/* roulang page: index */
:root {
  --primary: #0d1b2a;
  --primary-soft: #16263b;
  --accent: #f0b90b;
  --accent-strong: #d49a00;
  --cyan: #17c3c9;
  --bg-dark: #080d17;
  --bg-card: #0f1828;
  --bg-soft: #121d30;
  --text-light: #e8edf5;
  --text-muted: #8d99b0;
  --border-line: rgba(255, 255, 255, 0.07);
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow-main: 0 12px 40px rgba(0, 0, 0, 0.45);
  --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.25);
  --transition-fast: all 0.25s ease;
  --transition-slow: all 0.4s ease;
}
*, *::before, *::after {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  background: var(--bg-dark);
  color: var(--text-light);
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  line-height: 1.7;
  overflow-x: hidden;
  margin: 0;
}
a {
  text-decoration: none;
  color: inherit;
}
img {
  max-width: 100%;
  height: auto;
}
button, input, select, textarea {
  font-family: inherit;
}
.container-55 {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}
.section-padding {
  padding: 90px 0;
}
.section-header {
  text-align: center;
  margin-bottom: 56px;
}
.section-header .section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  border-radius: 30px;
  background: rgba(240, 185, 11, 0.1);
  border: 1px solid rgba(240, 185, 11, 0.25);
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  margin-bottom: 16px;
  text-transform: uppercase;
}
.section-header h2 {
  font-size: 2.4rem;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: 0.01em;
}
.section-header p {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 620px;
  margin: 0 auto;
}
.btn-main {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  background: linear-gradient(135deg, var(--accent), #ff8c00);
  color: #0d1b2a;
  font-weight: 700;
  font-size: 0.95rem;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-fast);
  box-shadow: 0 4px 18px rgba(240, 185, 11, 0.28);
  text-decoration: none;
}
.btn-main:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(240, 185, 11, 0.38);
  color: #0d1b2a;
}
.btn-main:active {
  transform: translateY(0);
  box-shadow: 0 4px 14px rgba(240, 185, 11, 0.25);
}
.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: var(--text-light);
  font-weight: 500;
  font-size: 0.95rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-fast);
  text-decoration: none;
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(240, 185, 11, 0.06);
  transform: translateY(-2px);
}
.btn-outline:active {
  transform: translateY(0);
}
.btn-lg-55 {
  padding: 14px 36px;
  font-size: 1.05rem;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 1050;
  padding: 14px 0;
  background: rgba(8, 13, 23, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-line);
}
.main-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 10px 24px;
  background: linear-gradient(135deg, rgba(21, 34, 54, 0.92), rgba(12, 20, 34, 0.96));
  border: 1px solid var(--border-line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
}
.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.logo-icon {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent), #ff8c00);
  border-radius: 12px;
  color: #0d1b2a;
  font-size: 1.15rem;
  box-shadow: 0 4px 16px rgba(240, 185, 11, 0.35);
  transition: var(--transition-fast);
}
.brand-logo:hover .logo-icon {
  transform: rotate(-6deg);
}
.logo-text {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text-light);
  letter-spacing: 0.05em;
  white-space: nowrap;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-link {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.92rem;
  font-weight: 500;
  transition: var(--transition-fast);
  outline: none;
}
.nav-link i {
  font-size: 0.8rem;
  opacity: 0.8;
}
.nav-link:hover,
.nav-link:focus-visible {
  color: var(--text-light);
  background: rgba(240, 185, 11, 0.06);
  outline: none;
}
.nav-link.active {
  color: var(--accent);
  background: rgba(240, 185, 11, 0.1);
  box-shadow: inset 0 0 0 1px rgba(240, 185, 11, 0.25);
}
.nav-cta {
  margin-left: 4px;
  flex-shrink: 0;
}
.nav-cta .btn-main {
  padding: 9px 20px;
  font-size: 0.9rem;
}
.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-line);
  border-radius: 10px;
  color: var(--text-light);
  font-size: 1rem;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}
.nav-toggle:hover {
  border-color: rgba(240, 185, 11, 0.4);
  color: var(--accent);
}
.hero-section {
  position: relative;
  min-height: 640px;
  display: flex;
  align-items: center;
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
  overflow: hidden;
  border-bottom: 1px solid var(--border-line);
}
.hero-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(8, 13, 23, 0.92) 0%, rgba(8, 13, 23, 0.78) 55%, rgba(8, 13, 23, 0.88) 100%);
  z-index: 1;
}
.hero-section::after {
  content: '';
  position: absolute;
  bottom: -30%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(240, 185, 11, 0.18) 0%, transparent 70%);
  z-index: 0;
  pointer-events: none;
}
.hero-section .container-55 {
  position: relative;
  z-index: 2;
}
.hero-content {
  max-width: 720px;
  padding: 70px 0;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 18px;
  border-radius: 30px;
  background: rgba(240, 185, 11, 0.12);
  border: 1px solid rgba(240, 185, 11, 0.3);
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  margin-bottom: 22px;
}
.hero-content h1 {
  font-size: 3.6rem;
  font-weight: 800;
  line-height: 1.12;
  margin: 0 0 16px;
  letter-spacing: 0.02em;
  background: linear-gradient(135deg, #ffffff 20%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-content .hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 16px;
  max-width: 600px;
  font-weight: 400;
}
.hero-content .hero-desc {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.55);
  max-width: 540px;
  margin-bottom: 36px;
  line-height: 1.8;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}
.hero-metrics {
  display: flex;
  gap: 32px;
  margin-top: 48px;
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}
.hero-metrics .metric-item .metric-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-light);
}
.hero-metrics .metric-item .metric-value span {
  color: var(--accent);
}
.hero-metrics .metric-item .metric-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 2px;
}
.features-section {
  background: var(--bg-dark);
}
.feature-card {
  height: 100%;
  padding: 32px 24px;
  background: linear-gradient(145deg, #111d31, #0e1728);
  border: 1px solid var(--border-line);
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
  position: relative;
  overflow: hidden;
}
.feature-card::after {
  content: '';
  position: absolute;
  top: -40px;
  right: -40px;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(240, 185, 11, 0.08), transparent 70%);
  opacity: 0;
  transition: var(--transition-fast);
}
.feature-card:hover {
  transform: translateY(-6px);
  border-color: rgba(240, 185, 11, 0.35);
  box-shadow: var(--shadow-card);
}
.feature-card:hover::after {
  opacity: 1;
}
.feature-icon {
  width: 54px;
  height: 54px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(240, 185, 11, 0.18), rgba(23, 195, 201, 0.12));
  color: var(--accent);
  font-size: 1.35rem;
  margin-bottom: 20px;
  border: 1px solid rgba(240, 185, 11, 0.15);
}
.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-light);
}
.feature-card p {
  font-size: 0.93rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 0;
}
.category-section {
  background: var(--bg-soft);
  border-top: 1px solid var(--border-line);
  border-bottom: 1px solid var(--border-line);
}
.category-card {
  position: relative;
  height: 330px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  background-size: cover;
  background-position: center center;
  cursor: pointer;
  box-shadow: var(--shadow-card);
  transition: var(--transition-fast);
}
.category-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5);
}
.category-card .overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8, 13, 23, 0.1) 30%, rgba(8, 13, 23, 0.95) 100%);
  transition: var(--transition-fast);
}
.category-card:hover .overlay {
  background: linear-gradient(180deg, rgba(8, 13, 23, 0.15) 10%, rgba(8, 13, 23, 0.98) 100%);
}
.category-card-content {
  position: relative;
  z-index: 2;
  padding: 26px;
  width: 100%;
}
.category-card-content .category-badge {
  display: inline-block;
  padding: 4px 14px;
  background: rgba(240, 185, 11, 0.16);
  border: 1px solid rgba(240, 185, 11, 0.3);
  color: var(--accent);
  border-radius: 20px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: 12px;
}
.category-card-content h3 {
  font-size: 1.45rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}
.category-card-content p {
  font-size: 0.92rem;
  color: rgba(255, 255, 255, 0.65);
  margin-bottom: 16px;
  line-height: 1.6;
}
.category-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent);
  font-weight: 600;
  font-size: 0.9rem;
  transition: var(--transition-fast);
}
.category-link:hover {
  gap: 14px;
  color: #ffd75e;
}
.stats-section {
  background: var(--bg-dark);
}
.stats-panel {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  padding: 48px 40px;
  background: linear-gradient(145deg, #111d31, #0d1830);
  border: 1px solid rgba(240, 185, 11, 0.18);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-main);
  position: relative;
  overflow: hidden;
}
.stats-panel::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--cyan));
}
.summit-item {
  text-align: center;
  padding: 18px 10px;
}
.summit-item .stat-num {
  font-size: 2.7rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.15;
  margin-bottom: 4px;
  font-family: "Helvetica Neue", Arial, sans-serif;
}
.summit-item .stat-label {
  font-size: 0.95rem;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}
.summit-item + .summit-item {
  border-left: 1px solid rgba(255, 255, 255, 0.06);
}
.news-section {
  background: var(--bg-dark);
}
.news-card {
  height: 100%;
  display: flex;
  flex-direction: column;
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-line);
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
}
.news-card:hover {
  transform: translateY(-5px);
  border-color: rgba(240, 185, 11, 0.3);
  box-shadow: var(--shadow-card);
}
.news-card .news-badge {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 14px;
  background: rgba(23, 195, 201, 0.12);
  border: 1px solid rgba(23, 195, 201, 0.25);
  color: var(--cyan);
  border-radius: 20px;
  font-size: 0.78rem;
  font-weight: 600;
  margin-bottom: 14px;
}
.news-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 10px;
}
.news-card h3 a {
  color: var(--text-light);
  transition: var(--transition-fast);
}
.news-card h3 a:hover {
  color: var(--accent);
}
.news-card .news-excerpt {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 16px;
  flex-grow: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card .news-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px solid var(--border-line);
  margin-top: auto;
}
.news-card .news-meta {
  display: flex;
  gap: 14px;
  color: var(--text-muted);
  font-size: 0.82rem;
}
.news-card .news-meta i {
  font-size: 0.75rem;
  margin-right: 4px;
}
.news-card .read-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 600;
  transition: var(--transition-fast);
}
.news-card .read-more:hover {
  gap: 10px;
  color: #ffd75e;
}
.empty-state {
  padding: 60px 20px;
  text-align: center;
  background: var(--bg-card);
  border: 1px dashed rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-md);
  color: var(--text-muted);
}
.empty-state i {
  font-size: 2.4rem;
  color: rgba(255, 255, 255, 0.15);
  margin-bottom: 16px;
  display: block;
}
.process-section {
  background: var(--bg-soft);
  border-top: 1px solid var(--border-line);
  border-bottom: 1px solid var(--border-line);
}
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: step;
}
.step-item {
  position: relative;
  text-align: center;
  padding: 36px 20px 28px;
  background: var(--bg-card);
  border: 1px solid var(--border-line);
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
}
.step-item:hover {
  transform: translateY(-5px);
  border-color: rgba(240, 185, 11, 0.3);
  box-shadow: var(--shadow-card);
}
.step-number {
  width: 50px;
  height: 50px;
  margin: 0 auto 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #ff8c00);
  color: #0d1b2a;
  font-weight: 800;
  font-size: 1.2rem;
  box-shadow: 0 6px 20px rgba(240, 185, 11, 0.3);
}
.step-item h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
}
.step-item p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 0;
}
.step-item::after {
  content: '';
  position: absolute;
  top: 50%;
  right: -14px;
  width: 24px;
  height: 2px;
  background: linear-gradient(90deg, rgba(240, 185, 11, 0.5), transparent);
}
.step-item:last-child::after {
  display: none;
}
.faq-section {
  background: var(--bg-dark);
}
.faq-item {
  padding: 22px 26px;
  background: var(--bg-card);
  border: 1px solid var(--border-line);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  transition: var(--transition-fast);
  cursor: pointer;
}
.faq-item:hover {
  border-color: rgba(240, 185, 11, 0.25);
}
.faq-item summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  list-style: none;
  cursor: pointer;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-light);
  outline: none;
}
.faq-item summary::-webkit-details-marker {
  display: none;
}
.faq-item summary i {
  color: var(--accent);
  transition: var(--transition-fast);
  font-size: 0.9rem;
}
.faq-item[open] summary i {
  transform: rotate(180deg);
}
.faq-answer {
  padding-top: 16px;
  margin-top: 16px;
  border-top: 1px solid var(--border-line);
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.75;
}
.cta-section {
  background: var(--bg-dark);
}
.cta-panel {
  background: linear-gradient(135deg, #f0b90b 0%, #f08a00 100%);
  border-radius: var(--radius-lg);
  padding: 64px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 16px 50px rgba(240, 185, 11, 0.3);
}
.cta-panel::before {
  content: '';
  position: absolute;
  top: -60%;
  left: -20%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.25), transparent 70%);
  pointer-events: none;
}
.cta-panel::after {
  content: '\f0c7';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  position: absolute;
  bottom: -40px;
  right: 40px;
  font-size: 10rem;
  color: rgba(13, 27, 42, 0.08);
  transform: rotate(-15deg);
}
.cta-panel h2 {
  font-size: 2.2rem;
  font-weight: 800;
  color: #0d1b2a;
  margin-bottom: 14px;
  position: relative;
  z-index: 1;
}
.cta-panel p {
  color: rgba(13, 27, 42, 0.85);
  font-size: 1.05rem;
  max-width: 560px;
  margin: 0 auto 32px;
  position: relative;
  z-index: 1;
}
.cta-panel .btn-cta {
  background: #0d1b2a;
  color: var(--accent);
  border: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 36px;
  font-size: 1.05rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-fast);
  position: relative;
  z-index: 1;
  text-decoration: none;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.3);
}
.cta-panel .btn-cta:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 32px rgba(0, 0, 0, 0.35);
  color: #ffd75e;
}
.site-footer {
  background: #0a101c;
  border-top: 1px solid var(--border-line);
  padding-top: 64px;
  margin-top: 40px;
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 44px;
}
.footer-brand .footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}
.footer-brand p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.75;
  max-width: 360px;
}
.footer-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-light);
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 10px;
}
.footer-title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 32px;
  height: 2px;
  background: var(--accent);
}
.footer-links ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-links li {
  margin-bottom: 10px;
}
.footer-links a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: var(--transition-fast);
}
.footer-links a:hover {
  color: var(--accent);
  padding-left: 4px;
}
.footer-contact ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-contact li {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-muted);
  font-size: 0.88rem;
  margin-bottom: 12px;
}
.footer-contact i {
  color: var(--accent);
  font-size: 0.9rem;
  width: 20px;
  text-align: center;
}
.footer-bottom {
  border-top: 1px solid var(--border-line);
  padding: 22px 0;
  text-align: center;
  color: rgba(255, 255, 255, 0.4);
  font-size: 0.85rem;
}
.footer-bottom a {
  color: rgba(255, 255, 255, 0.5);
  transition: var(--transition-fast);
}
.footer-bottom a:hover {
  color: var(--accent);
}
@media (max-width: 1024px) {
  .hero-content h1 {
    font-size: 3rem;
  }
  .stats-panel {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    padding: 36px 24px;
  }
  .summit-item + .summit-item {
    border-left: none;
  }
  .process-steps {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  .step-item::after {
    display: none;
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .cta-panel {
    padding: 50px 36px;
  }
}
@media (max-width: 768px) {
  .section-padding {
    padding: 60px 0;
  }
  .section-header {
    margin-bottom: 40px;
  }
  .section-header h2 {
    font-size: 1.9rem;
  }
  .site-header {
    padding: 10px 0;
  }
  .main-nav {
    flex-wrap: wrap;
    padding: 12px 16px;
    gap: 12px;
  }
  .logo-text {
    font-size: 1.1rem;
  }
  .nav-toggle {
    display: flex;
    margin-left: auto;
  }
  .nav-links {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding-top: 10px;
    border-top: 1px solid var(--border-line);
    margin-top: 4px;
  }
  .nav-links.open {
    display: flex;
  }
  .nav-link {
    justify-content: flex-start;
    padding: 10px 14px;
  }
  .nav-cta {
    display: none;
  }
  .hero-section {
    min-height: 520px;
  }
  .hero-content {
    padding: 50px 0;
  }
  .hero-content h1 {
    font-size: 2.4rem;
  }
  .hero-content .hero-subtitle {
    font-size: 1.1rem;
  }
  .hero-metrics {
    gap: 20px;
    flex-wrap: wrap;
    margin-top: 32px;
    padding-top: 20px;
  }
  .category-card {
    height: 280px;
  }
  .stats-panel {
    padding: 28px 20px;
  }
  .summit-item .stat-num {
    font-size: 2rem;
  }
  .faq-item {
    padding: 18px 20px;
  }
  .cta-panel {
    padding: 40px 24px;
  }
  .cta-panel h2 {
    font-size: 1.6rem;
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}
@media (max-width: 520px) {
  .container-55 {
    padding: 0 14px;
  }
  .hero-content h1 {
    font-size: 1.9rem;
  }
  .hero-content .hero-subtitle {
    font-size: 1rem;
  }
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .hero-actions .btn-main,
  .hero-actions .btn-outline {
    width: 100%;
  }
  .hero-metrics .metric-item .metric-value {
    font-size: 1.2rem;
  }
  .stats-panel {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    padding: 20px 14px;
  }
  .summit-item .stat-num {
    font-size: 1.7rem;
  }
  .process-steps {
    grid-template-columns: 1fr;
  }
  .cta-panel {
    padding: 32px 18px;
  }
  .cta-panel .btn-cta {
    width: 100%;
    justify-content: center;
  }
}

