/* roulang page: index */
:root {
  --primary: #2348d8;
  --primary-dark: #1836a8;
  --primary-light: #e9efff;
  --accent: #f0642e;
  --accent-light: #fff0e9;
  --dark: #0c1a35;
  --dark-2: #162d54;
  --bg: #f5f8ff;
  --surface: #ffffff;
  --text: #162033;
  --text-muted: #5b6b86;
  --border: #e4eaf4;
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 2px 10px rgba(12, 26, 53, 0.06);
  --shadow-md: 0 10px 32px rgba(12, 26, 53, 0.08);
  --shadow-lg: 0 24px 60px rgba(12, 26, 53, 0.14);
  --transition: all 0.3s ease;
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
button {
  border: none;
  background: none;
  cursor: pointer;
}
input:focus, button:focus, a:focus {
  outline: none;
}
.container {
  max-width: 1200px;
  padding-left: 24px;
  padding-right: 24px;
  margin: 0 auto;
}
section {
  position: relative;
}
.section {
  padding: 96px 0;
}
.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 60px;
}
.section-header .eyebrow {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 1px;
  padding: 6px 18px;
  border-radius: 30px;
  margin-bottom: 16px;
  text-transform: uppercase;
}
.section-header h2 {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--dark);
  letter-spacing: -0.02em;
  line-height: 1.25;
  margin-bottom: 16px;
}
.section-header p {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.7;
}
.text-gradient {
  background: linear-gradient(120deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 30px;
  border-radius: 30px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: var(--transition);
  border: none;
  cursor: pointer;
}
.btn-lg {
  padding: 16px 40px;
  font-size: 1.05rem;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 15px rgba(35, 72, 216, 0.3);
}
.btn-primary:hover {
  background: var(--primary-dark);
  box-shadow: 0 8px 24px rgba(35, 72, 216, 0.35);
  transform: translateY(-2px);
  color: #fff;
}
.btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.7);
}
.btn-outline:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: #fff;
  transform: translateY(-2px);
  color: #fff;
}
.btn-light {
  background: #fff;
  color: var(--primary);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}
.btn-light:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
  color: var(--primary-dark);
}
.badge {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 30px;
  font-size: 0.8rem;
  font-weight: 600;
  background: var(--primary-light);
  color: var(--primary);
}
.badge-accent {
  background: var(--accent-light);
  color: var(--accent);
}
.badge-success {
  background: #e6f7ed;
  color: #12a454;
}
.badge-dark {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.3);
}
.icon-circle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 1.3rem;
  flex-shrink: 0;
}
/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1050;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
}
.custom-navbar {
  min-height: 76px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand-logo {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--dark);
  letter-spacing: -0.02em;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 8px;
}
.brand-logo i {
  color: var(--primary);
  font-size: 1.6rem;
}
.brand-logo span {
  color: var(--primary);
}
.main-nav-desktop {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 0 auto;
}
.main-nav-desktop .nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  padding: 8px 18px;
  border-radius: 30px;
  transition: var(--transition);
}
.main-nav-desktop .nav-link:hover {
  color: var(--primary);
  background: var(--primary-light);
}
.main-nav-desktop .nav-link.active {
  color: var(--primary);
  background: var(--primary-light);
  font-weight: 600;
}
.nav-right {
  display: flex;
  align-items: center;
  gap: 14px;
}
.search-box {
  position: relative;
  width: 210px;
}
.search-box input {
  width: 100%;
  padding: 9px 16px 9px 38px;
  border-radius: 30px;
  border: 1px solid var(--border);
  background: var(--bg);
  font-size: 0.88rem;
  color: var(--text);
  transition: var(--transition);
}
.search-box input::placeholder {
  color: #9aabbf;
}
.search-box input:focus {
  outline: none;
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(35, 72, 216, 0.08);
}
.search-box i {
  position: absolute;
  left: 15px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 0.85rem;
}
.btn-sm-cta {
  padding: 10px 24px;
  border-radius: 30px;
  background: var(--primary);
  color: #fff;
  font-weight: 600;
  font-size: 0.88rem;
  border: none;
  transition: var(--transition);
  white-space: nowrap;
}
.btn-sm-cta:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(35, 72, 216, 0.25);
  color: #fff;
}
.navbar-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-size: 1.2rem;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.navbar-toggle:hover {
  background: var(--primary-light);
  color: var(--primary);
}
.mobile-collapse {
  display: none;
  width: 100%;
  background: #fff;
  border-top: 1px solid var(--border);
  padding: 16px 0;
}
.mobile-collapse.open {
  display: block;
}
.mobile-collapse .nav-link {
  display: block;
  padding: 12px 20px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
  border-radius: 12px;
  transition: var(--transition);
}
.mobile-collapse .nav-link:hover,
.mobile-collapse .nav-link.active {
  background: var(--primary-light);
  color: var(--primary);
}
.mobile-collapse .mobile-search {
  padding: 8px 20px 14px;
}
.mobile-collapse .mobile-search input {
  width: 100%;
  padding: 10px 16px;
  border-radius: 24px;
  border: 1px solid var(--border);
  font-size: 0.9rem;
}
.mobile-collapse .mobile-cta {
  padding: 8px 20px;
}
/* Hero */
.hero {
  position: relative;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  padding: 140px 0 110px;
  color: #fff;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, rgba(12, 26, 53, 0.92) 20%, rgba(12, 26, 53, 0.55) 70%);
}
.hero::after {
  content: '';
  position: absolute;
  right: -80px;
  top: -80px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 640px;
}
.hero .hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(6px);
  padding: 6px 18px;
  border-radius: 30px;
  font-size: 0.82rem;
  font-weight: 500;
  color: #fff;
  margin-bottom: 28px;
}
.hero .hero-badge i {
  color: #ffd166;
}
.hero h1 {
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
  color: #fff;
}
.hero h1 .highlight {
  color: #7ea2ff;
  position: relative;
}
.hero p.hero-desc {
  font-size: 1.1rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 36px;
  max-width: 520px;
}
.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}
.hero-stats {
  display: flex;
  gap: 42px;
  flex-wrap: wrap;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 32px;
}
.hero-stats .stat-item .stat-num {
  font-size: 1.8rem;
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
}
.hero-stats .stat-item .stat-label {
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.65);
  margin-top: 4px;
}
.hero-float-card {
  position: absolute;
  right: 6%;
  bottom: 80px;
  z-index: 2;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  max-width: 320px;
  color: #fff;
}
.hero-float-card .fc-label {
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.6);
  letter-spacing: 1px;
  margin-bottom: 8px;
}
.hero-float-card .fc-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 4px;
}
.hero-float-card .fc-desc {
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.5;
}
/* Feature Cards */
.features {
  background: var(--surface);
  padding: 96px 0;
}
.feature-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  height: 100%;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0;
  transition: var(--transition);
}
.feature-card:hover {
  background: #fff;
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
  border-color: transparent;
}
.feature-card:hover::before {
  opacity: 1;
}
.feature-card .icon-circle {
  margin-bottom: 24px;
  background: var(--primary-light);
  color: var(--primary);
  width: 60px;
  height: 60px;
  font-size: 1.5rem;
}
.feature-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 12px;
}
.feature-card p {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 0;
}
/* Category Cards */
.categories {
  background: var(--bg);
  padding: 96px 0;
}
.category-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
}
.category-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.category-card .category-img {
  position: relative;
  height: 200px;
  overflow: hidden;
}
.category-card .category-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.category-card:hover .category-img img {
  transform: scale(1.05);
}
.category-card .category-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(12, 26, 53, 0.55), transparent);
}
.category-card .category-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 2;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(4px);
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 5px 14px;
  border-radius: 20px;
}
