14px; }
  .btn-outline-white { margin-left: 0; margin-top: 10px; }
  .cta-section h2 { font-size: 26px; }
}

/* roulang page: category1 */
:root {
    --brand: #2563eb;
    --brand-dark: #1d4ed8;
    --accent: #06b6d4;
    --ink: #0f172a;
    --text: #1e293b;
    --text-light: #64748b;
    --bg: #f8fafc;
    --card: #ffffff;
    --border: #e2e8f0;
    --radius: 16px;
    --radius-lg: 24px;
    --shadow-sm: 0 2px 12px rgba(15, 23, 42, 0.06);
    --shadow: 0 8px 30px rgba(15, 23, 42, 0.08);
    --shadow-lg: 0 16px 48px rgba(37, 99, 235, 0.14);
    --space-section: 88px;
  }

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

  html {
    scroll-behavior: smooth;
  }

  body {
    font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
  }

  a {
    text-decoration: none;
    color: inherit;
    transition: color 0.25s ease;
  }

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

  button,
  input {
    font-family: inherit;
  }

  .container {
    width: min(1200px, 92%);
    margin: 0 auto;
  }

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

  .section-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    border-radius: 99px;
    background: rgba(37, 99, 235, 0.08);
    color: var(--brand);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.02em;
  }

  .section-title {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 800;
    color: var(--ink);
    line-height: 1.25;
    letter-spacing: -0.02em;
    margin-top: 14px;
  }

  .section-subtitle {
    font-size: 1.05rem;
    color: var(--text-light);
    max-width: 640px;
    margin-top: 12px;
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.16);
  }

  .btn-primary {
    background: var(--brand);
    color: #fff;
  }

  .btn-primary:hover {
    background: var(--brand-dark);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
  }

  .btn-outline {
    background: transparent;
    color: var(--ink);
    border: 1.5px solid var(--border);
    box-shadow: none;
  }

  .btn-outline:hover {
    border-color: var(--brand);
    color: var(--brand);
    background: rgba(37, 99, 235, 0.04);
  }

  .btn-light {
    background: #fff;
    color: var(--ink);
    box-shadow: 0 2px 20px rgba(15, 23, 42, 0.1);
  }

  .btn-light:hover {
    background: #f1f5f9;
    transform: translateY(-2px);
    box-shadow: 0 6px 28px rgba(15, 23, 42, 0.14);
  }

  .btn:focus-visible,
  .nav-link:focus-visible,
  .menu-toggle:focus-visible,
  input:focus-visible {
    outline: 3px solid rgba(37, 99, 235, 0.35);
    outline-offset: 2px;
  }

  /* Header */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(255, 255, 255, 0.86);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(226, 232, 240, 0.7);
  }

  .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 68px;
    gap: 24px;
  }

  .logo-text {
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--ink);
    letter-spacing: -0.01em;
    white-space: nowrap;
    flex-shrink: 0;
  }

  .logo-text .highlight {
    color: var(--brand);
  }

  .main-nav {
    display: flex;
    align-items: center;
    gap: 6px;
    margin: 0 auto;
  }

  .nav-link {
    padding: 8px 18px;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-light);
    transition: all 0.25s ease;
  }

  .nav-link:hover {
    color: var(--ink);
    background: rgba(15, 23, 42, 0.04);
  }

  .nav-link.active {
    color: var(--brand);
    background: rgba(37, 99, 235, 0.08);
    font-weight: 600;
  }

  .header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
  }

  .search-wrap {
    position: relative;
    display: flex;
    align-items: center;
  }

  .search-wrap svg {
    position: absolute;
    left: 12px;
    width: 16px;
    height: 16px;
    color: var(--text-light);
    pointer-events: none;
  }

  .search-wrap input {
    width: 220px;
    padding: 9px 14px 9px 38px;
    border-radius: 99px;
    border: 1.5px solid var(--border);
    background: #fff;
    font-size: 14px;
    color: var(--ink);
    transition: border-color 0.25s, box-shadow 0.25s;
  }

  .search-wrap input:focus {
    outline: none;
    border-color: var(--brand);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
  }

  .menu-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border: none;
    background: transparent;
    cursor: pointer;
    border-radius: 10px;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;
  }

  .menu-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--ink);
    border-radius: 2px;
    transition: all 0.3s ease;
  }

  .menu-toggle.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .menu-toggle.open span:nth-child(2) {
    opacity: 0;
  }

  .menu-toggle.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  /* Mobile Nav */
  .mobile-nav {
    display: none;
    flex-direction: column;
    gap: 4px;
    padding: 12px 4% 20px;
    background: #fff;
    border-top: 1px solid var(--border);
  }