/* roulang page: article */
:root {
    --primary: #0f1b2d;
    --primary-light: #1a2a3f;
    --primary-lighter: #243650;
    --accent: #f5a623;
    --accent-dark: #d4921b;
    --accent-glow: rgba(245, 166, 35, 0.35);
    --bg: #f4f6fa;
    --card-bg: #ffffff;
    --text: #1a1d29;
    --text-muted: #6b7280;
    --text-light: #9aa5b1;
    --border: #e5e9f0;
    --radius: 16px;
    --radius-sm: 10px;
    --radius-lg: 24px;
    --shadow: 0 4px 20px rgba(15, 27, 45, 0.08);
    --shadow-lg: 0 12px 36px rgba(15, 27, 45, 0.14);
    --shadow-accent: 0 6px 24px rgba(245, 166, 35, 0.35);
    --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

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

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

body {
    font-family: var(--font-main);
    background: var(--bg);
    color: var(--text);
    line-height: 1.75;
    font-size: 16px;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    vertical-align: middle;
}

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

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

button,
input,
select,
textarea {
    font-family: var(--font-main);
}

button:focus-visible,
a:focus-visible,
input:focus-visible {
    outline: 3px solid var(--accent-glow);
    outline-offset: 2px;
}

.container-55 {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

.btn-main {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--accent), #ffb84d);
    color: #0f1b2d;
    font-weight: 700;
    font-size: 15px;
    padding: 11px 24px;
    border: none;
    border-radius: 50px;
    box-shadow: var(--shadow-accent);
    transition: var(--transition);
    text-decoration: none;
    letter-spacing: 0.3px;
}

.btn-main:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 32px rgba(245, 166, 35, 0.5);
    color: #0f1b2d;
    background: linear-gradient(135deg, #ffb84d, var(--accent));
}

.btn-main:active {
    transform: translateY(0);
    box-shadow: 0 4px 14px rgba(245, 166, 35, 0.3);
}

.btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    color: var(--text);
    font-weight: 600;
    font-size: 15px;
    padding: 10px 22px;
    border: 2px solid var(--border);
    border-radius: 50px;
    transition: var(--transition);
    text-decoration: none;
}

.btn-ghost:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(15, 27, 45, 0.08);
}

.btn-outline-light {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    font-weight: 600;
    padding: 10px 22px;
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: 50px;
    transition: var(--transition);
    text-decoration: none;
}

.btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
    border-color: var(--accent);
    transform: translateY(-2px);
}

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

.bg-primary-55 {
    background: var(--primary) !important;
}

/* ========== Header / Nav ========== */
.site-header {
    background: rgba(15, 27, 45, 0.97);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
}

.main-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 14px 0;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    flex-shrink: 0;
}

.logo-icon {
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent), #ffb84d);
    border-radius: 12px;
    color: #0f1b2d;
    font-size: 20px;
    box-shadow: var(--shadow-accent);
}

.logo-text {
    color: #fff;
    font-size: 20px;
    font-weight: 800;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
    flex: 1;
    justify-content: center;
}

.nav-link {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    color: rgba(255, 255, 255, 0.75);
    font-size: 15px;
    font-weight: 500;
    padding: 9px 12px;
    border-radius: 50px;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
}

.nav-link i {
    font-size: 14px;
    opacity: 0.8;
}

.nav-link:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.nav-link.active {
    color: #0f1b2d;
    background: linear-gradient(135deg, var(--accent), #ffb84d);
    font-weight: 700;
    box-shadow: 0 4px 16px rgba(245, 166, 35, 0.35);
}

.nav-cta {
    flex-shrink: 0;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: #fff;
    font-size: 24px;
    cursor: pointer;
    padding: 6px;
    border-radius: 8px;
}

.nav-toggle:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* ========== Article Hero ========== */
.article-hero {
    position: relative;
    background-size: cover;
    background-position: center;
    padding: 80px 0 72px;
    color: #fff;
    border-bottom: 4px solid var(--accent);
}

.article-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(15, 27, 45, 0.92) 0%, rgba(15, 27, 45, 0.75) 60%, rgba(245, 166, 35, 0.25) 100%);
    z-index: 1;
}

.article-hero .container-55 {
    position: relative;
    z-index: 2;
}

.breadcrumb-55 {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    margin-bottom: 22px;
    flex-wrap: wrap;
}

.breadcrumb-55 a {
    color: rgba(255, 255, 255, 0.75);
    text-decoration: none;
    transition: var(--transition);
    padding: 4px 0;
}

.breadcrumb-55 a:hover {
    color: var(--accent);
}

.breadcrumb-55 i {
    font-size: 11px;
    color: rgba(255, 255, 255, 0.4);
}

.breadcrumb-55 span {
    color: var(--accent);
    font-weight: 600;
}

.article-title {
    font-size: clamp(28px, 4vw, 44px);
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 24px;
    letter-spacing: 0.5px;
    max-width: 900px;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.article-meta-55 {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
}

.meta-badge {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.15);
    padding: 6px 14px;
    border-radius: 30px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(6px);
}

.meta-badge i {
    color: var(--accent);
    font-size: 12px;
}

.meta-badge strong {
    color: #fff;
    font-weight: 600;
}

/* ========== Article Main Layout ========== */
.article-main {
    padding: 56px 0 60px;
}

.article-card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    padding: 32px;
    border: 1px solid rgba(229, 233, 240, 0.6);
    transition: var(--transition);
}

.article-card:hover {
    box-shadow: var(--shadow-lg);
}

.article-cover {
    border-radius: var(--radius);
    overflow: hidden;
    margin-bottom: 32px;
    position: relative;
}

.article-cover img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.6s ease;
}

.article-cover:hover img {
    transform: scale(1.02);
}

.article-cover .cover-tag {
    position: absolute;
    top: 16px;
    left: 16px;
    background: linear-gradient(135deg, var(--accent), #ffb84d);
    color: #0f1b2d;
    font-weight: 700;
    font-size: 13px;
    padding: 5px 14px;
    border-radius: 30px;
    box-shadow: 0 4px 14px rgba(245, 166, 35, 0.4);
}