.category-card .category-body {
  padding: 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.category-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 10px;
}
.category-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.65;
  flex: 1;
  margin-bottom: 16px;
}
.category-card .category-link {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.category-card .category-link i {
  transition: transform 0.3s ease;
}
.category-card .category-link:hover i {
  transform: translateX(4px);
}
/* News Section */
.news-section {
  background: var(--surface);
  padding: 96px 0;
}
.news-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.news-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.news-item:hover {
  background: #fff;
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.news-item .news-meta {
  display: flex;
  align-items: center;
  gap: 12px;
}
.news-item .news-cat {
  background: var(--primary-light);
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 20px;
}
.news-item .news-date {
  font-size: 0.78rem;
  color: var(--text-muted);
}
.news-item h4 {
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--dark);
  line-height: 1.4;
  margin: 0;
  transition: var(--transition);
}
.news-item:hover h4 {
  color: var(--primary);
}
.news-item p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.empty-tip {
  grid-column: 1 / -1;
  text-align: center;
  padding: 48px 0;
  color: var(--text-muted);
  font-size: 1rem;
}
/* Steps Section */
.steps {
  background: var(--dark);
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  padding: 96px 0;
  color: #fff;
}
.steps::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(12, 26, 53, 0.88);
}
.steps .section-header {
  position: relative;
  z-index: 1;
}
.steps .section-header h2 {
  color: #fff;
}
.steps .section-header p {
  color: rgba(255, 255, 255, 0.7);
}
.step-item {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 40px 24px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  height: 100%;
  backdrop-filter: blur(8px);
  transition: var(--transition);
}
.step-item:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-4px);
}
.step-num {
  width: 48px;
  height: 48px;
  margin: 0 auto 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  font-size: 1.2rem;
  font-weight: 800;
  color: #fff;
}
.step-item h4 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
}
.step-item p {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.6;
  margin: 0;
}
/* Showcase */
.showcase {
  background: var(--bg);
  padding: 96px 0;
}
.showcase-block {
  display: flex;
  align-items: center;
  gap: 60px;
  margin-bottom: 80px;
}
.showcase-block:nth-child(even) {
  flex-direction: row-reverse;
}
.showcase-block:last-child {
  margin-bottom: 0;
}
.showcase-media {
  flex: 1;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.showcase-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 320px;
}
.showcase-content {
  flex: 1;
}
.showcase-content .eyebrow {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 1px;
  padding: 5px 16px;
  border-radius: 30px;
  margin-bottom: 16px;
}
.showcase-content h3 {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 14px;
  line-height: 1.3;
}
.showcase-content p {
  font-size: 0.96rem;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 20px;
}
.showcase-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}
.showcase-tags .tag {
  background: #fff;
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 0.8rem;
  font-weight: 500;
  padding: 4px 14px;
  border-radius: 20px;
}
.quote-block {
  background: var(--primary-light);
  border-left: 4px solid var(--primary);
  padding: 20px 24px;
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 0.95rem;
  color: var(--dark);
  line-height: 1.7;
  margin-top: 20px;
}
/* FAQ */
.faq {
  background: var(--surface);
  padding: 96px 0;
}
.faq-accordion {
  max-width: 820px;
  margin: 0 auto;
}
.faq-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 16px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item.open {
  border-color: rgba(35, 72, 216, 0.3);
  box-shadow: var(--shadow-sm);
}
.faq-item .faq-question {
  padding: 22px 28px;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--dark);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  transition: var(--transition);
}
.faq-item .faq-question i {
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: transform 0.3s ease;
}
.faq-item.open .faq-question i {
  transform: rotate(45deg);
  color: var(--primary);
}
.faq-item .faq-answer {
  max-height: 0;
  overflow: hidden;
  padding: 0 28px;
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.7;
  transition: max-height 0.4s ease, padding 0.4s ease;
}
.faq-item.open .faq-answer {
  max-height: 260px;
  padding: 0 28px 22px;
}
/* CTA */
.cta-section {
  position: relative;
  background-image: url('/assets/images/backpic/back-3.png');
  background-size: cover;
  background-position: center;
  padding: 110px 0;
  text-align: center;
  color: #fff;
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(35, 72, 216, 0.85), rgba(12, 26, 53, 0.9));
}
.cta-section .container {
  position: relative;
  z-index: 1;
}
.cta-section h2 {
  font-size: 2.4rem;
  font-weight: 800;
  margin-bottom: 16px;
  color: #fff;
}
.cta-section p {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.8);
  max-width: 560px;
  margin: 0 auto 32px;
}
/* Footer */
.site-footer {
  background: #081426;
  color: #8ea0c0;
  padding: 72px 0 32px;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand {
  font-size: 1.4rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.footer-brand i {
  color: #7ea2ff;
}
.footer-brand span {
  color: #7ea2ff;
}
.footer-desc {
  font-size: 0.88rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.5);
  max-width: 320px;
}
.footer-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}
.footer-title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 28px;
  height: 2px;
  background: var(--primary);
}
.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-links li {
  margin-bottom: 10px;
}
.footer-links a {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.6);
  transition: var(--transition);
}
.footer-links a:hover {
  color: #fff;
  padding-left: 4px;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.35);
}
/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg);
}
::-webkit-scrollbar-thumb {
  background: #c0ccdd;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--primary);
}
/* Responsive */
@media (max-width: 991px) {
  .main-nav-desktop {
    display: none;
  }
  .nav-right .search-box {
    display: none;
  }
  .nav-right .btn-sm-cta {
    display: none;
  }
  .navbar-toggle {
    display: inline-flex;
  }
  .mobile-collapse.open {
    display: block;
  }
  .hero {
    padding: 100px 0 80px;
  }
  .hero h1 {
    font-size: 2.4rem;
  }
  .hero-float-card {
    display: none;
  }
  .news-list {
    grid-template-columns: 1fr;
  }
  .showcase-block {
    flex-direction: column;
    gap: 40px;
    margin-bottom: 60px;
  }
  .showcase-block:nth-child(even) {
    flex-direction: column;
  }
  .showcase-media {
    width: 100%;
  }
  .showcase-media img {
    min-height: 220px;
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .section {
    padding: 72px 0;
  }
  .section-header h2 {
    font-size: 1.9rem;
  }
  .steps {
    padding: 72px 0;
  }
  .cta-section {
    padding: 80px 0;
  }
  .cta-section h2 {
    font-size: 1.9rem;
  }
}
@media (max-width: 576px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
  .brand-logo {
    font-size: 1.15rem;
  }
  .brand-logo i {
    font-size: 1.3rem;
  }
  .custom-navbar {
    min-height: 64px;
  }
  .hero {
    padding: 80px 0 60px;
  }
  .hero h1 {
    font-size: 1.9rem;
  }
  .hero p.hero-desc {
    font-size: 0.96rem;
  }
  .hero-actions .btn {
    padding: 12px 22px;
    font-size: 0.9rem;
  }
  .hero-stats {
    gap: 24px;
  }
  .hero-stats .stat-item .stat-num {
    font-size: 1.4rem;
  }
  .feature-card {
    padding: 28px 20px;
  }
  .category-card .category-body {
    padding: 20px;
  }
  .news-item {
    padding: 20px;
  }
  .step-item {
    padding: 30px 18px;
  }
  .section {
    padding: 60px 0;
  }
  .section-header h2 {
    font-size: 1.6rem;
  }
  .section-header p {
    font-size: 0.92rem;
  }
  .cta-section h2 {
    font-size: 1.5rem;
  }
  .cta-section p {
    font-size: 0.92rem;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* roulang page: category1 */
:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #dbeafe;
  --accent: #f59e0b;
  --dark: #0f172a;
  --dark-2: #1e293b;
  --bg: #f8fafc;
  --white: #ffffff;
  --text: #1e293b;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 4px 24px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 12px 40px rgba(15, 23, 42, 0.14);
  --transition: all 0.3s ease;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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