  .mobile-nav.show {
    display: flex;
  }

  .mobile-nav .nav-link {
    padding: 14px 18px;
    font-size: 16px;
  }

  /* Hero Banner */
  .page-hero {
    position: relative;
    background-size: cover;
    background-position: center;
    padding: 100px 0 90px;
    color: #fff;
  }

  .page-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, rgba(15, 23, 42, 0.92), rgba(15, 23, 42, 0.72) 55%, rgba(37, 99, 235, 0.4));
  }

  .hero-content {
    position: relative;
    z-index: 2;
  }

  .breadcrumb {
    display: inline-block;
    padding: 6px 14px;
    border-radius: 99px;
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(6px);
    font-size: 13px;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 22px;
    border: 1px solid rgba(255, 255, 255, 0.16);
  }

  .breadcrumb a {
    color: rgba(255, 255, 255, 0.7);
  }

  .breadcrumb a:hover {
    color: #fff;
  }

  .ready-h1 {
    font-size: clamp(2.2rem, 4.5vw, 3.4rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin-bottom: 18px;
    max-width: 760px;
  }

  .ready-h1 .accent {
    color: #38bdf8;
  }

  .hero-desc {
    font-size: 1.15rem;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.75);
    max-width: 600px;
  }

  .hero-search {
    margin-top: 36px;
    display: flex;
    align-items: center;
    gap: 0;
    max-width: 520px;
    background: #fff;
    border-radius: 99px;
    padding: 6px 6px 6px 8px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.16);
  }

  .hero-search input {
    flex: 1;
    border: none;
    padding: 10px 16px;
    font-size: 15px;
    background: transparent;
    color: var(--ink);
    min-width: 0;
  }

  .hero-search input:focus {
    outline: none;
  }

  .hero-search .btn {
    border-radius: 99px;
    padding: 10px 22px;
    flex-shrink: 0;
  }

  /* Step Cards */
  .step-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 44px;
  }

  .step-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 24px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
  }

  .step-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow);
    border-color: rgba(37, 99, 235, 0.3);
  }

  .step-num {
    font-size: 2rem;
    font-weight: 800;
    color: rgba(37, 99, 235, 0.15);
    letter-spacing: -0.03em;
    line-height: 1;
    display: block;
    margin-bottom: 20px;
  }

  .step-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--ink);
    margin-bottom: 8px;
  }

  .step-card p {
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.55;
  }

  /* Feature Cards */
  .feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    margin-top: 48px;
  }

  .feature-card {
    background: var(--card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    overflow: hidden;
    transition: all 0.35s ease;
  }

  .feature-card:hover {
    box-shadow: var(--shadow);
    transform: translateY(-4px);
    border-color: rgba(37, 99, 235, 0.25);
  }

  .feature-card img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    border-bottom: 1px solid var(--border);
  }

  .feature-body {
    padding: 24px;
  }

  .feature-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    background: rgba(37, 99, 235, 0.1);
    color: var(--brand);
    margin-bottom: 16px;
  }

  .feature-body h3 {
    font-size: 1.12rem;
    font-weight: 700;
    color: var(--ink);
    margin-bottom: 8px;
  }

  .feature-body p {
    font-size: 0.92rem;
    color: var(--text-light);
    line-height: 1.55;
  }

  /* Scenario */
  .scenario-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
    margin-top: 48px;
  }

  .scenario-card {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    height: 360px;
    display: flex;
    align-items: flex-end;
    color: #fff;
    background-size: cover;
    background-position: center;
  }

  .scenario-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(15, 23, 42, 0.9), transparent 70%);
  }

  .scenario-content {
    position: relative;
    z-index: 2;
    padding: 32px;
  }

  .scenario-content .tag {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 99px;
    background: rgba(255, 255, 255, 0.18);
    border: 1px solid rgba(255, 255, 255, 0.24);
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 12px;
    backdrop-filter: blur(4px);
  }

  .scenario-content h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 8px;
  }

  .scenario-content p {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
  }

  /* Articles */
  .article-list {
    margin-top: 44px;
    display: flex;
    flex-direction: column;
    gap: 14px;
  }

  .article-row {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 20px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    transition: all 0.3s ease;
  }

  .article-row:hover {
    box-shadow: var(--shadow);
    border-color: rgba(37, 99, 235, 0.25);
    transform: translateX(4px);
  }

  .article-row .title {
    font-weight: 600;
    color: var(--ink);
    font-size: 1rem;
    margin-bottom: 6px;
  }

  .article-row .meta {
    font-size: 0.82rem;
    color: var(--text-light);
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
  }

  .article-row .badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    background: rgba(6, 182, 212, 0.1);
    color: #0e7490;
  }

  .article-row .badge.badge-blue {
    background: rgba(37, 99, 235, 0.1);
    color: var(--brand);
  }