.article-content {
    font-size: 16.5px;
    line-height: 1.9;
    color: #2a2d3a;
}

.article-content p {
    margin-bottom: 20px;
}

.article-content h2 {
    font-size: 26px;
    font-weight: 800;
    color: var(--primary);
    margin: 36px 0 16px;
    padding-left: 14px;
    border-left: 4px solid var(--accent);
    line-height: 1.4;
}

.article-content h3 {
    font-size: 21px;
    font-weight: 700;
    color: var(--primary);
    margin: 28px 0 14px;
    line-height: 1.4;
}

.article-content img {
    border-radius: var(--radius);
    margin: 24px 0;
    box-shadow: var(--shadow);
}

.article-content ul,
.article-content ol {
    margin: 16px 0 20px;
    padding-left: 24px;
}

.article-content li {
    margin-bottom: 8px;
}

.article-content blockquote {
    background: linear-gradient(135deg, rgba(245, 166, 35, 0.1), rgba(245, 166, 35, 0.04));
    border-left: 4px solid var(--accent);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    padding: 20px 24px;
    margin: 24px 0;
    font-style: italic;
    color: var(--text);
}

.article-tags {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 24px 0;
    border-top: 1px solid var(--border);
    margin-top: 32px;
    flex-wrap: wrap;
}

.article-tags .tag-label {
    font-size: 14px;
    color: var(--text-muted);
    font-weight: 600;
}

.article-tags .tag-item {
    display: inline-block;
    background: var(--bg);
    color: var(--text);
    font-size: 13px;
    font-weight: 500;
    padding: 5px 14px;
    border-radius: 30px;
    transition: var(--transition);
    text-decoration: none;
    border: 1px solid var(--border);
}

.article-tags .tag-item:hover {
    background: var(--accent);
    color: #0f1b2d;
    border-color: var(--accent);
}

.article-share {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 18px 0;
    border-top: 1px solid var(--border);
    flex-wrap: wrap;
}

.share-label {
    font-size: 14px;
    color: var(--text-muted);
    font-weight: 600;
}

.share-icons {
    display: flex;
    gap: 8px;
}

.share-icons a {
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg);
    border-radius: 50%;
    font-size: 14px;
    color: var(--text);
    transition: var(--transition);
    text-decoration: none;
}

.share-icons a:hover {
    background: var(--accent);
    color: #0f1b2d;
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(245, 166, 35, 0.3);
}

.article-pagination {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    margin-top: 24px;
    flex-wrap: wrap;
}

.pagination-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--bg);
    padding: 10px 18px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
    text-decoration: none;
    border: 1px solid var(--border);
    transition: var(--transition);
    max-width: 48%;
}

.pagination-link:hover {
    background: var(--accent);
    color: #0f1b2d;
    border-color: var(--accent);
}

.pagination-link i {
    font-size: 13px;
}

/* ========== Sidebar ========== */
.side-card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    padding: 26px;
    border: 1px solid rgba(229, 233, 240, 0.6);
    margin-bottom: 24px;
    transition: var(--transition);
}

.side-card:hover {
    box-shadow: var(--shadow-lg);
}

.side-card .side-title {
    font-size: 18px;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.side-card .side-title .title-icon {
    width: 34px;
    height: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent), #ffb84d);
    border-radius: 10px;
    color: #0f1b2d;
    font-size: 15px;
}

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

.side-list li {
    border-bottom: 1px dashed var(--border);
    padding: 10px 0;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.side-list li:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.side-list li a {
    color: var(--text);
    font-size: 14.5px;
    line-height: 1.5;
    text-decoration: none;
    transition: var(--transition);
    display: block;
    flex: 1;
}

.side-list li a:hover {
    color: var(--accent);
    padding-left: 4px;
}

.side-list li .post-date {
    font-size: 12px;
    color: var(--text-light);
    white-space: nowrap;
    margin-top: 2px;
}

.side-list li i {
    color: var(--accent);
    font-size: 12px;
    margin-top: 4px;
}

.side-cat-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.side-cat-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg);
    padding: 12px 18px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
    text-decoration: none;
    transition: var(--transition);
    border: 1px solid transparent;
}

.side-cat-link:hover {
    background: rgba(245, 166, 35, 0.1);
    border-color: var(--accent);
    color: var(--accent);
    transform: translateX(4px);
}

.side-cat-link i {
    color: var(--accent);
    font-size: 13px;
}

.side-support {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: #fff;
    position: relative;
    overflow: hidden;
}

.side-support::before {
    content: "";
    position: absolute;
    top: -40px;
    right: -40px;
    width: 120px;
    height: 120px;
    background: radial-gradient(circle, rgba(245, 166, 35, 0.3), transparent 70%);
    border-radius: 50%;
}

.side-support h4 {
    color: var(--accent);
    font-weight: 800;
    margin-bottom: 12px;
}

.side-support p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 18px;
}

.side-support .btn-main {
    width: 100%;
    justify-content: center;
}

/* ========== Related Posts ========== */
.related-section {
    padding: 60px 0 70px;
    background: linear-gradient(180deg, var(--bg), #edf0f6);
}

.section-head {
    text-align: center;
    margin-bottom: 40px;
}

.section-head .section-subtitle {
    display: inline-block;
    background: rgba(245, 166, 35, 0.12);
    color: var(--accent-dark);
    font-size: 13px;
    font-weight: 700;
    padding: 6px 18px;
    border-radius: 30px;
    margin-bottom: 12px;
    letter-spacing: 1px;
}

.section-head h2 {
    font-size: clamp(24px, 3vw, 34px);
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 12px;
}

.section-head p {
    color: var(--text-muted);
    font-size: 16px;
    max-width: 620px;
    margin: 0 auto;
}

.related-card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid rgba(229, 233, 240, 0.6);
    transition: var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: var(--text);
}

.related-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    color: var(--text);
}

.related-card-img {
    position: relative;
    overflow: hidden;
    height: 180px;
}

.related-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.related-card:hover .related-card-img img {
    transform: scale(1.06);
}

.related-card-img .card-tag {
    position: absolute;
    top: 14px;
    left: 14px;
    background: rgba(15, 27, 45, 0.8);
    color: #fff;
    font-size: 12px;
    padding: 4px 12px;
    border-radius: 20px;
    backdrop-filter: blur(6px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.related-card-body {
    padding: 20px 20px 24px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.related-card-body h3 {
    font-size: 17px;
    font-weight: 700;
    line-height: 1.5;
    margin-bottom: 10px;
    color: var(--primary);
    transition: var(--transition);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.related-card:hover .related-card-body h3 {
    color: var(--accent);
}

.related-card-body p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 16px;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.related-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 13px;
    color: var(--text-light);
    padding-top: 14px;
    border-top: 1px solid var(--border);
}

.related-card-footer .btn-sm-55 {
    background: var(--bg);
    color: var(--text);
    padding: 6px 16px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 13px;
    transition: var(--transition);
    text-decoration: none;
}

.related-card:hover .related-card-footer .btn-sm-55 {
    background: var(--accent);
    color: #0f1b2d;
    transform: translateX(4px);
}

/* ========== Data Strip ========== */
.data-strip {
    padding: 50px 0;
    background: linear-gradient(135deg, var(--primary), #16273d);
    position: relative;
    overflow: hidden;
}

.data-strip::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('/assets/images/backpic/back-2.png') no-repeat center/cover;
    opacity: 0.1;
}

.data-strip .container-55 {
    position: relative;
    z-index: 1;
}

.data-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.data-item {
    text-align: center;
    padding: 24px 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius);
    backdrop-filter: blur(8px);
    transition: var(--transition);
}

.data-item:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}

.data-item .num {
    font-size: 34px;
    font-weight: 800;
    color: var(--accent);
    line-height: 1.2;
    margin-bottom: 6px;
}

.data-item .label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
}

.data-item .num i {
    font-size: 24px;
    margin-right: 6px;
    vertical-align: middle;
}

/* ========== CTA ========== */
.cta-section {
    padding: 60px 0 70px;
    background: var(--bg);
}

.cta-box {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: var(--radius-lg);
    padding: 48px;
    position: relative;
    overflow: hidden;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: var(--shadow-lg);
    background-image: url('/assets/images/backpic/back-3.png');
    background-size: cover;
    background-position: center;
    background-blend-mode: overlay;
}

.cta-box::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(15, 27, 45, 0.92), rgba(15, 27, 45, 0.8));
    border-radius: var(--radius-lg);
}

.cta-box > * {
    position: relative;
    z-index: 2;
}

.cta-box h2 {
    color: #fff;
    font-size: clamp(24px, 3vw, 32px);
    font-weight: 800;
    margin-bottom: 14px;
}

.cta-box p {
    color: rgba(255, 255, 255, 0.75);
    font-size: 16px;
    margin-bottom: 28px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-btns {
    display: flex;
    gap: 14px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ========== Not Found ========== */
.not-found-section {
    padding: 90px 0 100px;
    text-align: center;
    background: var(--bg);
    background-image: url('/assets/images/backpic/back-1.png');
    background-size: cover;
    background-position: center;
    position: relative;
}

.not-found-section::before {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(244, 246, 250, 0.9);
    backdrop-filter: blur(6px);
}

.not-found-section .not-found-inner {
    position: relative;
    z-index: 2;
    max-width: 600px;
    margin: 0 auto;
    padding: 48px 32px;
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
}

.not-found-section .icon-404 {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(245, 166, 35, 0.12);
    border-radius: 50%;
    margin: 0 auto 24px;
    font-size: 32px;
    color: var(--accent);
}

.not-found-section h1 {
    font-size: 32px;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 14px;
}

.not-found-section p {
    color: var(--text-muted);
    margin-bottom: 28px;
}

/* ========== Footer ========== */
.site-footer {
    background: var(--primary);
    color: rgba(255, 255, 255, 0.7);
    padding: 60px 0 0;
    border-top: 3px solid var(--accent);
}

.footer-top {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1.2fr;
    gap: 48px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand .footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 18px;
}

.footer-brand p {
    font-size: 14.5px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 0;
}

.footer-title {
    color: #fff;
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-title::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 32px;
    height: 3px;
    background: var(--accent);
    border-radius: 4px;
}

.footer-links ul,
.footer-contact ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links ul li,
.footer-contact ul li {
    margin-bottom: 12px;
    font-size: 14px;
    display: flex;
    align-items: flex-start;
    gap: 8px;
}

.footer-links ul li a {
    color: rgba(255, 255, 255, 0.65);
    text-decoration: none;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.footer-links ul li a:hover {
    color: var(--accent);
    padding-left: 4px;
}

.footer-links ul li a i,
.footer-contact ul li i {
    color: var(--accent);
    font-size: 13px;
    margin-top: 3px;
}

.footer-bottom {
    padding: 22px 0;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    font-size: 14px;
    color: rgba(255, 255, 255, 0.4);
}

.footer-bottom p {
    margin: 0;
}

/* ========== Responsive ========== */
@media (max-width: 1024px) {
    .container-55 {
        padding: 0 20px;
    }

    .nav-links {
        gap: 2px;
    }

    .nav-link {
        padding: 8px 10px;
        font-size: 14px;
    }

    .logo-text {
        font-size: 18px;
    }

    .footer-top {
        gap: 30px;
    }

    .data-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 16px;
    }

    .data-item .num {
        font-size: 28px;
    }
}

@media (max-width: 768px) {
    body {
        font-size: 15px;
    }

    .container-55 {
        padding: 0 16px;
    }

    .nav-toggle {
        display: block;
    }

    .nav-links {
        display: none;
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: rgba(15, 27, 45, 0.98);
        flex-direction: column;
        align-items: stretch;
        padding: 16px 16px 20px;
        gap: 6px;
        box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3);
        z-index: 999;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .nav-links.open {
        display: flex;
    }