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

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* ===== 顶部导航 ===== */
.site-header {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px);
  position: sticky;
  top: 0;
  z-index: 1050;
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 4px rgba(15, 23, 42, 0.04);
}

.custom-navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 16px;
}

.brand-logo {
  display: flex;
  align-items: center;
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text);
  white-space: nowrap;
}

.brand-logo i {
  color: var(--primary);
  font-size: 1.3rem;
  margin-right: 8px;
  background: var(--primary-light);
  border-radius: 8px;
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.brand-logo span {
  color: var(--primary);
  font-weight: 600;
}

.main-nav-desktop {
  display: flex;
  align-items: center;
  gap: 8px;
}

.main-nav-desktop .nav-link {
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  position: relative;
}

.main-nav-desktop .nav-link:hover {
  color: var(--primary);
  background: var(--primary-light);
}

.main-nav-desktop .nav-link.active {
  color: var(--primary);
  background: var(--primary-light);
  font-weight: 600;
}

.main-nav-desktop .nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 24px;
  height: 3px;
  border-radius: 3px;
  background: var(--primary);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.search-box {
  display: flex;
  align-items: center;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 8px 16px;
  width: 200px;
  transition: var(--transition);
}

.search-box:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
  background: var(--white);
}

.search-box i {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-right: 8px;
}

.search-box input {
  border: none;
  outline: none;
  background: transparent;
  width: 100%;
  font-size: 0.875rem;
  color: var(--text);
}

.btn-sm-cta {
  background: var(--primary);
  color: var(--white);
  border: none;
  border-radius: 24px;
  padding: 8px 24px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}

.btn-sm-cta:hover {
  background: var(--primary-dark);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.3);
}

.navbar-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  width: 40px;
  height: 40px;
  font-size: 1rem;
  color: var(--text);
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

.navbar-toggle:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.mobile-collapse {
  display: none;
  padding: 16px 0 24px;
  border-top: 1px solid var(--border);
}

.mobile-collapse .nav-link {
  display: block;
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
}

.mobile-collapse .nav-link:hover {
  background: var(--primary-light);
  color: var(--primary);
}

.mobile-collapse .nav-link.active {
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 600;
}

.mobile-search {
  display: flex;
  align-items: center;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 10px 16px;
  margin-bottom: 12px;
}

.mobile-search input {
  border: none;
  outline: none;
  background: transparent;
  width: 100%;
  font-size: 0.9rem;
}

.mobile-cta {
  margin-top: 12px;
}

/* ===== 页面横幅 ===== */
.page-banner {
  position: relative;
  background-size: cover;
  background-position: center;
  padding: 100px 0 88px;
  color: var(--white);
  isolation: isolate;
}

.page-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(15, 23, 42, 0.92) 30%, rgba(15, 23, 42, 0.62) 60%, rgba(37, 99, 235, 0.4) 100%);
  z-index: -1;
}

.page-banner .breadcrumb-nav {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  background: rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(8px);
  padding: 6px 16px;
  border-radius: 24px;
  margin-bottom: 24px;
}

.page-banner .breadcrumb-nav a {
  color: rgba(255, 255, 255, 0.8);
}

.page-banner .breadcrumb-nav a:hover {
  color: var(--white);
}

.page-banner .breadcrumb-nav span {
  color: rgba(255, 255, 255, 0.5);
}

.page-banner h1 {
  font-size: 2.8rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin-bottom: 20px;
  max-width: 640px;
}

.page-banner h1 .highlight {
  color: #93c5fd;
  position: relative;
}

.page-banner .lead {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.85);
  max-width: 560px;
  margin-bottom: 32px;
  line-height: 1.8;
}

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

.btn-light-custom {
  background: var(--white);
  color: var(--primary);
  padding: 12px 32px;
  border-radius: 48px;
  font-weight: 600;
  font-size: 1rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.btn-light-custom:hover {
  background: var(--primary);
  color: var(--white);
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(37, 99, 235, 0.4);
}

.btn-outline-light-custom {
  background: transparent;
  color: var(--white);
  border: 1.5px solid rgba(255, 255, 255, 0.7);
  padding: 12px 28px;
  border-radius: 48px;
  font-weight: 500;
  font-size: 1rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
}

.btn-outline-light-custom:hover {
  background: rgba(255, 255, 255, 0.12);
  color: var(--white);
  border-color: var(--white);
  transform: translateY(-3px);
}

/* ===== 入口方式 ===== */
.entry-ways {
  padding: 88px 0;
  background: var(--white);
}

.section-heading {
  text-align: center;
  margin-bottom: 56px;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.section-heading .eyebrow {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 6px 18px;
  border-radius: 24px;
  margin-bottom: 16px;
}

.section-heading h2 {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  color: var(--dark);
}

.section-heading p {
  color: var(--text-muted);
  font-size: 1.05rem;
}

.entry-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.entry-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 28px;
  text-align: center;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.entry-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--primary);
  opacity: 0;
  transition: var(--transition);
}

.entry-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(37, 99, 235, 0.3);
}

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

.entry-icon {
  width: 68px;
  height: 68px;
  margin: 0 auto 20px;
  border-radius: 18px;
  background: linear-gradient(135deg, var(--primary) 0%, #60a5fa 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  color: var(--white);
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.32);
}

.entry-card:nth-child(2) .entry-icon {
  background: linear-gradient(135deg, var(--accent) 0%, #fbbf24 100%);
  box-shadow: 0 8px 24px rgba(245, 158, 11, 0.3);
}

.entry-card:nth-child(3) .entry-icon {
  background: linear-gradient(135deg, #10b981 0%, #34d399 100%);
  box-shadow: 0 8px 24px rgba(16, 185, 129, 0.3);
}

.entry-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--dark);
}

.entry-card p {
  font-size: 0.925rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  line-height: 1.7;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-size: 0.9rem;
  font-weight: 600;
}

.card-link:hover {
  gap: 10px;
}

/* ===== 图文对比 ===== */
.feature-split {
  padding: 88px 0;
  background: var(--bg);
}

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

.feature-image {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  position: relative;
}

.feature-image img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.feature-image:hover img {
  transform: scale(1.03);
}

.feature-image .img-badge {
  position: absolute;
  bottom: 20px;
  left: 20px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  padding: 10px 20px;
  border-radius: 12px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--dark);
  box-shadow: var(--shadow);
}

.feature-content .eyebrow {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 6px 18px;
  border-radius: 24px;
  margin-bottom: 16px;
}

.feature-content h2 {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--dark);
  margin-bottom: 18px;
  line-height: 1.3;
}

.feature-content p {
  color: var(--text-muted);
  font-size: 1rem;
  margin-bottom: 24px;
  line-height: 1.8;
}

.feature-list {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.95rem;
  color: var(--text);
  font-weight: 500;
  padding: 12px 14px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 10px;
  transition: var(--transition);
}

.feature-list li:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow);
}

.feature-list i {
  color: var(--primary);
  margin-top: 2px;
}

/* ===== 步骤流程 ===== */
.steps-section {
  padding: 88px 0;
  background: var(--white);
}

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

.step-item {
  position: relative;
  padding: 36px 24px 28px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-align: center;
  transition: var(--transition);
}

.step-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
}

.step-num {
  width: 56px;
  height: 56px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--white);
  font-size: 1.3rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font);
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.3);
}

.step-item:nth-child(2) .step-num {
  background: var(--accent);
  box-shadow: 0 8px 20px rgba(245, 158, 11, 0.3);
}

.step-item:nth-child(3) .step-num {
  background: #10b981;
  box-shadow: 0 8px 20px rgba(16, 185, 129, 0.3);
}

.step-item:nth-child(4) .step-num {
  background: #8b5cf6;
  box-shadow: 0 8px 20px rgba(139, 92, 246, 0.3);
}

.step-item h4 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 10px;
}

.step-item p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ===== 注意事项 ===== */
.tips-section {
  padding: 88px 0;
  background: var(--dark);
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.tips-section::before {
  content: '';
  position: absolute;
  top: -120px;
  right: -120px;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: rgba(37, 99, 235, 0.2);
  filter: blur(60px);
}

.tips-section .section-heading h2 {
  color: var(--white);
}

.tips-section .section-heading p {
  color: rgba(255, 255, 255, 0.65);
}

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

.tip-item {
  display: flex;
  gap: 18px;
  padding: 28px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  transition: var(--transition);
}

.tip-item:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-4px);
}

.tip-item i {
  font-size: 1.4rem;
  color: #93c5fd;
  flex-shrink: 0;
  margin-top: 4px;
}

.tip-item h5 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.tip-item p {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.7;
}

/* ===== FAQ ===== */
.faq-section {
  padding: 88px 0;
  background: var(--bg);
}

.faq-container {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: rgba(37, 99, 235, 0.3);
  box-shadow: var(--shadow);
}

.faq-title {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  background: none;
  border: none;
  text-align: left;
  cursor: pointer;
  gap: 16px;
}

.faq-title:hover {
  color: var(--primary);
}

.faq-title i {
  transition: transform 0.3s ease;
  color: var(--primary);
  flex-shrink: 0;
}

.faq-title[aria-expanded="true"] i {
  transform: rotate(45deg);
}

.faq-body {
  padding: 0 24px 20px;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.8;
}

