/* roulang page: index */
:root {
  --primary: #1e3c72;
  --primary-light: #2a5298;
  --secondary: #f59e0b;
  --secondary-dark: #d97706;
  --accent: #e11d48;
  --bg-main: #f8fafc;
  --bg-soft: #f1f5f9;
  --bg-dark: #0f172a;
  --text-main: #1e293b;
  --text-body: #334155;
  --text-muted: #64748b;
  --border-color: #e2e8f0;
  --white: #ffffff;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 999px;
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 16px 40px rgba(15, 23, 42, 0.12);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  color: var(--text-body);
  background-color: var(--bg-main);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

ul, ol {
  list-style: none;
}

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

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

/* Header & Navigation */
.site-header {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition);
}

.site-header.scrolled {
  box-shadow: var(--shadow-md);
}

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

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

.brand-logo .logo-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 20px;
  font-weight: 800;
  box-shadow: 0 4px 12px rgba(30, 60, 114, 0.25);
}

.brand-logo .logo-text {
  font-size: 22px;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: 1px;
  line-height: 1.2;
}

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

.nav-wrapper {
  display: flex;
  align-items: center;
  gap: 32px;
}

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

.main-nav a {
  padding: 8px 18px;
  border-radius: var(--radius-full);
  font-size: 15px;
  font-weight: 500;
  color: var(--text-body);
  transition: var(--transition);
  position: relative;
  white-space: nowrap;
}

.main-nav a:hover {
  color: var(--primary);
  background: rgba(30, 60, 114, 0.06);
}

.main-nav a.active {
  color: var(--primary);
  background: rgba(30, 60, 114, 0.1);
  font-weight: 600;
}

.main-nav a.active::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--secondary);
}

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

.btn-header {
  padding: 8px 20px;
  border-radius: var(--radius-full);
  font-size: 14px;
  font-weight: 600;
  background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
  color: var(--white);
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
  transition: var(--transition);
}

.btn-header:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(245, 158, 11, 0.4);
  color: var(--white);
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  color: var(--text-main);
  cursor: pointer;
  padding: 4px 8px;
}

/* Hero Section */
.hero-section {
  position: relative;
  background: linear-gradient(135deg, #0f172a 0%, #1e3c72 50%, #2a5298 100%);
  padding: 100px 0 0;
  overflow: hidden;
}

.hero-background {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  opacity: 0.15;
}

.hero-waves {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 80px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 320'%3E%3Cpath fill='%23f8fafc' fill-opacity='1' d='M0,224L80,213.3C160,203,320,181,480,186.7C640,192,800,224,960,224C1120,224,1280,192,1360,176L1440,160L1440,320L0,320Z'%3E%3C/path%3E%3C/svg%3E");
  background-size: cover;
  background-position: center;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding-bottom: 120px;
  color: var(--white);
  max-width: 860px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(8px);
  padding: 8px 20px;
  border-radius: var(--radius-full);
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 28px;
}

.hero-badge i {
  color: var(--secondary);
}

.hero-title {
  font-size: clamp(40px, 6vw, 64px);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 24px;
  letter-spacing: 2px;
}

.hero-title span {
  color: var(--secondary);
  position: relative;
  display: inline-block;
}

.hero-subtitle {
  font-size: clamp(16px, 2.5vw, 20px);
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 40px;
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-primary-hero {
  padding: 14px 36px;
  background: var(--secondary);
  color: var(--white);
  border-radius: var(--radius-full);
  font-size: 16px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
  box-shadow: 0 8px 24px rgba(245, 158, 11, 0.35);
}

.btn-primary-hero:hover {
  background: var(--secondary-dark);
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(245, 158, 11, 0.45);
  color: var(--white);
}

.btn-outline-hero {
  padding: 14px 36px;
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255, 255, 255, 0.6);
  border-radius: var(--radius-full);
  font-size: 16px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
}

.btn-outline-hero:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--white);
  color: var(--white);
  transform: translateY(-3px);
}

.hero-stats {
  position: relative;
  z-index: 2;
  margin-top: -40px;
  padding-bottom: 60px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 36px 40px;
}

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

.stat-number {
  font-size: 36px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
  margin-bottom: 4px;
}

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

/* Section Styles */
.section {
  padding: 90px 0;
}

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

.section-white {
  background: var(--white);
}

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

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 60px;
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(30, 60, 114, 0.08);
  color: var(--primary);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.section-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.3;
  margin-bottom: 16px;
}

.section-title span {
  color: var(--secondary);
}

.section-desc {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.8;
}

.section-dark .section-title {
  color: var(--white);
}

.section-dark .section-desc {
  color: rgba(255, 255, 255, 0.7);
}

.section-dark .section-eyebrow {
  background: rgba(255, 255, 255, 0.1);
  color: var(--secondary);
}

/* Feature Cards */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.feature-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 40px 32px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  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(--secondary));
  opacity: 0;
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

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

.feature-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 24px;
  margin-bottom: 24px;
  box-shadow: 0 8px 20px rgba(30, 60, 114, 0.2);
}

.feature-icon.gold {
  background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
  box-shadow: 0 8px 20px rgba(245, 158, 11, 0.2);
}

.feature-icon.rose {
  background: linear-gradient(135deg, var(--accent), #be123c);
  box-shadow: 0 8px 20px rgba(225, 29, 72, 0.2);
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 12px;
}

.feature-card p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* Category Cards */
.category-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.category-card {
  background: var(--white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

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

.category-card-image {
  height: 200px;
  overflow: hidden;
  position: relative;
}