    .nav-link {
        justify-content: center;
        padding: 14px 16px;
        font-size: 15px;
        border-radius: 12px;
    }

    .nav-cta {
        display: none;
    }

    .article-hero {
        padding: 52px 0 44px;
    }

    .article-title {
        font-size: 28px;
    }

    .article-meta-55 {
        gap: 8px;
    }

    .meta-badge {
        padding: 5px 12px;
        font-size: 12px;
    }

    .article-main {
        padding: 40px 0 44px;
    }

    .article-card {
        padding: 20px;
        border-radius: 16px;
    }

    .article-content {
        font-size: 15.5px;
    }

    .article-content h2 {
        font-size: 21px;
        margin: 28px 0 12px;
    }

    .article-content h3 {
        font-size: 18px;
    }

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

    .article-pagination {
        flex-direction: column;
        align-items: stretch;
    }

    .pagination-link {
        max-width: 100%;
        justify-content: center;
    }

    .side-card {
        padding: 20px;
    }

    .related-section {
        padding: 48px 0 50px;
    }

    .related-card-img {
        height: 160px;
    }

    .data-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 14px;
    }

    .data-item {
        padding: 18px 12px;
    }

    .data-item .num {
        font-size: 26px;
    }

    .cta-section {
        padding: 48px 0 52px;
    }

    .cta-box {
        padding: 36px 20px;
    }

    .cta-btns {
        flex-direction: column;
        align-items: center;
    }

    .cta-btns .btn-main,
    .cta-btns .btn-outline-light {
        width: 100%;
        justify-content: center;
    }

    .footer-top {
        grid-template-columns: 1fr;
        gap: 24px;
        padding-bottom: 30px;
    }

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

    .footer-brand .footer-logo {
        justify-content: center;
    }

    .footer-title::after {
        left: 50%;
        transform: translateX(-50%);
    }

    .footer-links ul li,
    .footer-contact ul li {
        justify-content: center;
        text-align: center;
    }

    .footer-links ul li a {
        justify-content: center;
    }
}

@media (max-width: 520px) {
    .logo-icon {
        width: 36px;
        height: 36px;
        font-size: 16px;
    }

    .logo-text {
        font-size: 16px;
    }

    .article-title {
        font-size: 22px;
    }

    .article-meta-55 {
        flex-direction: column;
        align-items: flex-start;
        gap: 6px;
    }

    .article-card {
        padding: 16px;
    }

    .related-card-img {
        height: 140px;
    }

    .data-grid {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }

    .data-item .num {
        font-size: 22px;
    }

    .data-item .label {
        font-size: 12.5px;
    }

    .cta-box h2 {
        font-size: 20px;
    }

    .footer-bottom {
        font-size: 12.5px;
    }

    .ft-desc {
        font-size: 13px;
    }
}

/* roulang page: category1 */
:root {
  --primary: #f59e0b;
  --primary-rgb: 245, 158, 11;
  --primary-dark: #d97706;
  --primary-light: #fbbf24;
  --secondary: #38bdf8;
  --secondary-dark: #0284c7;
  --dark-900: #080c16;
  --dark-800: #0d1220;
  --dark-700: #131a2e;
  --dark-600: #1a233a;
  --border: #273357;
  --border-light: #34456f;
  --text-light: #f1f5f9;
  --text-body: #cbd5e1;
  --text-muted: #8fa3bf;
  --text-dim: #64748b;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-sm: 0 2px 10px rgba(0, 0, 0, .30);
  --shadow-md: 0 10px 30px rgba(0, 0, 0, .40);
  --shadow-lg: 0 24px 60px rgba(0, 0, 0, .55);
  --shadow-primary: 0 6px 24px rgba(245, 158, 11, .18);
  --shadow-secondary: 0 6px 24px rgba(56, 189, 248, .15);
  --transition: .3s cubic-bezier(.4, 0, .2, 1);
  --font-head: 'Inter', 'Segoe UI', system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --container-max: 1280px;
}

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

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

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  background-color: var(--dark-800);
  color: var(--text-body);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

a:hover,
a:focus {
  color: var(--primary);
  outline: none;
}

button,
input,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
  border: none;
  background: none;
  outline: none;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
  border-radius: 4px;
}

.container-55 {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.section-head {
  margin-bottom: 50px;
  text-align: center;
}

.section-tag {
  display: inline-block;
  padding: 7px 18px;
  border-radius: 999px;
  background: rgba(245, 158, 11, .10);
  border: 1px solid rgba(245, 158, 11, .35);
  color: var(--primary-light);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .06em;
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--font-head);
  font-size: 38px;
  font-weight: 700;
  color: var(--text-light);
  line-height: 1.25;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: 16px;
  color: var(--text-muted);
  max-width: 660px;
  margin: 0 auto;
}

.section-light {
  background: var(--dark-700);
}

/* ========== Buttons ========== */
.btn-main {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #0d1220;
  font-weight: 700;
  font-size: 15px;
  line-height: 1;
  border: none;
  cursor: pointer;
  box-shadow: var(--shadow-primary);
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-main:hover,
.btn-main:focus {
  color: #0d1220;
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(245, 158, 11, .30);
}

.btn-main:active {
  transform: translateY(0);
  box-shadow: 0 4px 14px rgba(245, 158, 11, .20);
}

.btn-lg {
  padding: 15px 36px;
  font-size: 16px;
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 999px;
  background: transparent;
  color: var(--text-light);
  font-weight: 600;
  font-size: 15px;
  line-height: 1;
  border: 1px solid var(--border-light);
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-ghost:hover,
.btn-ghost:focus {
  color: var(--primary-light);
  border-color: var(--primary);
  background: rgba(245, 158, 11, .08);
  transform: translateY(-2px);
}

.btn-ghost:active {
  transform: translateY(0);
}

.btn-lg {
  padding: 15px 36px;
  font-size: 16px;
}

/* ========== Header / Nav ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(8, 12, 22, .85);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(39, 51, 87, .55);
  transition: background var(--transition), box-shadow var(--transition);
}

.site-header.scrolled {
  background: rgba(8, 12, 22, .96);
  box-shadow: 0 8px 30px rgba(0, 0, 0, .45);
}

.main-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 74px;
  gap: 20px;
  flex-wrap: nowrap;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  color: var(--text-light);
  font-family: var(--font-head);
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -0.01em;
  transition: opacity var(--transition);
}

.brand-logo:hover {
  color: var(--text-light);
  opacity: .85;
}

.logo-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #0d1220;
  font-size: 17px;
  box-shadow: var(--shadow-primary);
}

.logo-text {
  white-space: nowrap;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 1;
  justify-content: center;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 10px 18px;
  border-radius: 999px;
  color: var(--text-body);
  font-size: 14px;
  font-weight: 600;
  transition: all var(--transition);
  white-space: nowrap;
}

.nav-link i {
  font-size: 13px;
  color: var(--text-muted);
  transition: color var(--transition);
}

.nav-link:hover,
.nav-link:focus {
  color: var(--text-light);
  background: rgba(56, 189, 248, .08);
}

.nav-link:hover i,
.nav-link:focus i {
  color: var(--secondary);
}

.nav-link.active {
  color: var(--primary-light);
  background: rgba(245, 158, 11, .12);
  border: 1px solid rgba(245, 158, 11, .25);
}

.nav-link.active i {
  color: var(--primary);
}

.nav-cta {
  flex-shrink: 0;
}

.nav-cta .btn-main {
  padding: 10px 22px;
  font-size: 14px;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--dark-700);
  border: 1px solid var(--border);
  color: var(--text-light);
  font-size: 18px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}

.nav-toggle:hover {
  background: var(--dark-600);
  border-color: var(--primary);
  color: var(--primary);
}

/* ========== Hero ========== */
.hero {
  position: relative;
  padding: 110px 0 90px;
  background-color: var(--dark-900);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  opacity: .35;
  z-index: 0;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(8, 12, 22, .75) 0%, rgba(13, 18, 32, .92) 100%),
    linear-gradient(90deg, rgba(8, 12, 22, .85) 0%, rgba(8, 12, 22, .30) 100%);
}

.hero .container-55 {
  position: relative;
  z-index: 2;
}

.hero-grid-lines {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(56, 189, 248, .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56, 189, 248, .05) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at 50% 20%, rgba(0, 0, 0, .8), transparent 70%);
}

.hero-content {
  max-width: 760px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 18px;
  border-radius: 999px;
  background: rgba(56, 189, 248, .10);
  border: 1px solid rgba(56, 189, 248, .30);
  color: var(--secondary);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .03em;
  margin-bottom: 24px;
}

.pulse-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--secondary);
  box-shadow: 0 0 0 0 rgba(56, 189, 248, .7);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(56, 189, 248, .7);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(56, 189, 248, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(56, 189, 248, 0);
  }
}

.hero-title {
  font-family: var(--font-head);
  font-size: 52px;
  font-weight: 800;
  line-height: 1.12;
  color: var(--text-light);
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.hero-title .accent {
  color: var(--primary);
  position: relative;
}

.hero-subtitle {
  font-size: 17px;
  color: var(--text-body);
  line-height: 1.7;
  margin-bottom: 32px;
  max-width: 640px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

/* ========== Stats ========== */
.stats-section {
  position: relative;
  z-index: 3;
  padding: 0 0 10px;
  margin-top: -40px;
}

.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.stat-card {
  background: var(--dark-700);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition);
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}

.stat-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-light);
  box-shadow: var(--shadow-lg);
}

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

.stat-number {
  font-family: var(--font-head);
  font-size: 42px;
  font-weight: 800;
  color: var(--text-light);
  line-height: 1.1;
  margin-bottom: 6px;
  letter-spacing: -0.02em;
}

.stat-number .stat-unit {
  font-size: 20px;
  color: var(--primary);
  margin-left: 2px;
}

.stat-label {
  font-size: 14px;
  color: var(--text-muted);
  font-weight: 500;
}

/* ========== Guide Categories ========== */
.guide-section {
  padding: 90px 0;
}

.guide-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.guide-card {
  background: var(--dark-700);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}

.guide-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(245, 158, 11, .35);
}

.guide-card-media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
}

.guide-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}

.guide-card:hover .guide-card-media img {
  transform: scale(1.06);
}

.guide-card-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8, 12, 22, .10) 0%, rgba(8, 12, 22, .70) 100%);
}

.guide-card-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  padding: 5px 14px;
  border-radius: 999px;
  background: rgba(8, 12, 22, .75);
  backdrop-filter: blur(10px);
  color: var(--primary-light);
  font-size: 12px;
  font-weight: 600;
  border: 1px solid rgba(245, 158, 11, .25);
}

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

.guide-card-title {
  font-family: var(--font-head);
  font-size: 19px;
  font-weight: 700;
  color: var(--text-light);
  margin-bottom: 10px;
  transition: color var(--transition);
}

.guide-card:hover .guide-card-title {
  color: var(--primary-light);
}

.guide-card-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 18px;
  flex: 1;
}

.guide-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.guide-card-meta {
  font-size: 13px;
  color: var(--text-dim);
}

.guide-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--secondary);
}

.guide-card-link:hover {
  color: var(--primary);
}

/* ========== Features ========== */
.features-section {
  padding: 90px 0;
  background: var(--dark-900);
  position: relative;
  overflow: hidden;
}

.features-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(56, 189, 248, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56, 189, 248, .035) 1px, transparent 1px);
  background-size: 44px 44px;
  pointer-events: none;
}

.feature-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.feature-media {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
}

.feature-media img {
  width: 100%;
  height: 460px;
  object-fit: cover;
}

.feature-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(8, 12, 22, .50), rgba(8, 12, 22, .05));
}