/* ===== CTA ===== */
.cta-section {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--primary) 0%, #1e40af 100%);
  position: relative;
  overflow: hidden;
}

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

.cta-inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
  color: var(--white);
}

.cta-inner h2 {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.cta-inner p {
  font-size: 1.1rem;
  opacity: 0.9;
  margin-bottom: 32px;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--white);
  color: var(--primary);
  font-size: 1.1rem;
  font-weight: 700;
  padding: 14px 40px;
  border-radius: 48px;
  transition: var(--transition);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}

.cta-btn:hover {
  transform: translateY(-3px);
  background: var(--dark);
  color: var(--white);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 64px 0 28px;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  margin-bottom: 24px;
}

.footer-brand {
  display: flex;
  align-items: center;
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 16px;
}

.footer-brand i {
  color: var(--primary);
  margin-right: 10px;
  font-size: 1.2rem;
  background: rgba(37, 99, 235, 0.2);
  border-radius: 8px;
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.footer-brand span {
  color: #60a5fa;
}

.footer-desc {
  font-size: 0.9rem;
  line-height: 1.8;
  max-width: 380px;
  opacity: 0.8;
}

.footer-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 20px;
  letter-spacing: 0.02em;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
  transition: var(--transition);
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.85rem;
  opacity: 0.6;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .search-box {
    display: none;
  }

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

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

@media (max-width: 768px) {
  .main-nav-desktop {
    display: none;
  }

  .btn-sm-cta {
    display: none;
  }

  .navbar-toggle {
    display: flex;
  }

  .mobile-collapse.open {
    display: block;
  }

  .page-banner h1 {
    font-size: 2rem;
  }

  .page-banner .lead {
    font-size: 1rem;
  }

  .feature-grid {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 0 16px;
  }

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

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

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

  .footer-top > div:first-child {
    padding-bottom: 16px;
  }

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

  .cta-inner h2 {
    font-size: 1.8rem;
  }
}

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

  .brand-logo {
    font-size: 1.15rem;
  }

  .brand-logo i {
    width: 30px;
    height: 30px;
    font-size: 1rem;
  }

  .page-banner {
    padding: 70px 0 60px;
  }

  .page-banner h1 {
    font-size: 1.65rem;
  }

  .section-heading h2 {
    font-size: 1.6rem;
  }

  .entry-cards {
    grid-template-columns: 1fr;
  }

  .steps-wrapper {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* roulang page: article */
:root {
  --primary: #1e4fd8;
  --primary-dark: #173a9c;
  --primary-light: #e8edfd;
  --secondary: #0e9bb5;
  --accent: #f7b32b;
  --bg: #f4f7fc;
  --bg-deep: #0c1526;
  --text: #17233b;
  --text-weak: #5e6e85;
  --border: #e5eaf2;
  --radius: 18px;
  --radius-sm: 10px;
  --radius-lg: 28px;
  --shadow: 0 12px 34px rgba(23, 45, 80, 0.08);
  --shadow-lg: 0 28px 60px rgba(23, 45, 80, 0.14);
  --ff-sans: "Inter", -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--ff-sans);
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a {
  text-decoration: none;
  color: var(--primary);
  transition: color .2s ease;
}

a:hover {
  color: var(--primary-dark);
}

img {
  max-width: 100%;
}

.container {
  max-width: 1200px;
}

a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 3px solid rgba(30, 79, 216, 0.35);
  outline-offset: 2px;
  border-radius: 6px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1050;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(228, 233, 242, 0.7);
}

.custom-navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.brand-logo i {
  color: var(--accent);
}

.brand-logo span {
  color: var(--text);
  font-weight: 600;
}

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

.nav-link {
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 0.925rem;
  font-weight: 600;
  color: var(--text);
  transition: all .2s ease;
}

.nav-link:hover {
  background: var(--primary-light);
  color: var(--primary);
}

.nav-link.active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 6px 16px rgba(30, 79, 216, 0.28);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.search-box {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #f2f5fa;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 7px 14px;
  min-width: 180px;
  transition: all .2s;
}

.search-box:focus-within {
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(30, 79, 216, 0.1);
}

.search-box i {
  color: var(--text-weak);
  font-size: 0.85rem;
}

.search-box input {
  border: none;
  outline: none;
  background: transparent;
  font-size: 0.875rem;
  width: 100%;
  color: var(--text);
}

.btn-sm-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 18px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  font-size: 0.875rem;
  font-weight: 600;
  box-shadow: 0 8px 20px rgba(30, 79, 216, 0.28);
  transition: all .2s ease;
  border: none;
}

.btn-sm-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 26px rgba(30, 79, 216, 0.34);
  color: #fff;
}

.navbar-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.2rem;
  color: var(--text);
  padding: 6px 10px;
  border-radius: 10px;
  cursor: pointer;
}

.mobile-collapse {
  display: none;
  padding: 12px 0 20px;
}

.mobile-collapse.show {
  display: block;
}

.mobile-search {
  margin-bottom: 12px;
}

.mobile-search input {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 10px 16px;
  background: #f2f5fa;
  font-size: 0.9rem;
  outline: none;
}

.mobile-collapse .nav-link {
  display: block;
  padding: 10px 14px;
  margin-bottom: 4px;
}

.mobile-cta {
  margin-top: 16px;
}

.btn {
  border-radius: 999px;
  font-weight: 600;
  padding: 10px 22px;
  transition: all .2s ease;
}

.btn-primary {
  background: var(--primary);
  border-color: var(--primary);
}

.btn-primary:hover,
.btn-primary:focus {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  box-shadow: 0 8px 20px rgba(30, 79, 216, 0.26);
  transform: translateY(-2px);
  color: #fff;
}

.btn-outline {
  background: transparent;
  border: 1.5px solid var(--primary);
  color: var(--primary);
}

.btn-outline:hover {
  background: var(--primary-light);
  color: var(--primary-dark);
  border-color: var(--primary-dark);
}

.w-100 {
  width: 100%;
}

.article-hero {
  position: relative;
  padding: 110px 0 80px;
  background: linear-gradient(rgba(8, 18, 38, 0.78), rgba(8, 18, 38, 0.72)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color: #fff;
}

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

.breadcrumb-wrap {
  margin-bottom: 28px;
}

.breadcrumb {
  --bs-breadcrumb-divider-color: rgba(255, 255, 255, 0.4);
  margin: 0;
}

.breadcrumb-item a {
  color: rgba(255, 255, 255, 0.75);
}

.breadcrumb-item.active {
  color: var(--accent);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin-bottom: 22px;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.75);
}

.badge-tag {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #fff;
  font-weight: 600;
  font-size: 0.85rem;
}

.badge-tag:hover {
  background: var(--primary);
  color: #fff;
}

.article-hero h1 {
  font-size: clamp(1.8rem, 3.6vw, 2.9rem);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 18px;
}

.article-summary {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.8);
  max-width: 760px;
  line-height: 1.75;
}

.article-layout {
  padding: 80px 0 40px;
}

.article-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 48px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.article-content {
  font-size: 1.02rem;
  color: #2b3a50;
  line-height: 1.9;
}

.article-content h2,
.article-content h3,
.article-content h4 {
  font-weight: 800;
  color: var(--text);
  margin-top: 2.4em;
  margin-bottom: 0.8em;
  line-height: 1.35;
}

.article-content h2::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 1.4em;
  background: var(--primary);
  border-radius: 4px;
  margin-right: 10px;
  vertical-align: middle;
}

.article-content p {
  margin-bottom: 1.25em;
}

.article-content blockquote {
  border-left: 4px solid var(--primary);
  background: var(--primary-light);
  padding: 18px 24px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 1.8em 0;
  color: var(--text);
  font-weight: 500;
}

.article-content img {
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin: 1.5em 0;
}

.article-content ul,
.article-content ol {
  margin-bottom: 1.25em;
  padding-left: 1.5em;
}

.article-content li {
  margin-bottom: 0.4em;
}

.article-content a {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.article-content code {
  background: #f1f4f9;
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 0.9em;
}

.article-empty {
  text-align: center;
  padding: 60px 20px;
}

.article-empty h2 {
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 14px;
}

.article-empty p {
  color: var(--text-weak);
  margin-bottom: 24px;
}

.side-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 24px;
  box-shadow: var(--shadow);
}