  .article-arrow {
    color: var(--text-light);
    flex-shrink: 0;
    transition: transform 0.3s ease, color 0.3s ease;
  }

  .article-row:hover .article-arrow {
    transform: translateX(4px);
    color: var(--brand);
  }

  /* Stats */
  .stats-section {
    background: linear-gradient(135deg, #0b1120 0%, #111c33 60%, #1e293b 100%);
    color: #fff;
    position: relative;
    overflow: hidden;
  }

  .stats-section::before {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: rgba(37, 99, 235, 0.3);
    filter: blur(90px);
    top: -80px;
    right: 10%;
  }

  .stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
    margin-top: 0;
  }

  .stat-item {
    text-align: center;
    padding: 12px;
  }

  .stat-number {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    color: #38bdf8;
    line-height: 1.1;
  }

  .stat-label {
    font-size: 0.92rem;
    color: rgba(255, 255, 255, 0.65);
    margin-top: 6px;
  }

  /* FAQ */
  .faq-wrap {
    max-width: 780px;
    margin: 44px auto 0;
    display: flex;
    flex-direction: column;
    gap: 14px;
  }

  .faq-item {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 14px;
    overflow: hidden;
    transition: border-color 0.25s, box-shadow 0.25s;
  }

  .faq-item:hover {
    border-color: rgba(37, 99, 235, 0.25);
  }

  .faq-item summary {
    padding: 18px 24px;
    font-weight: 600;
    color: var(--ink);
    font-size: 0.98rem;
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
  }

  .faq-item summary::-webkit-details-marker {
    display: none;
  }

  .faq-item summary::after {
    content: '+';
    font-size: 1.4rem;
    color: var(--brand);
    font-weight: 400;
    flex-shrink: 0;
    transition: transform 0.3s ease;
  }

  .faq-item[open] summary::after {
    transform: rotate(45deg);
  }

  .faq-answer {
    padding: 0 24px 20px;
    font-size: 0.92rem;
    color: var(--text-light);
    line-height: 1.65;
  }

  /* CTA */
  .cta-section {
    background: linear-gradient(130deg, #1d4ed8, #2563eb 55%, #0ea5e9);
    color: #fff;
    padding: 72px 0;
    position: relative;
    overflow: hidden;
  }

  .cta-section::after {
    content: '';
    position: absolute;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    top: -40px;
    left: 10%;
  }

  .cta-inner {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    flex-wrap: wrap;
  }

  .cta-inner h2 {
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 10px;
  }

  .cta-inner p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1rem;
  }

  /* Footer */
  .site-footer {
    background: #0f172a;
    color: rgba(255, 255, 255, 0.7);
    padding: 56px 0 28px;
  }

  .footer-content {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 36px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .footer-brand p {
    font-size: 0.9rem;
    line-height: 1.65;
    color: rgba(255, 255, 255, 0.5);
    margin-top: 16px;
    max-width: 320px;
  }

  .footer-col h4 {
    color: #fff;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 16px;
  }

  .footer-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
  }

  .footer-col a {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.55);
    transition: color 0.25s;
  }

  .footer-col a:hover {
    color: #fff;
  }

  .footer-bottom {
    text-align: center;
    padding-top: 24px;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.38);
  }

  .footer-bottom a {
    color: rgba(255, 255, 255, 0.6);
  }

  .footer-bottom a:hover {
    color: #fff;
  }

  /* Responsive */
  @media (max-width: 1024px) {
    .step-grid {
      grid-template-columns: repeat(2, 1fr);
    }
    .feature-grid {
      grid-template-columns: repeat(2, 1fr);
    }
    .stats-grid {
      grid-template-columns: repeat(2, 1fr);
      row-gap: 36px;
    }
  }

  @media (max-width: 768px) {
    :root {
      --space-section: 64px;
    }

    .main-nav {
      display: none;
    }

    .menu-toggle {
      display: inline-flex;
    }

    .search-wrap {
      display: none;
    }

    .header-actions .btn-primary {
      display: none;
    }

    .scenario-grid {
      grid-template-columns: 1fr;
    }

    .scenario-card {
      height: 300px;
    }

    .footer-content {
      grid-template-columns: 1fr;
      gap: 28px;
    }

    .cta-inner {
      flex-direction: column;
      align-items: flex-start;
    }
  }

  @media (max-width: 520px) {
    .step-grid {
      grid-template-columns: 1fr;
    }

    .feature-grid {
      grid-template-columns: 1fr;
    }

    .stats-grid {
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
    }

    .article-row {
      flex-direction: column;
      align-items: flex-start;
    }

    .article-arrow {
      display: none;
    }

    .page-hero {
      padding: 72px 0 64px;
    }
  }