.feature-media-badge {
  position: absolute;
  bottom: 20px;
  left: 20px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 999px;
  background: rgba(8, 12, 22, .75);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(245, 158, 11, .35);
  color: var(--primary-light);
  font-size: 14px;
  font-weight: 600;
}

.feature-content {
  padding: 10px 0;
}

.feature-content .section-tag {
  margin-bottom: 12px;
}

.feature-content .section-title {
  text-align: left;
  font-size: 34px;
}

.feature-content .section-subtitle {
  text-align: left;
  margin: 0 0 30px;
}

.feature-list {
  display: grid;
  gap: 14px;
}

.feature-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 16px 20px;
  border-radius: var(--radius-md);
  background: var(--dark-700);
  border: 1px solid var(--border);
  transition: all var(--transition);
}

.feature-item:hover {
  border-color: rgba(56, 189, 248, .35);
  background: var(--dark-600);
  transform: translateX(4px);
}

.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(56, 189, 248, .12);
  color: var(--secondary);
  font-size: 18px;
  flex-shrink: 0;
  border: 1px solid rgba(56, 189, 248, .18);
}

.feature-text h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-light);
  margin-bottom: 4px;
}

.feature-text p {
  font-size: 14px;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.6;
}

/* ========== Process ========== */
.process-section {
  padding: 90px 0;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: process-counter;
}

.process-item {
  position: relative;
  background: var(--dark-700);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 34px 24px 28px;
  transition: all var(--transition);
  overflow: hidden;
}

.process-item::before {
  counter-increment: process-counter;
  content: "0" counter(process-counter);
  position: absolute;
  top: 16px;
  right: 20px;
  font-family: var(--font-head);
  font-size: 52px;
  font-weight: 800;
  color: rgba(245, 158, 11, .08);
  line-height: 1;
  pointer-events: none;
}

.process-item:hover {
  transform: translateY(-6px);
  border-color: rgba(245, 158, 11, .30);
  box-shadow: var(--shadow-md);
}

.process-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 54px;
  height: 54px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(245, 158, 11, .15), rgba(245, 158, 11, .04));
  border: 1px solid rgba(245, 158, 11, .25);
  color: var(--primary);
  font-size: 22px;
  margin-bottom: 18px;
  transition: all var(--transition);
}

.process-item:hover .process-icon {
  transform: scale(1.06);
  box-shadow: var(--shadow-primary);
}

.process-step-num {
  display: inline-block;
  padding: 3px 12px;
  border-radius: 999px;
  background: rgba(56, 189, 248, .10);
  border: 1px solid rgba(56, 189, 248, .25);
  color: var(--secondary);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .05em;
  margin-bottom: 12px;
}

.process-item h4 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-light);
  margin-bottom: 8px;
}

.process-item p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  margin: 0;
}

/* ========== Security ========== */
.security-section {
  padding: 90px 0;
  background-color: var(--dark-900);
  position: relative;
  overflow: hidden;
}

.security-section .security-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  opacity: .18;
}

.security-section .container-55 {
  position: relative;
  z-index: 2;
}

.security-panel {
  background: rgba(13, 18, 32, .88);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(56, 189, 248, .20);
  border-radius: var(--radius-xl);
  padding: 48px;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.security-panel::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--secondary), transparent);
}

.security-panel-head {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 28px;
}

.security-panel-head-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: rgba(56, 189, 248, .12);
  border: 1px solid rgba(56, 189, 248, .30);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--secondary);
  font-size: 22px;
}

.security-panel-title {
  font-family: var(--font-head);
  font-size: 24px;
  font-weight: 700;
  color: var(--text-light);
  margin: 0;
}

.security-panel-subtitle {
  font-size: 14px;
  color: var(--text-muted);
  margin: 2px 0 0;
}

.security-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.security-item {
  padding: 20px;
  border-radius: var(--radius-md);
  background: rgba(8, 12, 22, .60);
  border: 1px solid var(--border);
  transition: all var(--transition);
}

.security-item:hover {
  border-color: rgba(56, 189, 248, .35);
  background: rgba(8, 12, 22, .85);
  transform: translateY(-3px);
}

.security-item-icon {
  width: 40px;
  height: 40px;
  border-radius: 11px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(245, 158, 11, .12);
  color: var(--primary);
  font-size: 16px;
  margin-bottom: 14px;
  border: 1px solid rgba(245, 158, 11, .18);
}

.security-item h5 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-light);
  margin-bottom: 6px;
}

.security-item p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
  margin: 0;
}

/* ========== FAQ ========== */
.faq-section {
  padding: 90px 0;
}

.faq-wrap {
  max-width: 860px;
  margin: 0 auto;
}

.faq-accordion {
  display: grid;
  gap: 14px;
}

.faq-item {
  background: var(--dark-700);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition);
}

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

.faq-item-header {
  padding: 0;
}

.faq-item-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 20px 24px;
  background: transparent;
  color: var(--text-light);
  font-size: 16px;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  transition: background var(--transition);
  border: none;
}

.faq-item-btn:hover {
  background: rgba(56, 189, 248, .04);
}

.faq-item-btn .faq-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: rgba(56, 189, 248, .10);
  color: var(--secondary);
  font-size: 12px;
  flex-shrink: 0;
  transition: all var(--transition);
}

.faq-item.open .faq-icon {
  transform: rotate(180deg);
  background: rgba(245, 158, 11, .15);
  color: var(--primary);
}

.faq-item-body {
  padding: 0 24px 22px;
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ========== CTA ========== */
.cta-section {
  padding: 90px 0;
  background-color: var(--dark-900);
  position: relative;
  overflow: hidden;
}

.cta-section .cta-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-3.png');
  background-size: cover;
  background-position: center;
  opacity: .20;
}

.cta-section .container-55 {
  position: relative;
  z-index: 2;
}

.cta-card {
  position: relative;
  background: linear-gradient(135deg, rgba(245, 158, 11, .12), rgba(56, 189, 248, .08));
  border: 1px solid rgba(245, 158, 11, .30);
  border-radius: var(--radius-xl);
  padding: 56px 48px;
  text-align: center;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.cta-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(56, 189, 248, .04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56, 189, 248, .04) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

.cta-card h2 {
  font-family: var(--font-head);
  font-size: 32px;
  font-weight: 800;
  color: var(--text-light);
  margin-bottom: 14px;
  letter-spacing: -0.01em;
}

.cta-card p {
  font-size: 16px;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto 32px;
  line-height: 1.7;
}

.cta-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
}

.cta-actions .btn-main,
.cta-actions .btn-ghost {
  position: relative;
  z-index: 2;
}

/* ========== Footer ========== */
.site-footer {
  background: var(--dark-900);
  border-top: 1px solid rgba(39, 51, 87, .5);
  padding: 64px 0 24px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand .footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.footer-brand .logo-text {
  font-family: var(--font-head);
  font-size: 19px;
  font-weight: 800;
  color: var(--text-light);
}

.footer-brand p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 360px;
}

.footer-title {
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 700;
  color: var(--text-light);
  margin-bottom: 18px;
  letter-spacing: .02em;
}

.footer-links ul,
.footer-contact ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}

.footer-links li a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-body);
  font-size: 14px;
  transition: all var(--transition);
}

.footer-links li a i {
  color: var(--primary);
  font-size: 12px;
}

.footer-links li a:hover {
  color: var(--primary-light);
  transform: translateX(3px);
}

.footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-body);
  font-size: 14px;
}

.footer-contact li i {
  width: 20px;
  color: var(--secondary);
  font-size: 14px;
  text-align: center;
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(39, 51, 87, .4);
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: var(--text-dim);
  margin: 0;
}

/* ========== Responsive ========== */
@media (max-width: 1024px) {
  .hero-title {
    font-size: 44px;
  }

  .section-title {
    font-size: 32px;
  }

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

  .process-grid {
    grid-template-columns: repeat(2, 1fr);
    row-gap: 24px;
  }

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

  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }

  .feature-wrap {
    gap: 36px;
  }

  .feature-media img {
    height: 400px;
  }
}

@media (max-width: 992px) {
  .main-nav {
    height: auto;
    padding: 14px 0;
  }

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

  .nav-links {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    right: -320px;
    width: 300px;
    height: 100vh;
    background: var(--dark-800);
    border-left: 1px solid var(--border);
    padding: 80px 24px 30px;
    gap: 8px;
    transition: right var(--transition);
    z-index: 999;
    justify-content: flex-start;
    align-items: stretch;
  }

  .nav-links.open {
    right: 0;
    box-shadow: var(--shadow-lg);
  }

  .nav-links .nav-link {
    justify-content: flex-start;
    padding: 14px 18px;
    font-size: 15px;
  }

  .nav-links .nav-link i {
    width: 24px;
    text-align: center;
  }

  .nav-cta {
    display: none;
  }

  .brand-logo {
    font-size: 17px;
  }

  .brand-logo .logo-text {
    white-space: normal;
    max-width: 130px;
  }

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

  .feature-media {
    max-width: 720px;
    margin: 0 auto;
  }

  .feature-content .section-title,
  .feature-content .section-subtitle {
    text-align: center;
  }

  .feature-content .section-tag {
    display: table;
    margin-left: auto;
    margin-right: auto;
  }
}

@media (max-width: 767px) {
  .hero {
    padding: 80px 0 70px;
  }

  .hero-title {
    font-size: 36px;
  }

  .hero-subtitle {
    font-size: 16px;
  }

  .stats-row {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }

  .stat-number {
    font-size: 30px;
  }

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

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

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

  .footer-top {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .section-title {
    font-size: 28px;
  }

  .section-subtitle {
    font-size: 15px;
  }

  .security-panel {
    padding: 30px 22px;
  }

  .security-panel-head {
    flex-direction: column;
    text-align: center;
  }

  .cta-card {
    padding: 40px 24px;
  }

  .cta-card h2 {
    font-size: 27px;
  }

  .faq-item-btn {
    padding: 16px 18px;
    font-size: 15px;
  }

  .faq-item-body {
    padding: 0 18px 18px;
    font-size: 14px;
  }

  .feature-media img {
    height: 300px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-actions .btn-main,
  .hero-actions .btn-ghost {
    width: 100%;
  }
}

@media (max-width: 520px) {
  .container-55 {
    padding: 0 18px;
  }

  .brand-logo {
    gap: 8px;
    font-size: 16px;
  }

  .logo-icon {
    width: 32px;
    height: 32px;
    font-size: 14px;
    border-radius: 8px;
  }

  .brand-logo .logo-text {
    max-width: 110px;
    line-height: 1.3;
  }

  .hero-title {
    font-size: 30px;
  }

  .hero-badge {
    font-size: 12px;
    padding: 6px 14px;
  }

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

  .stat-number {
    font-size: 26px;
  }

  .guide-section,
  .features-section,
  .process-section,
  .security-section,
  .faq-section,
  .cta-section {
    padding: 64px 0;
  }

  .section-title {
    font-size: 25px;
  }

  .security-panel-title {
    font-size: 20px;
  }

  .security-panel-head-icon {
    width: 44px;
    height: 44px;
    font-size: 18px;
  }