.side-card h3 {
  font-size: 1.05rem;
  font-weight: 800;
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--bg);
}

.side-card p {
  color: var(--text-weak);
  font-size: 0.9rem;
  margin-bottom: 12px;
}

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

.side-links li {
  padding: 8px 0;
  border-bottom: 1px solid #f0f2f6;
}

.side-links li a {
  color: var(--text);
  font-weight: 600;
  font-size: 0.9rem;
  display: block;
}

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

.side-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 12px;
}

.side-stats .stat-item {
  background: var(--bg);
  border-radius: var(--radius-sm);
  padding: 12px;
  text-align: center;
}

.side-stats .stat-item strong {
  display: block;
  font-size: 1.1rem;
  color: var(--primary);
}

.side-stats .stat-item span {
  font-size: 0.78rem;
  color: var(--text-weak);
}

.topics-section {
  padding: 70px 0;
}

.section-head {
  text-align: center;
  margin-bottom: 44px;
}

.eyebrow {
  display: inline-block;
  padding: 4px 16px;
  border-radius: 999px;
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  margin-bottom: 14px;
}

.section-head h2 {
  font-size: clamp(1.5rem, 2.6vw, 2.1rem);
  font-weight: 800;
  letter-spacing: -0.02em;
}

.section-head p {
  color: var(--text-weak);
  max-width: 640px;
  margin: 10px auto 0;
}

.topic-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  height: 100%;
  transition: all 0.25s ease;
}

.topic-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.topic-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.topic-card-body {
  padding: 22px;
}

.topic-card-body h3 {
  font-size: 1.05rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.topic-card-body p {
  color: var(--text-weak);
  font-size: 0.9rem;
  margin-bottom: 14px;
}

.topic-card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  color: var(--text-weak);
}

.cats-section {
  padding: 70px 0;
  background: #fff;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.cat-card {
  background: linear-gradient(180deg, #f7fafd, #eef3fa);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 30px;
  height: 100%;
  transition: all 0.25s ease;
  position: relative;
  overflow: hidden;
}

.cat-card::after {
  content: '';
  position: absolute;
  right: -40px;
  top: -40px;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: rgba(30, 79, 216, 0.05);
  transition: transform 0.3s;
}

.cat-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(30, 79, 216, 0.25);
}

.cat-card:hover::after {
  transform: scale(1.15);
}

.cat-icon {
  width: 54px;
  height: 54px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  background: var(--primary);
  color: #fff;
  font-size: 1.35rem;
  margin-bottom: 18px;
  box-shadow: 0 8px 18px rgba(30, 79, 216, 0.25);
}

.cat-card h3 {
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.cat-card p {
  color: var(--text-weak);
  font-size: 0.92rem;
  margin-bottom: 16px;
}

.cat-link {
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--primary);
}

.faq-section {
  padding: 80px 0;
}

.faq-grid {
  max-width: 840px;
  margin: 0 auto;
}

.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 28px;
  margin-bottom: 14px;
  box-shadow: var(--shadow);
}

.faq-item h3 {
  font-size: 1.02rem;
  font-weight: 700;
  margin-bottom: 8px;
  position: relative;
  padding-left: 26px;
}

.faq-item h3::before {
  content: 'Q';
  position: absolute;
  left: 0;
  top: 1px;
  color: var(--primary);
  font-weight: 800;
}

.faq-item p {
  color: var(--text-weak);
  font-size: 0.92rem;
  margin: 0;
  padding-left: 26px;
}

.faq-item p::before {
  content: 'A';
  font-weight: 800;
  color: var(--secondary);
  margin-right: 6px;
}

.cta-section {
  padding: 80px 0;
  position: relative;
  background: linear-gradient(135deg, #0c1526 0%, #14264b 60%, #1d3e7c 100%);
  color: #fff;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -40px;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(247, 179, 43, 0.18) 0%, transparent 70%);
  border-radius: 50%;
}

.cta-section::after {
  content: '';
  position: absolute;
  bottom: -80px;
  left: -60px;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(14, 155, 181, 0.22) 0%, transparent 70%);
  border-radius: 50%;
}

.cta-box {
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.cta-box h2 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 800;
  margin-bottom: 14px;
}

.cta-box p {
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 26px;
}

.btn-custom {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 999px;
  background: var(--accent);
  color: #0c1526 !important;
  font-weight: 800;
  font-size: 1rem;
  box-shadow: 0 8px 24px rgba(247, 179, 43, 0.32);
  transition: all 0.2s ease;
}

.btn-custom:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 34px rgba(247, 179, 43, 0.4);
  color: #0c1526 !important;
}

.site-footer {
  background: #0c1526;
  color: rgba(255, 255, 255, 0.7);
  padding: 64px 0 30px;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.25rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 14px;
}

.footer-brand i {
  color: var(--accent);
}

.footer-brand span {
  color: rgba(255, 255, 255, 0.9);
}

.footer-desc {
  font-size: 0.9rem;
  line-height: 1.8;
  max-width: 360px;
  margin: 0;
}

.footer-title {
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 18px;
}

.footer-links {
  list-style: none;
  padding-left: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
  transition: all 0.2s;
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 24px;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.45);
}

.sticky-sidebar {
  position: sticky;
  top: 100px;
}

@media (max-width: 1024px) {
  .container {
    padding: 0 20px;
  }

  .main-nav-desktop {
    display: none;
  }

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

  .search-box {
    display: none;
  }

  .btn-sm-cta {
    display: none;
  }

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

@media (max-width: 768px) {
  body {
    font-size: 0.95rem;
  }

  .custom-navbar {
    height: 64px;
  }

  .article-hero {
    padding: 70px 0 50px;
  }

  .article-hero h1 {
    font-size: 1.6rem;
  }

  .article-card {
    padding: 26px 20px;
  }

  .article-layout {
    padding: 40px 0 24px;
  }

  .topics-section,
  .cats-section,
  .faq-section,
  .cta-section {
    padding: 48px 0;
  }

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

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

@media (max-width: 520px) {
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

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

  .topic-card img {
    height: 150px;
  }
}

/* roulang page: category2 */
:root {
            --primary: #0f2a43;
            --primary-l2: #1e4d77;
            --primary-l3: #2f6a9f;
            --accent: #d4a24c;
            --accent-hover: #b8893a;
            --bg: #f4f7fb;
            --surface: #ffffff;
            --text: #1b2b3a;
            --text-muted: #63778a;
            --border: #dfe6ef;
            --radius: 14px;
            --radius-lg: 22px;
            --shadow-sm: 0 2px 14px rgba(15, 42, 67, .06);
            --shadow-md: 0 8px 30px rgba(15, 42, 67, .10);
            --shadow-lg: 0 18px 50px rgba(15, 42, 67, .16);
            --transition: all .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;
        }
        button,
        input {
            font-family: inherit;
            outline: none;
        }
        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
            margin: 0 auto;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--surface);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
        }
        .custom-navbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            gap: 16px;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 800;
            font-size: 22px;
            color: var(--primary);
            white-space: nowrap;
        }
        .brand-logo i {
            color: var(--accent);
            font-size: 20px;
        }
        .brand-logo span {
            color: var(--primary-l2);
            font-weight: 600;
        }
        .main-nav-desktop {
            display: flex;
            gap: 8px;
            flex: 1;
            justify-content: center;
        }
        .nav-link {
            padding: 8px 16px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-muted);
            position: relative;
        }
        .nav-link:hover {
            color: var(--primary);
            background: rgba(15, 42, 67, .05);
        }
        .nav-link.active {
            color: var(--primary);
            font-weight: 700;
        }
        .nav-link.active::after {
            content: "";
            position: absolute;
            bottom: 2px;
            left: 16px;
            right: 16px;
            height: 3px;
            border-radius: 3px;
            background: var(--accent);
        }
        .nav-right {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .search-box {
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 30px;
            padding: 6px 14px;
            width: 200px;
            transition: var(--transition);
        }
        .search-box:focus-within {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(212, 162, 76, .18);
        }
        .search-box i {
            color: var(--text-muted);
            font-size: 14px;
        }
        .search-box input {
            border: none;
            background: transparent;
            font-size: 14px;
            width: 100%;
            color: var(--text);
        }
        .search-box input::placeholder {
            color: var(--text-muted);
        }
        .btn-sm-cta {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 8px 20px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 600;
            transition: var(--transition);
            white-space: nowrap;
        }
        .btn-sm-cta:hover {
            background: var(--primary-l2);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(15, 42, 67, .25);
            color: #fff;
        }
        .navbar-toggle {
            display: none;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 10px;
            padding: 8px 12px;
            font-size: 18px;
            color: var(--primary);
            cursor: pointer;
            transition: var(--transition);
        }
        .navbar-toggle:hover {
            background: var(--border);
        }
        .mobile-collapse {
            display: none;
            padding: 0 0 16px;
            flex-direction: column;
            gap: 6px;
        }
        .mobile-collapse.show {
            display: flex;
        }
        .mobile-search {
            position: relative;
            margin-bottom: 8px;
        }
        .mobile-search input {
            width: 100%;
            padding: 10px 14px 10px 36px;
            border: 1px solid var(--border);
            border-radius: 10px;
            font-size: 14px;
            background: var(--bg);
        }
        .mobile-search::before {
            content: "\f002";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            position: absolute;
            left: 14px;
            top: 12px;
            color: var(--text-muted);
            font-size: 14px;
        }
        .mobile-cta {
            margin-top: 8px;
        }

        /* ===== Hero ===== */
        .page-hero {
            position: relative;
            background: linear-gradient(135deg, rgba(15, 42, 67, .92), rgba(30, 77, 119, .82)), var(--primary) url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            padding: 72px 0 96px;
            color: #fff;
            text-align: center;
            overflow: hidden;
        }
        .page-hero::after {
            content: "";
            position: absolute;
            bottom: -40px;
            left: 50%;
            transform: translateX(-50%);
            width: 120%;
            height: 80px;
            background: var(--bg);
            border-radius: 50% 50% 0 0;
        }
        .hero-breadcrumb {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, .8);
            margin-bottom: 20px;
            position: relative;
            z-index: 2;
        }
        .hero-breadcrumb a:hover {
            color: var(--accent);
        }
        .hero-breadcrumb i {
            font-size: 12px;
            color: rgba(255, 255, 255, .5);
        }
        .page-hero h1 {
            font-size: 40px;
            font-weight: 800;
            margin-bottom: 16px;
            position: relative;
            z-index: 2;
            letter-spacing: 1px;
        }
        .page-hero h1 span {
            color: var(--accent);
        }
        .page-hero p {
            font-size: 17px;
            max-width: 640px;
            margin: 0 auto;
            color: rgba(255, 255, 255, .85);
            position: relative;
            z-index: 2;
            line-height: 1.8;
        }
        .hero-tags {
            display: flex;
            justify-content: center;
            gap: 10px;
            margin-top: 24px;
            position: relative;
            z-index: 2;
            flex-wrap: wrap;
        }
        .hero-tag {
            background: rgba(255, 255, 255, .14);
            border: 1px solid rgba(255, 255, 255, .25);
            backdrop-filter: blur(4px);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 13px;
            color: rgba(255, 255, 255, .92);
        }

        /* ===== Section ===== */
        .section {
            padding: 64px 0;
        }
        .section-alt {
            background: var(--surface);
        }
        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 44px;
        }
        .section-head .section-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(212, 162, 76, .12);
            color: #8a6d2f;
            padding: 5px 14px;
            border-radius: 30px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 12px;
        }
        .section-head h2 {
            font-size: 30px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .section-head p {
            color: var(--text-muted);
            font-size: 15px;
        }

        /* ===== Feature cards ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .feature-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            text-align: center;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), var(--primary-l2));
            opacity: 0;
            transition: var(--transition);
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(212, 162, 76, .35);
        }
        .feature-card:hover::before {
            opacity: 1;
        }
        .feature-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 18px;
            border-radius: 18px;
            background: rgba(30, 77, 119, .1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            color: var(--primary-l2);
            transition: var(--transition);
        }
        .feature-card:hover .feature-icon {
            background: var(--primary);
            color: #fff;
            transform: rotate(-6deg) scale(1.05);
        }
        .feature-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--primary);
        }
        .feature-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ===== Play cards ===== */
        .play-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .play-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .play-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
        }
        .play-card-img {
            height: 160px;
            overflow: hidden;
            position: relative;
        }
        .play-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }
        .play-card:hover .play-card-img img {
            transform: scale(1.06);
        }
        .play-card-img .badge-num {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--primary);
            color: #fff;
            font-size: 13px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 20px;
            box-shadow: 0 4px 14px rgba(0, 0, 0, .2);
        }
        .play-card-body {
            padding: 20px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .play-card-body h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .play-card-body p {
            font-size: 14px;
            color: var(--text-muted);
            flex: 1;
            line-height: 1.7;
        }
        .play-card-meta {
            margin-top: 14px;
            display: flex;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .play-card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }
        .play-card-meta i {
            color: var(--accent);
        }

        /* ===== Guide section ===== */
        .guide-section {
            background: var(--surface);
        }
        .guide-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .guide-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .guide-img img {
            width: 100%;
            height: 360px;
            object-fit: cover;
        }
        .guide-content h3 {
            font-size: 24px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 14px;
        }
        .guide-content p {
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .guide-steps {
            margin-top: 20px;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .guide-step {
            display: flex;
            gap: 14px;
            padding: 14px 18px;
            background: var(--bg);
            border-radius: var(--radius);
            border-left: 3px solid var(--accent);
        }
        .guide-step .num {
            font-size: 20px;
            font-weight: 800;
            color: var(--accent);
            min-width: 30px;
        }
        .guide-step h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 4px;
        }
        .guide-step p {
            font-size: 13px;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.6;
        }

        /* ===== Stats ===== */
        .stats-section {
            background: linear-gradient(135deg, var(--primary), var(--primary-l2));
            color: #fff;
            padding: 56px 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }
        .stat-item {
            padding: 20px 10px;
        }
        .stat-item .num {
            font-size: 40px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .stat-item .label {
            font-size: 14px;
            color: rgba(255, 255, 255, .8);
            margin-top: 8px;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(212, 162, 76, .4);
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
        }
        .faq-question i {
            color: var(--accent);
            font-size: 18px;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 22px;
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            padding: 0 22px 18px;
            max-height: 300px;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 60px 0;
            background: var(--surface);
        }
        .cta-box {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-l2) 100%);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-box::before {
            content: "";
            position: absolute;
            top: -50px;
            right: -50px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(212, 162, 76, .2);
        }
        .cta-box h2 {
            font-size: 28px;
            font-weight: 800;
            margin-bottom: 10px;
        }
        .cta-box p {
            font-size: 15px;
            color: rgba(255, 255, 255, .85);
            margin-bottom: 22px;
        }
        .btn-cta-light {
            background: #fff;
            color: var(--primary);
            border: none;
            padding: 12px 32px;
            border-radius: 30px;
            font-size: 15px;
            font-weight: 700;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-cta-light:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, .2);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #0b1d2f;
            color: #9ab0c3;
            padding: 50px 0 20px;
            font-size: 14px;
        }
        .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 30px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-brand i {
            color: var(--accent);
        }
        .footer-brand span {
            color: var(--accent);
            font-weight: 600;
        }
        .footer-desc {
            color: #8297a8;
            line-height: 1.8;
            max-width: 360px;
        }
        .footer-title {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-links a {
            color: #8297a8;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            padding-top: 22px;
            color: #657b8d;
            font-size: 13px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .main-nav-desktop {
                display: none;
            }
            .navbar-toggle {
                display: block;
            }
            .search-box {
                display: none;
            }
            .feature-grid,
            .play-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .guide-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .guide-img img {
                height: 280px;
            }
        }
        @media (max-width: 768px) {
            .page-hero {
                padding: 50px 0 70px;
            }
            .page-hero h1 {
                font-size: 30px;
            }
            .page-hero p {
                font-size: 15px;
            }
            .section {
                padding: 44px 0;
            }
            .section-head h2 {
                font-size: 24px;
            }
            .feature-grid,
            .play-grid {
                grid-template-columns: 1fr;
            }
            .footer-top {
                grid-template-columns: 1fr 1fr;
            }
            .footer-top>div:first-child {
                grid-column: 1 / -1;
            }
            .cta-box {
                padding: 32px 22px;
            }
        }
        @media (max-width: 520px) {
            .custom-navbar {
                flex-wrap: wrap;
            }
            .brand-logo {
                font-size: 18px;
            }
            .btn-sm-cta {
                padding: 7px 14px;
                font-size: 13px;
            }
            .page-hero h1 {
                font-size: 24px;
            }
            .page-hero p {
                font-size: 14px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-item .num {
                font-size: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }
            .guide-step {
                padding: 12px 14px;
            }
            .guide-content h3 {
                font-size: 20px;
            }
        }