  .security-item {
    padding: 16px;
  }

  .cta-actions {
    flex-direction: column;
  }

  .cta-actions .btn-main,
  .cta-actions .btn-ghost {
    width: 100%;
  }

  .footer-contact li,
  .footer-links li a {
    font-size: 13px;
  }
}

/* roulang page: category2 */
:root {
            --primary: #0d1a2b;
            --primary-deep: #070f1c;
            --primary-2: #122a44;
            --accent: #f0b23a;
            --accent-deep: #d99a25;
            --accent-soft: rgba(240, 178, 58, .12);
            --bg: #f4f6fa;
            --bg-soft: #ebeff5;
            --card: #ffffff;
            --text: #1b2839;
            --text-weak: #5b6b80;
            --text-light: #a8b6c7;
            --border: #e2e7ef;
            --radius: 18px;
            --radius-sm: 12px;
            --shadow-sm: 0 2px 10px rgba(13, 26, 43, .05);
            --shadow-md: 0 8px 32px rgba(13, 26, 43, .09);
            --shadow-lg: 0 18px 50px rgba(13, 26, 43, .14);
            --transition: all .3s ease;
            --nav-bg: rgba(9, 16, 28, .92);
        }
        *,
        *::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", system-ui, -apple-system, sans-serif;
            color: var(--text);
            background: var(--bg);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-deep);
        }
        img {
            max-width: 100%;
            display: block;
            height: auto;
        }
        ul,
        ol {
            list-style: none;
        }
        button,
        input {
            font-family: inherit;
            border: none;
            outline: none;
            background: none;
        }
        .container-55 {
            width: 100%;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 28px;
        }
        .section {
            padding: 96px 0;
        }
        .section-head {
            max-width: 720px;
            margin: 0 auto 56px;
            text-align: center;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--accent-deep);
            background: var(--accent-soft);
            border: 1px solid rgba(240, 178, 58, .25);
            border-radius: 40px;
            padding: 6px 18px;
            margin-bottom: 18px;
        }
        .section-title {
            font-size: clamp(30px, 4vw, 40px);
            font-weight: 800;
            line-height: 1.25;
            color: var(--primary);
            letter-spacing: -1px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-weak);
            margin-top: 14px;
            line-height: 1.8;
        }

        /* ===== Buttons ===== */
        .btn-main,
        .btn-ghost,
        .btn-dark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 14px 32px;
            border-radius: 50px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1;
            white-space: nowrap;
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }
        .btn-main {
            background: linear-gradient(135deg, #f7bd44, var(--accent-deep));
            color: #14181f;
            box-shadow: 0 6px 20px rgba(240, 178, 58, .32);
        }
        .btn-main:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(240, 178, 58, .42);
            color: #14181f;
        }
        .btn-main:active {
            transform: translateY(0);
            box-shadow: 0 4px 14px rgba(240, 178, 58, .3);
        }
        .btn-ghost {
            background: transparent;
            color: #dce5f0;
            border: 1px solid rgba(255, 255, 255, .3);
            backdrop-filter: blur(4px);
        }
        .btn-ghost:hover {
            background: rgba(255, 255, 255, .08);
            border-color: rgba(255, 255, 255, .55);
            color: #fff;
        }
        .btn-dark {
            background: var(--primary);
            color: #fff;
            box-shadow: var(--shadow-sm);
        }
        .btn-dark:hover {
            background: var(--primary-2);
            transform: translateY(-2px);
            color: #fff;
        }

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--nav-bg);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(255, 255, 255, .05);
            box-shadow: 0 4px 24px rgba(0, 0, 0, .28);
        }
        .main-nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 15px 0;
        }
        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 42px;
            height: 42px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 14px;
            background: linear-gradient(135deg, var(--accent), var(--accent-deep));
            color: #14181f;
            font-size: 18px;
            box-shadow: 0 4px 14px rgba(240, 178, 58, .3);
        }
        .logo-text {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            letter-spacing: 1px;
            white-space: nowrap;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, .04);
            border: 1px solid rgba(255, 255, 255, .06);
            padding: 5px;
            border-radius: 16px;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 18px;
            border-radius: 11px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-light);
            transition: var(--transition);
        }
        .nav-link i {
            font-size: 14px;
        }
        .nav-link:hover {
            color: #fff;
            background: rgba(255, 255, 255, .07);
        }
        .nav-link.active {
            color: #14181f;
            background: linear-gradient(135deg, var(--accent), var(--accent-deep));
            font-weight: 700;
            box-shadow: 0 4px 16px rgba(240, 178, 58, .28);
        }
        .nav-cta {
            display: flex;
            align-items: center;
        }
        .nav-cta .btn-main {
            padding: 11px 24px;
            font-size: 14px;
            border-radius: 50px;
        }
        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(255, 255, 255, .06);
            color: #fff;
            font-size: 18px;
            align-items: center;
            justify-content: center;
            border: 1px solid rgba(255, 255, 255, .08);
            cursor: pointer;
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, .12);
        }

        /* ===== Page Banner ===== */
        .page-banner {
            position: relative;
            padding: 120px 0 100px;
            background: linear-gradient(135deg, #08101f 0%, #0b1f36 55%, #132d4a 100%);
            overflow: hidden;
        }
        .page-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url("/assets/images/backpic/back-1.png");
            background-size: cover;
            background-position: center;
            opacity: .34;
        }
        .page-banner::after {
            content: "";
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 80% 20%, rgba(240, 178, 58, .18) 0%, transparent 50%);
            pointer-events: none;
        }
        .banner-inner {
            position: relative;
            z-index: 2;
            max-width: 840px;
        }
        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 2px;
            color: var(--accent);
            background: rgba(240, 178, 58, .12);
            border: 1px solid rgba(240, 178, 58, .3);
            border-radius: 40px;
            padding: 7px 20px;
            margin-bottom: 24px;
        }
        .banner-badge::before {
            content: "";
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: currentColor;
            box-shadow: 0 0 12px currentColor;
        }
        .banner-inner h1 {
            font-size: clamp(34px, 5.5vw, 54px);
            font-weight: 900;
            color: #fff;
            line-height: 1.18;
            letter-spacing: -1.5px;
            margin-bottom: 22px;
        }
        .banner-inner h1 span {
            color: var(--accent);
        }
        .banner-inner p {
            font-size: 17px;
            line-height: 1.85;
            color: rgba(220, 230, 244, .86);
            max-width: 680px;
            margin-bottom: 36px;
        }
        .banner-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }
        .banner-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 42px;
        }
        .banner-meta .meta-chip {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            border-radius: 40px;
            background: rgba(255, 255, 255, .05);
            border: 1px solid rgba(255, 255, 255, .1);
            font-size: 13px;
            color: rgba(220, 230, 244, .75);
        }
        .banner-meta .meta-chip i {
            color: var(--accent);
            font-size: 13px;
        }

        /* ===== Overview Section ===== */
        .overview-section {
            background: var(--bg);
        }
        .overview-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .overview-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 36px 32px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .overview-card::after {
            content: "";
            position: absolute;
            right: -40px;
            top: -40px;
            width: 120px;
            height: 120px;
            border-radius: 50%;
            background: var(--accent-soft);
            opacity: .6;
            transition: var(--transition);
        }
        .overview-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
            border-color: rgba(240, 178, 58, .4);
        }
        .overview-card:hover::after {
            transform: scale(1.4);
            opacity: 1;
        }
        .overview-icon {
            width: 58px;
            height: 58px;
            border-radius: 16px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 22px;
            background: var(--primary);
            color: var(--accent);
            box-shadow: 0 6px 18px rgba(13, 26, 43, .18);
        }
        .overview-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .overview-card p {
            font-size: 15px;
            color: var(--text-weak);
            line-height: 1.8;
        }

        /* ===== Guide Categories ===== */
        .guide-cats-section {
            background: var(--bg-soft);
        }
        .cats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .cat-card {
            background: var(--card);
            border-radius: var(--radius);
            padding: 30px 26px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .cat-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, transparent, var(--accent), transparent);
            opacity: 0;
            transition: var(--transition);
        }
        .cat-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(240, 178, 58, .35);
        }
        .cat-card:hover::before {
            opacity: 1;
        }
        .cat-icon {
            width: 54px;
            height: 54px;
            border-radius: 15px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 20px;
            background: var(--accent-soft);
            color: var(--accent-deep);
            transition: var(--transition);
        }
        .cat-card:hover .cat-icon {
            background: linear-gradient(135deg, var(--accent), var(--accent-deep));
            color: #14181f;
            box-shadow: 0 6px 18px rgba(240, 178, 58, .3);
        }
        .cat-card h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .cat-card p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .cat-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
        }
        .cat-link i {
            transition: transform .3s;
        }
        .cat-card:hover .cat-link {
            color: var(--accent-deep);
        }
        .cat-card:hover .cat-link i {
            transform: translateX(4px);
        }

        /* ===== Hot Guides ===== */
        .hot-guides-section {
            background: var(--bg);
        }
        .guide-search {
            position: relative;
            max-width: 460px;
            margin: 0 auto 48px;
        }
        .guide-search i {
            position: absolute;
            left: 20px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-weak);
            font-size: 15px;
            pointer-events: none;
        }
        .guide-search input {
            width: 100%;
            padding: 15px 18px 15px 50px;
            border-radius: 50px;
            border: 2px solid var(--border);
            background: var(--card);
            font-size: 15px;
            color: var(--text);
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .guide-search input::placeholder {
            color: #9aa7b8;
        }
        .guide-search input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 4px var(--accent-soft);
        }
        .guides-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .guide-card {
            background: var(--card);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .guide-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(240, 178, 58, .3);
        }
        .guide-img {
            position: relative;
            height: 200px;
            overflow: hidden;
            background: var(--primary);
        }
        .guide-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }
        .guide-card:hover .guide-img img {
            transform: scale(1.06);
        }
        .guide-img::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 55%, rgba(8, 16, 28, .5));
        }
        .guide-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            z-index: 2;
            padding: 6px 14px;
            border-radius: 30px;
            font-size: 12px;
            font-weight: 600;
            color: #14181f;
            background: linear-gradient(135deg, var(--accent), var(--accent-deep));
            box-shadow: 0 4px 12px rgba(240, 178, 58, .3);
        }
        .guide-body {
            padding: 24px 24px 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .guide-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.45;
            margin-bottom: 10px;
            transition: var(--transition);
        }
        .guide-card:hover .guide-body h3 {
            color: var(--accent-deep);
        }
        .guide-body p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.75;
            flex: 1;
            margin-bottom: 16px;
        }
        .guide-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            padding-top: 16px;
            border-top: 1px solid var(--border);
            font-size: 13px;
            color: #8a97a8;
        }
        .guide-meta i {
            font-size: 13px;
            color: var(--accent-deep);
        }

        /* ===== Path Section ===== */
        .path-section {
            background: linear-gradient(135deg, #08101f 0%, #0e1f37 100%);
            position: relative;
            overflow: hidden;
        }
        .path-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url("/assets/images/backpic/back-2.png");
            background-size: cover;
            background-position: center;
            opacity: .12;
        }
        .path-section .section-title {
            color: #fff;
        }
        .path-section .section-desc {
            color: rgba(255, 255, 255, .65);
        }
        .path-section .section-tag {
            border-color: rgba(240, 178, 58, .4);
        }
        .path-steps {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            counter-reset: step;
        }
        .path-step {
            background: rgba(255, 255, 255, .04);
            border: 1px solid rgba(255, 255, 255, .08);
            border-radius: var(--radius);
            padding: 34px 28px;
            position: relative;
            backdrop-filter: blur(6px);
            transition: var(--transition);
        }
        .path-step:hover {
            background: rgba(255, 255, 255, .07);
            border-color: rgba(240, 178, 58, .35);
            transform: translateY(-4px);
        }
        .step-num {
            font-size: 44px;
            font-weight: 900;
            line-height: 1;
            color: transparent;
            background: linear-gradient(135deg, var(--accent), var(--accent-deep));
            -webkit-background-clip: text;
            background-clip: text;
            margin-bottom: 18px;
        }
        .path-step::after {
            content: "";
            position: absolute;
            right: -15px;
            top: 50%;
            width: 30px;
            height: 2px;
            background: linear-gradient(90deg, rgba(240, 178, 58, .6), transparent);
        }
        .path-step:last-child::after {
            display: none;
        }
        .path-step h3 {
            font-size: 18px;
            color: #fff;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .path-step p {
            font-size: 14px;
            color: rgba(255, 255, 255, .6);
            line-height: 1.7;
        }