/* roulang page: category3 */
:root{
  --c-primary:#0d1b2a;
  --c-primary-2:#1b2f47;
  --c-accent:#d4a853;
  --c-accent-2:#c99a3f;
  --c-bg:#f2f5f9;
  --c-surface:#ffffff;
  --c-surface-2:#eef1f6;
  --c-text:#152130;
  --c-text-weak:#64748b;
  --c-border:#e2e8f0;
  --c-dark:#0a1420;
  --radius-sm:10px;
  --radius-md:18px;
  --radius-lg:28px;
  --shadow-sm:0 3px 12px rgba(15,30,50,.06);
  --shadow-md:0 10px 35px rgba(15,30,50,.09);
  --shadow-lg:0 24px 70px rgba(15,30,50,.14);
  --sp-1:8px;--sp-2:16px;--sp-3:24px;--sp-4:40px;--sp-5:64px;--sp-6:88px;
  --font-main:"Segoe UI","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-main);
  background:var(--c-bg);
  color:var(--c-text);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
a{text-decoration:none;color:inherit;transition:color .25s}
img{max-width:100%;display:block}
button,input{font-family:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
h1,h2,h3,h4,h5{margin-bottom:.5em;line-height:1.25;color:var(--c-text);font-weight:700}
p{margin-bottom:1em}
.text-weak{color:var(--c-text-weak)}
.section-pad{padding:var(--sp-6) 0}
.section-head{max-width:760px;margin-bottom:48px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--c-accent-2);text-transform:uppercase;
  background:rgba(212,168,83,.1);
  padding:6px 16px;border-radius:30px;margin-bottom:16px;
}
.section-head h2{font-size:2.15rem;margin-bottom:14px}
.section-head p{font-size:1.05rem;color:var(--c-text-weak)}
/* ---------- Header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1040;
  background:rgba(255,255,255,.82);
  backdrop-filter:saturate(180%) blur(16px);
  -webkit-backdrop-filter:saturate(180%) blur(16px);
  border-bottom:1px solid rgba(226,232,240,.8);
  transition:box-shadow .3s;
}
.site-header.scrolled{box-shadow:0 6px 30px rgba(15,30,50,.07)}
.custom-navbar{
  display:flex;align-items:center;justify-content:space-between;
  height:72px;
}
.brand-logo{
  display:inline-flex;align-items:center;gap:9px;
  font-size:20px;font-weight:800;letter-spacing:.02em;color:var(--c-primary);
  white-space:nowrap;
}
.brand-logo i{color:var(--c-accent);font-size:22px;margin-top:-2px}
.brand-logo span{color:var(--c-accent);font-weight:700}
.main-nav-desktop{
  display:flex;align-items:center;gap:4px;
  background:#fff;
  border:1px solid var(--c-border);
  border-radius:40px;
  padding:4px;
  box-shadow:inset 0 1px 4px rgba(0,0,0,.03);
}
.main-nav-desktop .nav-link{
  padding:8px 20px;
  border-radius:30px;
  font-size:14px;font-weight:600;color:var(--c-text-weak);
  transition:all .25s;
}
.main-nav-desktop .nav-link:hover{color:var(--c-primary);background:var(--c-bg)}
.main-nav-desktop .nav-link.active{
  background:var(--c-primary);
  color:#fff;
  box-shadow:0 4px 14px rgba(13,27,42,.25);
}
.nav-right{display:flex;align-items:center;gap:14px}
.search-box{
  display:flex;align-items:center;gap:8px;
  background:var(--c-bg);
  border:1px solid var(--c-border);
  border-radius:30px;
  padding:8px 16px;
  width:196px;
  transition:border-color .25s, box-shadow .25s;
}
.search-box i{color:var(--c-text-weak);font-size:14px}
.search-box input{border:none;outline:none;background:transparent;font-size:14px;width:100%}
.search-box:focus-within{border-color:var(--c-accent);box-shadow:0 0 0 3px rgba(212,168,83,.18)}
.btn-sm-cta{
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--c-accent),var(--c-accent-2));
  color:#fff;font-weight:700;font-size:14px;
  padding:10px 22px;border-radius:30px;
  border:none;box-shadow:0 6px 20px rgba(212,168,83,.38);
  transition:transform .25s, box-shadow .25s;
}
.btn-sm-cta:hover{transform:translateY(-2px);box-shadow:0 10px 28px rgba(212,168,83,.45);color:#fff}
.navbar-toggle{
  display:none;background:none;border:none;font-size:22px;color:var(--c-primary);
  width:42px;height:42px;border-radius:12px;
}
.navbar-toggle:hover{background:var(--c-bg)}
.mobile-collapse{
  display:none;flex-direction:column;gap:4px;
  padding:16px 4px 20px;border-top:1px solid var(--c-border);
}
.mobile-collapse.open{display:flex}
.mobile-collapse .nav-link{
  padding:12px 16px;border-radius:12px;font-size:15px;font-weight:600;color:var(--c-text-weak);
}
.mobile-collapse .nav-link.active{background:var(--c-bg);color:var(--c-primary)}
.mobile-search{
  display:flex;align-items:center;gap:8px;
  background:var(--c-bg);border:1px solid var(--c-border);
  border-radius:12px;padding:10px 14px;margin-bottom:10px;
}
.mobile-search input{border:none;outline:none;background:transparent;width:100%;font-size:14px}
.mobile-cta{padding-top:12px}
/* ---------- Hero ---------- */
.faq-hero{
  position:relative;
  margin-top:72px;
  padding:110px 0 100px;
  background:linear-gradient(105deg,rgba(10,20,32,.94) 0%,rgba(18,35,53,.82) 55%,rgba(27,47,71,.68) 100%),url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color:#fff;
  overflow:hidden;
}
.faq-hero::after{
  content:"";position:absolute;right:-80px;top:-80px;width:360px;height:360px;
  background:radial-gradient(circle,rgba(212,168,83,.18) 0%,transparent 70%);
  border-radius:50%;pointer-events:none;
}
.faq-hero .container{position:relative;z-index:2}
.faq-breadcrumb{
  display:flex;align-items:center;gap:10px;
  font-size:14px;color:rgba(255,255,255,.65);margin-bottom:18px;
}
.faq-breadcrumb a{color:rgba(255,255,255,.8)}
.faq-breadcrumb a:hover{color:var(--c-accent)}
.faq-breadcrumb i{font-size:11px}
.faq-hero h1{
  font-size:3rem;color:#fff;font-weight:800;letter-spacing:-.02em;
  margin-bottom:16px;max-width:660px;
}
.faq-hero h1 span{color:var(--c-accent)}
.faq-hero p{
  color:rgba(255,255,255,.75);font-size:1.1rem;max-width:600px;margin-bottom:32px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px}
.hero-tags .tag{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);
  color:#fff;border-radius:30px;padding:7px 16px;font-size:13px;
  backdrop-filter:blur(6px);
}
.hero-tags .tag i{color:var(--c-accent)}
/* ---------- Quick Nav ---------- */
.quick-nav-wrap{
  margin-top:-42px;position:relative;z-index:5;
}
.quick-nav-card{
  background:var(--c-surface);
  border-radius:var(--radius-lg);
  padding:28px 32px;
  box-shadow:var(--shadow-md);
  border:1px solid var(--c-border);
  display:flex;align-items:center;gap:24px;flex-wrap:wrap;
}
.quick-nav-label{
  display:flex;align-items:center;gap:10px;
  font-weight:700;color:var(--c-primary);margin-right:8px;
}
.quick-nav-label i{color:var(--c-accent);font-size:18px}
.quick-nav-links{display:flex;flex-wrap:wrap;gap:10px}
.quick-nav-links a{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 18px;border-radius:30px;
  background:var(--c-bg);border:1px solid var(--c-border);
  font-size:14px;font-weight:600;color:var(--c-text-weak);
  transition:all .25s;
}
.quick-nav-links a:hover{border-color:var(--c-accent);color:var(--c-primary);background:rgba(212,168,83,.06)}
/* ---------- FAQ Section ---------- */
.faq-section{background:var(--c-surface);padding:80px 0}
.faq-layout{
  display:grid;grid-template-columns:280px 1fr;gap:48px;