        /* ===== Stats Panel ===== */
        .stats-section {
            background: var(--bg);
        }
        .stats-panel {
            background: linear-gradient(135deg, #0a1524, #132c49);
            border-radius: calc(var(--radius) + 8px);
            padding: 60px 40px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .stats-panel::before {
            content: "";
            position: absolute;
            top: -60%;
            right: -20%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(240, 178, 58, .18), transparent 65%);
            pointer-events: none;
        }
        .stats-panel::after {
            content: "";
            position: absolute;
            bottom: -40%;
            left: -10%;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 255, 255, .05), transparent 70%);
            pointer-events: none;
        }
        .stat-item {
            text-align: center;
            position: relative;
            z-index: 2;
        }
        .stat-num {
            font-size: clamp(36px, 5vw, 52px);
            font-weight: 900;
            line-height: 1.1;
            color: var(--accent);
            letter-spacing: -1px;
        }
        .stat-label {
            font-size: 15px;
            color: rgba(255, 255, 255, .65);
            margin-top: 10px;
            font-weight: 500;
        }
        .stat-divider {
            width: 40px;
            height: 2px;
            background: linear-gradient(90deg, var(--accent), transparent);
            margin: 14px auto 0;
            border-radius: 2px;
        }

        /* ===== Insight Section ===== */
        .insight-section {
            background: var(--bg-soft);
        }
        .insight-list {
            display: flex;
            flex-direction: column;
            gap: 24px;
            max-width: 920px;
            margin: 0 auto;
        }
        .insight-item {
            background: var(--card);
            border-radius: var(--radius);
            padding: 32px 36px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            display: flex;
            gap: 24px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .insight-item::before {
            content: "";
            position: absolute;
            left: 0;
            top: 0;
            width: 4px;
            height: 100%;
            background: linear-gradient(180deg, var(--accent), var(--accent-deep));
            border-radius: 0 4px 4px 0;
            opacity: 0;
            transition: var(--transition);
        }
        .insight-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateX(4px);
        }
        .insight-item:hover::before {
            opacity: 1;
        }
        .insight-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            background: var(--accent-soft);
            color: var(--accent-deep);
        }
        .insight-body h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .insight-body p {
            font-size: 15px;
            color: var(--text-weak);
            line-height: 1.8;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg);
        }
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .faq-item {
            background: var(--card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            padding: 0;
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(240, 178, 58, .3);
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 22px 28px;
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            text-align: left;
            cursor: pointer;
            transition: var(--transition);
            background: transparent;
        }
        .faq-question:hover {
            color: var(--accent-deep);
        }
        .faq-question .faq-icon {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: var(--accent-soft);
            color: var(--accent-deep);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            flex-shrink: 0;
            transition: transform .3s;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .4s ease;
        }
        .faq-answer-inner {
            padding: 0 28px 24px;
            font-size: 15px;
            color: var(--text-weak);
            line-height: 1.8;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 90px 0;
            background: linear-gradient(135deg, #08101f, #122a44);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url("/assets/images/backpic/back-3.png");
            background-size: cover;
            background-position: center;
            opacity: .18;
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            max-width: 760px;
            margin: 0 auto;
            text-align: center;
        }
        .cta-inner h2 {
            font-size: clamp(30px, 4.5vw, 46px);
            font-weight: 900;
            color: #fff;
            letter-spacing: -1px;
            margin-bottom: 18px;
        }
        .cta-inner p {
            font-size: 16px;
            color: rgba(255, 255, 255, .7);
            line-height: 1.8;
            margin-bottom: 34px;
        }
        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            justify-content: center;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #06101f;
            padding: 70px 0 0;
            border-top: 1px solid rgba(255, 255, 255, .04);
        }
        .footer-top {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, .06);
        }
        .footer-brand .footer-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 20px;
        }
        .footer-brand .footer-logo .logo-text {
            font-size: 19px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.85;
            color: rgba(255, 255, 255, .5);
            max-width: 360px;
        }
        .footer-title {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 22px;
            letter-spacing: .5px;
        }
        .footer-links ul,
        .footer-contact ul {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, .55);
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }
        .footer-links a i {
            font-size: 12px;
            color: var(--accent);
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-contact ul li {
            color: rgba(255, 255, 255, .55);
            font-size: 14px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-contact ul li i {
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: rgba(255, 255, 255, .05);
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            flex-shrink: 0;
        }
        .footer-bottom {
            padding: 22px 0;
            text-align: center;
        }
        .footer-bottom p {
            font-size: 13px;
            color: rgba(255, 255, 255, .32);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .container-55 {
                padding: 0 24px;
            }
            .nav-link {
                padding: 9px 13px;
                font-size: 13px;
            }
            .logo-text {
                font-size: 18px;
            }
            .nav-cta .btn-main {
                padding: 10px 18px;
                font-size: 13px;
            }
            .overview-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 20px;
            }
            .cats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .guides-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .path-steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .path-step::after {
                display: none;
            }
            .stats-panel {
                grid-template-columns: repeat(2, 1fr);
                padding: 48px 32px;
            }
        }
        @media (max-width: 768px) {
            .section {
                padding: 72px 0;
            }
            .nav-toggle {
                display: inline-flex;
            }
            .nav-links {
                position: fixed;
                top: 76px;
                right: 20px;
                left: 20px;
                flex-direction: column;
                align-items: stretch;
                background: rgba(9, 16, 28, .98);
                border: 1px solid rgba(255, 255, 255, .1);
                border-radius: 18px;
                padding: 14px;
                gap: 6px;
                transform: translateY(-14px);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                box-shadow: var(--shadow-lg);
                z-index: 999;
            }
            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-link {
                padding: 13px 18px;
                font-size: 15px;
            }
            .nav-cta {
                display: none;
            }
            .page-banner {
                padding: 90px 0 72px;
            }
            .overview-grid {
                grid-template-columns: 1fr;
            }
            .guides-grid {
                grid-template-columns: 1fr;
            }
            .cats-grid {
                grid-template-columns: 1fr;
            }
            .path-steps {
                grid-template-columns: 1fr;
            }
            .insight-item {
                flex-direction: column;
                gap: 16px;
                padding: 26px 24px;
            }
            .stats-panel {
                grid-template-columns: 1fr;
                gap: 32px;
                padding: 44px 28px;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .banner-actions {
                flex-direction: column;
                align-items: flex-start;
            }
            .banner-actions .btn-main,
            .banner-actions .btn-ghost {
                width: 100%;
            }
            .section-head {
                margin-bottom: 40px;
            }
        }
        @media (max-width: 520px) {
            .container-55 {
                padding: 0 18px;
            }
            .site-header {
                padding: 0;
            }
            .main-nav {
                padding: 12px 0;
                gap: 10px;
            }
            .logo-icon {
                width: 36px;
                height: 36px;
                border-radius: 11px;
                font-size: 15px;
            }
            .logo-text {
                font-size: 16px;
            }
            .nav-links {
                top: 68px;
            }
            .banner-inner h1 {
                font-size: 30px;
            }
            .banner-inner p {
                font-size: 15px;
            }
            .section-title {
                font-size: 28px;
            }
            .overview-card {
                padding: 28px 24px;
            }
            .guide-body {
                padding: 20px;
            }
            .faq-question {
                padding: 18px 20px;
                font-size: 15px;
            }
            .faq-answer-inner {
                padding: 0 20px 20px;
            }
            .stats-panel {
                border-radius: 18px;
                padding: 36px 20px;
            }
            .stat-num {
                font-size: 36px;
            }
            .cta-actions {
                flex-direction: column;
                align-items: stretch;
            }
        }

/* roulang page: category3 */
:root{
  --primary:#101a29;--primary-deep:#0a111c;--primary-light:#1a2735;
  --accent:#ff4655;--accent-hover:#e63946;--teal:#00c9a7;--amber:#f4a261;
  --bg:#f4f6fb;--bg-alt:#eef0f6;--card:#ffffff;
  --text:#1a2332;--text-muted:#6b7683;--text-light:#f0f2f5;
  --border:#e2e6ee;--radius-lg:20px;--radius-md:14px;--radius-sm:8px;
  --shadow-sm:0 2px 10px rgba(16,26,41,.06);
  --shadow-md:0 6px 24px rgba(16,26,41,.08);
  --shadow-lg:0 12px 40px rgba(16,26,41,.14);
  --transition:.3s ease;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.7;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit;transition:var(--transition)}
img{max-width:100%;height:auto;display:block}
.container-55{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section-pad{padding:90px 0}
/* ===== Header ===== */
.site-header{position:sticky;top:0;z-index:100;background:rgba(10,17,28,.96);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.06);box-shadow:0 4px 24px rgba(0,0,0,.3)}
.main-nav{display:flex;align-items:center;justify-content:space-between;padding:16px 0;gap:24px}
.brand-logo{display:flex;align-items:center;gap:12px;flex-shrink:0}
.logo-icon{display:flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:10px;background:linear-gradient(135deg,var(--accent),#ff7a59);color:#fff;font-size:17px;box-shadow:0 4px 14px rgba(255,70,85,.35)}
.logo-text{font-size:20px;font-weight:800;color:var(--text-light);letter-spacing:.5px;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;flex:1;justify-content:center}
.nav-link{display:flex;align-items:center;gap:7px;padding:9px 18px;border-radius:var(--radius-sm);color:rgba(240,242,245,.75);font-size:15px;font-weight:500;transition:var(--transition)}
.nav-link i{font-size:14px;opacity:.8}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.08)}
.nav-link.active{color:#fff;background:linear-gradient(135deg,rgba(255,70,85,.22),rgba(255,70,85,.1));box-shadow:inset 0 0 0 1px rgba(255,70,85,.28)}
.nav-cta .btn-main{display:inline-flex;align-items:center;gap:8px;background:linear-gradient(135deg,var(--accent),#ff7a59);color:#fff;padding:9px 22px;border-radius:var(--radius-sm);font-size:14px;font-weight:600;box-shadow:0 4px 16px rgba(255,70,85,.3);transition:var(--transition);white-space:nowrap}
.nav-cta .btn-main:hover{transform:translateY(-2px);box-shadow:0 6px 22px rgba(255,70,85,.42)}
.nav-toggle{display:none;background:none;border:none;color:#fff;font-size:22px;cursor:pointer;padding:8px 10px;border-radius:8px}
.nav-toggle:hover{background:rgba(255,255,255,.1)}
/* ===== Page Hero ===== */
.page-hero{position:relative;padding:110px 0 100px;background:linear-gradient(135deg,#0a111c 0%,#101a29 55%,#1a2735 100%);overflow:hidden}
.page-hero .hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.18}
.page-hero .hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(10,17,28,.9),rgba(10,17,28,.5))}
.hero-breadcrumb{position:relative;z-index:2;display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(240,242,245,.6);margin-bottom:24px}
.hero-breadcrumb a{color:rgba(240,242,245,.7)}
.hero-breadcrumb a:hover{color:var(--accent)}
.hero-breadcrumb .separator{font-size:11px;opacity:.5}
.hero-content{position:relative;z-index:2;max-width:720px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,70,85,.15);border:1px solid rgba(255,70,85,.35);color:#ff8b94;padding:6px 16px;border-radius:24px;font-size:13px;font-weight:600;margin-bottom:20px}
.hero-content h1{font-size:46px;line-height:1.2;color:#fff;font-weight:800;margin-bottom:18px;letter-spacing:1px}
.hero-content p{font-size:17px;color:rgba(240,242,245,.78);line-height:1.8;margin-bottom:32px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-actions .btn-main{display:inline-flex;align-items:center;gap:9px;background:linear-gradient(135deg,var(--accent),#ff7a59);color:#fff;padding:13px 30px;border-radius:var(--radius-sm);font-size:15px;font-weight:600;box-shadow:0 6px 20px rgba(255,70,85,.35);transition:var(--transition)}
.hero-actions .btn-main:hover{transform:translateY(-2px);box-shadow:0 10px 28px rgba(255,70,85,.45)}
.hero-actions .btn-outline{display:inline-flex;align-items:center;gap:9px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.22);color:rgba(255,255,255,.85);padding:13px 30px;border-radius:var(--radius-sm);font-size:15px;font-weight:500;transition:var(--transition)}
.hero-actions .btn-outline:hover{border-color:var(--teal);color:var(--teal);background:rgba(0,201,167,.08)}
/* ===== Section Header ===== */
.section-header{text-align:center;max-width:640px;margin:0 auto 56px}
.section-label{display:inline-block;font-size:13px;font-weight:700;letter-spacing:2px;text-transform:uppercase;color:var(--accent);background:rgba(255,70,85,.08);padding:5px 18px;border-radius:20px;margin-bottom:14px;border:1px solid rgba(255,70,85,.15)}
.section-header h2{font-size:34px;font-weight:800;color:var(--text);margin-bottom:12px;letter-spacing:.5px}
.section-header p{font-size:15px;color:var(--text-muted);line-height:1.7}
/* ===== Featured Cards ===== */
.featured-section{background:var(--bg)}
.feature-card{background:var(--card);border-radius:var(--radius-lg);border:1px solid var(--border);overflow:hidden;height:100%;display:flex;flex-direction:column;transition:var(--transition);box-shadow:var(--shadow-sm)}
.feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:rgba(255,70,85,.25)}
.card-thumb{position:relative;overflow:hidden;height:220px}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.feature-card:hover .card-thumb img{transform:scale(1.06)}
.card-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(10,17,28,.25),transparent)}
.card-tag{position:absolute;top:14px;left:14px;z-index:2;background:linear-gradient(135deg,var(--accent),#ff7a59);color:#fff;font-size:12px;font-weight:600;padding:5px 14px;border-radius:20px;box-shadow:0 4px 12px rgba(255,70,85,.3)}
.card-body{padding:24px;display:flex;flex-direction:column;flex:1}
.card-meta{font-size:13px;color:var(--text-muted);display:flex;align-items:center;gap:6px;margin-bottom:10px}
.card-body h3{font-size:18px;font-weight:700;color:var(--text);line-height:1.5;margin-bottom:10px}
.card-body p{font-size:14px;color:var(--text-muted);line-height:1.7;margin-bottom:16px;flex:1}
.card-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--accent);transition:var(--transition)}
.card-link:hover{gap:10px;color:var(--accent-hover)}
/* ===== Updates Section ===== */
.updates-section{background:var(--bg-alt)}
.news-list{display:flex;flex-direction:column;gap:16px}
.news-item{display:flex;gap:22px;background:var(--card);border-radius:var(--radius-md);padding:24px;border:1px solid var(--border);transition:var(--transition);box-shadow:var(--shadow-sm)}
.news-item:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);border-color:rgba(255,70,85,.2)}
.news-date{display:flex;flex-direction:column;align-items:center;justify-content:center;min-width:76px;background:linear-gradient(135deg,var(--primary),#1f2d3d);color:#fff;border-radius:var(--radius-sm);padding:14px 10px;text-align:center}
.news-date .date-day{font-size:28px;font-weight:800;line-height:1}
.news-date .date-month{font-size:12px;opacity:.7;margin-top:5px}
.news-content{flex:1}
.news-tag{display:inline-block;font-size:12px;font-weight:600;color:var(--teal);background:rgba(0,201,167,.1);border:1px solid rgba(0,201,167,.2);padding:3px 12px;border-radius:16px;margin-bottom:8px}
.news-content h3{font-size:17px;font-weight:700;color:var(--text);margin-bottom:6px}
.news-content p{font-size:14px;color:var(--text-muted);margin-bottom:10px;line-height:1.6}
.news-link{font-size:13px;font-weight:600;color:var(--accent);display:inline-flex;align-items:center;gap:4px}
.news-link:hover{gap:8px}
/* Sidebar */
.sidebar-panel{background:var(--card);border-radius:var(--radius-lg);padding:28px;border:1px solid var(--border);margin-bottom:24px;box-shadow:var(--shadow-sm)}
.sidebar-panel h3{font-size:18px;font-weight:700;margin-bottom:18px;display:flex;align-items:center;gap:8px;color:var(--text)}
.sidebar-panel h3 i{color:var(--accent)}
.topic-tags{display:flex;flex-wrap:wrap;gap:8px}
.topic-tag{display:inline-flex;align-items:center;gap:5px;padding:7px 14px;background:var(--bg);border:1px solid var(--border);border-radius:20px;font-size:13px;color:var(--text-muted);transition:var(--transition)}
.topic-tag:hover{border-color:var(--accent);color:var(--accent);background:rgba(255,70,85,.05)}
.topic-tag .count{font-size:11px;background:rgba(0,0,0,.06);padding:2px 7px;border-radius:10px}
.subscribe-form{display:flex;gap:10px;margin-top:8px}
.subscribe-form input{flex:1;padding:10px 16px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:14px;outline:none;transition:var(--transition)}
.subscribe-form input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(255,70,85,.12)}
.subscribe-form button{background:linear-gradient(135deg,var(--accent),#ff7a59);color:#fff;border:none;padding:10px 22px;border-radius:var(--radius-sm);font-size:14px;font-weight:600;cursor:pointer;transition:var(--transition)}
.subscribe-form button:hover{transform:translateY(-2px);box-shadow:0 4px 16px rgba(255,70,85,.3)}
/* ===== Stats ===== */
.stats-section{background:linear-gradient(135deg,var(--primary-deep),var(--primary) 60%,#1f2d3d);padding:80px 0;position:relative;overflow:hidden}
.stats-section::before{content:"";position:absolute;inset:0;background:url('/assets/images/backpic/back-2.png') center/cover;opacity:.06}
.stat-item{text-align:center;padding:32px 20px;border-radius:var(--radius-lg);background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);position:relative;transition:var(--transition)}
.stat-item:hover{background:rgba(255,255,255,.07);transform:translateY(-4px);border-color:rgba(255,70,85,.3)}
.stat-icon{font-size:32px;color:var(--teal);margin-bottom:14px}
.stat-item:nth-child(2) .stat-icon{color:var(--amber)}
.stat-item:nth-child(3) .stat-icon{color:var(--accent)}
.stat-item:nth-child(4) .stat-icon{color:#7c9cf5}
.stat-number{font-size:38px;font-weight:800;color:#fff;line-height:1.2;margin-bottom:6px}
.stat-label{font-size:14px;color:rgba(240,242,245,.65);letter-spacing:.5px}
/* ===== FAQ ===== */
.faq-section{background:var(--bg)}
.accordion{max-width:800px;margin:0 auto}
.accordion-item{border:1px solid var(--border)!important;border-radius:var(--radius-md)!important;margin-bottom:14px;overflow:hidden;box-shadow:var(--shadow-sm)}
.accordion-button{background:var(--card)!important;color:var(--text)!important;font-weight:600;font-size:15px;padding:20px 24px}
.accordion-button:not(.collapsed){background:var(--card)!important;color:var(--accent)!important;box-shadow:none!important}
.accordion-button:focus{box-shadow:0 0 0 3px rgba(255,70,85,.15)!important}
.accordion-button::after{color:var(--accent)}
.accordion-body{background:var(--card);color:var(--text-muted);font-size:14px;line-height:1.8;padding:0 24px 20px}
/* ===== CTA ===== */
.cta-section{position:relative;background:linear-gradient(135deg,var(--primary-deep),#142033);padding:90px 0;overflow:hidden;text-align:center}
.cta-section::before{content:"";position:absolute;inset:0;background:url('/assets/images/backpic/back-3.png') center/cover;opacity:.1}
.cta-section::after{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:600px;height:600px;background:radial-gradient(circle,rgba(255,70,85,.15),transparent 70%);pointer-events:none}
.cta-content{position:relative;z-index:2;max-width:640px;margin:0 auto}
.cta-content h2{font-size:34px;color:#fff;font-weight:800;margin-bottom:16px}
.cta-content p{font-size:17px;color:rgba(240,242,245,.75);margin-bottom:34px}
.cta-content .btn-main{display:inline-flex;align-items:center;gap:10px;background:linear-gradient(135deg,var(--accent),#ff7a59);color:#fff;padding:14px 36px;border-radius:var(--radius-md);font-size:16px;font-weight:700;box-shadow:0 8px 28px rgba(255,70,85,.4);transition:var(--transition);border:none}
.cta-content .btn-main:hover{transform:translateY(-3px);box-shadow:0 12px 36px rgba(255,70,85,.5)}
/* ===== Footer ===== */
.site-footer{background:var(--primary-deep);padding:70px 0 30px;border-top:1px solid rgba(255,255,255,.06)}
.footer-top{display:grid;grid-template-columns:2fr 1fr 1.2fr;gap:50px;margin-bottom:50px}
.footer-brand .footer-logo{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-logo .logo-icon{width:42px;height:42px;font-size:18px}
.footer-logo .logo-text{font-size:20px;font-weight:800;color:#fff}
.footer-brand p{color:rgba(240,242,245,.6);font-size:14px;line-height:1.8;max-width:360px}
.footer-title{font-size:16px;font-weight:700;color:#fff;margin-bottom:18px}
.footer-links ul,.footer-contact ul{list-style:none;padding:0;margin:0}
.footer-links li,.footer-contact li{margin-bottom:12px}
.footer-links a{color:rgba(240,242,245,.6);font-size:14px;display:inline-flex;align-items:center;gap:6px;transition:var(--transition)}
.footer-links a:hover{color:var(--accent);padding-left:3px}
.footer-links a i{font-size:11px;color:var(--accent)}
.footer-contact li{display:flex;align-items:center;gap:10px;color:rgba(240,242,245,.6);font-size:14px}
.footer-contact li i{color:var(--teal);width:18px;text-align:center}
.footer-bottom{border-top:1px solid rgba(255,255,255,.06);padding-top:24px;text-align:center}
.footer-bottom p{color:rgba(240,242,245,.4);font-size:13px}
/* ===== Responsive ===== */
@media(max-width:1024px){
  .footer-top{grid-template-columns:1fr 1fr;gap:40px}
  .hero-content h1{font-size:38px}
}
@media(max-width:768px){
  .section-pad{padding:60px 0}
  .section-header h2{font-size:28px}
  .nav-links{position:fixed;top:70px;left:0;right:0;background:var(--primary-deep);flex-direction:column;padding:20px;gap:8px;display:none;border-bottom:1px solid rgba(255,255,255,.08);box-shadow:0 12px 30px rgba(0,0,0,.3)}
  .nav-links.open{display:flex}
  .nav-link{width:100%;justify-content:flex-start}
  .nav-toggle{display:block}
  .nav-cta{display:none}
  .hero-content h1{font-size:32px}
  .hero-actions{flex-direction:column}
  .news-item{flex-direction:row}
  .news-date{min-width:60px}
  .news-date .date-day{font-size:22px}
  .footer-top{grid-template-columns:1fr;gap:32px}
  .footer-brand p{max-width:100%}
  .subscribe-form{flex-direction:column}
  .stat-number{font-size:30px}
  .cta-content h2{font-size:28px}
}
@media(max-width:520px){
  .container-55{padding:0 16px}
  .hero-content h1{font-size:26px}
  .hero-content p{font-size:15px}
  .logo-text{font-size:17px}
  .logo-icon{width:34px;height:34px;font-size:15px}
  .news-item{flex-direction:column}
  .news-date{flex-direction:row;gap:10px;min-width:auto;justify-content:flex-start}
  .news-date .date-month{margin-top:0}
  .card-thumb{height:180px}
}