}
.faq-cat-list{
  position:sticky;top:96px;height:max-content;
  background:var(--c-bg);border:1px solid var(--c-border);
  border-radius:var(--radius-md);padding:18px;
  display:flex;flex-direction:column;gap:4px;
}
.faq-cat-list .cat-item{
  display:flex;align-items:center;gap:10px;
  padding:11px 14px;border-radius:12px;
  font-size:14px;font-weight:600;color:var(--c-text-weak);
  cursor:pointer;transition:all .22s;border:1px solid transparent;
}
.faq-cat-list .cat-item i{width:20px;color:var(--c-accent);opacity:.85}
.faq-cat-list .cat-item:hover{background:#fff;color:var(--c-primary);border-color:var(--c-border)}
.faq-cat-list .cat-item.active{background:var(--c-primary);color:#fff}
.faq-cat-list .cat-item.active i{color:var(--c-accent)}
.faq-panel-title{
  font-size:1.6rem;font-weight:700;margin-bottom:8px;display:flex;align-items:center;gap:12px;
}
.faq-panel-title i{color:var(--c-accent)}
.faq-panel-desc{color:var(--c-text-weak);margin-bottom:28px}
.accordion-item{
  border:1px solid var(--c-border) !important;
  border-radius:var(--radius-md) !important;
  margin-bottom:14px;
  overflow:hidden;
  background:var(--c-surface);
  box-shadow:var(--shadow-sm);
  transition:box-shadow .25s;
}
.accordion-item:last-child{margin-bottom:0}
.accordion-button{
  padding:20px 24px;
  font-size:15px;font-weight:700;color:var(--c-text);
  background:var(--c-surface);
  border:none;
  gap:14px;
  box-shadow:none !important;
}
.accordion-button:not(.collapsed){
  color:var(--c-primary);
  background:rgba(212,168,83,.05);
  box-shadow:none;
}
.accordion-button::after{
  background:none;
  content:"\f078";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  width:auto;height:auto;
  color:var(--c-accent);
  transition:transform .3s;
}
.accordion-button:not(.collapsed)::after{
  transform:rotate(180deg);
  background:none;
  color:var(--c-accent);
}
.accordion-body{
  padding:8px 24px 24px;
  color:var(--c-text-weak);
  font-size:15px;
}
/* ---------- Steps ---------- */
.steps-section{
  background:var(--c-bg);
  padding:80px 0;
}
.steps-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
}
.step-card{
  background:var(--c-surface);
  border:1px solid var(--c-border);
  border-radius:var(--radius-lg);
  padding:36px 28px;
  position:relative;
  box-shadow:var(--shadow-sm);
  transition:transform .3s, box-shadow .3s;
}
.step-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md)}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:14px;
  background:linear-gradient(135deg,var(--c-accent),var(--c-accent-2));
  color:#fff;font-weight:800;font-size:17px;
  margin-bottom:20px;box-shadow:0 8px 20px rgba(212,168,83,.32);
}
.step-card h3{font-size:17px;margin-bottom:10px}
.step-card p{font-size:14px;color:var(--c-text-weak);margin-bottom:0}
/* ---------- Deep Diver ---------- */
.deep-section{background:var(--c-surface);padding:80px 0}
.feature-row{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
}
.feature-img{
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-md);
  position:relative;
}
.feature-img img{width:100%;height:100%;object-fit:cover;min-height:320px}
.feature-img::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(145deg,rgba(10,20,32,.12),transparent 55%);
}
.feature-content .feature-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(212,168,83,.12);
  color:var(--c-accent-2);
  font-size:13px;font-weight:700;
  padding:6px 16px;border-radius:30px;margin-bottom:18px;
}
.feature-content h2{font-size:2rem;margin-bottom:18px}
.feature-content p{color:var(--c-text-weak);font-size:15px;margin-bottom:16px}
.feature-list{list-style:none;padding:0;margin:20px 0 28px}
.feature-list li{
  display:flex;align-items:flex-start;gap:12px;
  padding:9px 0;font-size:15px;
}
.feature-list li i{
  color:var(--c-accent);
  margin-top:5px;
  width:18px;
}
/* ---------- CTA ---------- */
.cta-banner{
  background:linear-gradient(120deg,var(--c-primary) 0%,#162b3f 65%,#1e3852 100%);
  border-radius:var(--radius-lg);
  padding:60px;
  color:#fff;
  position:relative;overflow:hidden;
}
.cta-banner::before{
  content:"";position:absolute;right:-30px;top:-30px;width:240px;height:240px;
  background:radial-gradient(circle,rgba(212,168,83,.22) 0%,transparent 65%);
}
.cta-banner h2{color:#fff;font-size:1.85rem;margin-bottom:12px}
.cta-banner p{color:rgba(255,255,255,.72);font-size:15px;max-width:560px;margin-bottom:28px}
.cta-banner .btn-cta-light{
  display:inline-flex;align-items:center;gap:10px;
  background:var(--c-accent);color:#fff;
  padding:13px 36px;border-radius:30px;
  font-weight:700;border:none;
  box-shadow:0 8px 30px rgba(212,168,83,.4);
  transition:transform .25s, box-shadow .25s;
}
.cta-banner .btn-cta-light:hover{transform:translateY(-3px);box-shadow:0 14px 40px rgba(212,168,83,.5);color:#fff}
/* ---------- Footer ---------- */
.site-footer{
  background:var(--c-dark);
  color:rgba(255,255,255,.72);
  padding:70px 0 30px;
  margin-top:0;
}
.footer-top{
  display:grid;grid-template-columns:2fr 1fr 1fr;gap:48px;
  padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.08);
}
.footer-brand{
  font-size:20px;font-weight:800;color:#fff;
  display:flex;align-items:center;gap:9px;margin-bottom:16px;
}
.footer-brand i{color:var(--c-accent);font-size:22px}
.footer-brand span{color:var(--c-accent)}
.footer-desc{font-size:14px;line-height:1.8;max-width:360px;color:rgba(255,255,255,.55)}
.footer-title{
  font-size:15px;color:#fff;font-weight:700;
  margin-bottom:18px;letter-spacing:.02em;
}
.footer-links{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.6);transition:color .25s}
.footer-links a:hover{color:var(--c-accent)}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;
  padding-top:28px;font-size:13px;color:rgba(255,255,255,.4);
  flex-wrap:wrap;gap:10px;
}
.footer-bottom a{color:rgba(255,255,255,.5)}
.footer-bottom a:hover{color:var(--c-accent)}
/* ---------- Responsive ---------- */
@media(max-width:1024px){
  .faq-layout{grid-template-columns:1fr;gap:30px}
  .faq-cat-list{position:static;flex-direction:row;flex-wrap:wrap}
  .faq-cat-list .cat-item{flex:0 0 auto}
  .steps-grid{grid-template-columns:repeat(2,1fr)}
  .feature-row{grid-template-columns:1fr;gap:36px}
  .footer-top{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  .section-pad{padding:48px 0}
  .main-nav-desktop,.search-box{display:none}
  .navbar-toggle{display:inline-flex;align-items:center;justify-content:center}
  .faq-hero{padding:84px 0 76px;margin-top:60px}
  .faq-hero h1{font-size:2.2rem}
  .quick-nav-card{padding:20px}
  .cta-banner{padding:36px}
  .footer-top{grid-template-columns:1fr;gap:36px}
  .custom-navbar{height:60px}
}
@media(max-width:520px){
  .container{padding:0 18px}
  .steps-grid{grid-template-columns:1fr}
  .faq-hero h1{font-size:1.8rem}
  .section-head h2{font-size:1.6rem}
  .faq-panel-title{font-size:1.3rem}
  .quick-nav-links a{font-size:13px;padding:7px 14px}
  .footer-bottom{flex-direction:column;text-align:center;justify-content:center}
}