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

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

.category-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(15, 23, 42, 0.7));
}

.category-card-body {
  padding: 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.category-card-body h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 10px;
}

.category-card-body p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  flex: 1;
}

.category-card-footer {
  padding-top: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.category-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  font-weight: 600;
  font-size: 14px;
}

.category-link i {
  transition: transform 0.3s ease;
}

.category-card:hover .category-link i {
  transform: translateX(6px);
}

/* Content / News List */
.content-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 40px;
  align-items: start;
}

.post-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.post-item {
  display: flex;
  gap: 20px;
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 20px;
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.post-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
}

.post-item-image {
  width: 160px;
  height: 120px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex-shrink: 0;
}

.post-item-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.post-item-content {
  flex: 1;
}

.post-item-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.post-item-category {
  background: rgba(30, 60, 114, 0.1);
  color: var(--primary);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 600;
}

.post-item-date {
  font-size: 13px;
  color: var(--text-muted);
}

.post-item-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 6px;
  line-height: 1.5;
  transition: var(--transition);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

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

.post-item-excerpt {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 10px;
}

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

.post-item-link i {
  font-size: 12px;
  transition: transform 0.3s ease;
}

.post-item:hover .post-item-link i {
  transform: translateX(4px);
}

.sidebar-panel {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  position: sticky;
  top: 100px;
}

.sidebar-panel h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--border-color);
  position: relative;
}

.sidebar-panel h3::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 48px;
  height: 2px;
  background: var(--secondary);
}

.sidebar-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.sidebar-list li a {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-body);
  font-size: 14px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.sidebar-list li a:hover {
  background: var(--bg-soft);
  color: var(--primary);
  padding-left: 20px;
}

.sidebar-list li a i {
  color: var(--secondary);
  font-size: 14px;
  width: 16px;
}

/* Process / Steps */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  position: relative;
}

.process-step {
  text-align: center;
  padding: 32px 20px;
  background: transparent;
  transition: var(--transition);
}

.process-step-number {
  font-size: 64px;
  font-weight: 800;
  color: transparent;
  -webkit-text-stroke: 2px var(--primary);
  margin-bottom: 16px;
  line-height: 1;
  opacity: 0.5;
}

.process-step h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 10px;
}

.process-step p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.6;
}

/* FAQ */
.faq-grid {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

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

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

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 28px;
  background: none;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
  text-align: left;
  transition: var(--transition);
}

.faq-question i {
  color: var(--secondary);
  font-size: 18px;
  transition: transform 0.3s ease;
  flex-shrink: 0;
  margin-left: 16px;
}

.faq-item.active .faq-question i {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.faq-answer-inner {
  padding: 0 28px 24px;
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.8;
  border-top: 1px solid var(--border-color);
  padding-top: 20px;
  margin-top: 0;
}

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

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
}

.cta-section::after {
  content: '';
  position: absolute;
  bottom: -50%;
  left: -10%;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.03);
}

.cta-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
}

.cta-content h2 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  color: var(--white);
  margin-bottom: 20px;
}

.cta-content p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 16px;
  margin-bottom: 36px;
  line-height: 1.8;
}

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

.cta-button {
  padding: 14px 40px;
  border-radius: var(--radius-full);
  font-size: 16px;
  font-weight: 700;
  transition: var(--transition);
}

.cta-button-primary {
  background: var(--white);
  color: var(--primary);
}

.cta-button-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
  color: var(--primary);
}

.cta-button-outline {
  border: 2px solid rgba(255, 255, 255, 0.6);
  color: var(--white);
}

.cta-button-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--white);
  color: var(--white);
  transform: translateY(-3px);
}

/* Footer */
.site-footer {
  background: var(--bg-dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 80px 0 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 60px;
}

.footer-brand img {
  margin-bottom: 20px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.6);
  max-width: 320px;
}

.footer-links h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 20px;
}

.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links ul li a {
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

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

.footer-links ul li a i {
  font-size: 10px;
  color: var(--secondary);
}

.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-bottom p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.5);
}

.footer-social {
  display: flex;
  gap: 12px;
}

.footer-social a {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.7);
  font-size: 16px;
  transition: var(--transition);
}

.footer-social a:hover {
  background: var(--secondary);
  color: var(--white);
  transform: translateY(-3px);
}

/* Responsive */
@media screen and (max-width: 1024px) {
  .nav-wrapper {
    gap: 20px;
  }
  
  .hero-title {
    font-size: 44px;
  }
  
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .category-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .content-grid {
    grid-template-columns: 1fr;
  }
  
  .sidebar-panel {
    position: static;
  }
}

@media screen and (max-width: 768px) {
  .header-inner {
    padding: 0 8px;
  }
  
  .mobile-toggle {
    display: block;
  }
  
  .nav-wrapper {
    position: fixed;
    top: 78px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    align-items: flex-start;
    padding: 24px;
    gap: 20px;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.5s ease, opacity 0.3s ease;
    box-shadow: var(--shadow-lg);
    border-radius: 0 0 var(--radius-md) var(--radius-md);
  }
  
  .nav-wrapper.open {
    max-height: 500px;
    opacity: 1;
  }
  
  .main-nav {
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
    gap: 4px;
  }
  
  .main-nav a {
    width: 100%;
    padding: 12px 16px;
  }
  
  .header-actions {
    width: 100%;
    flex-direction: column;
    gap: 12px;
  }
  
  .btn-header {
    width: 100%;
    text-align: center;
  }
  
  .hero-section {
    padding-top: 60px;
  }
  
  .hero-title {
    font-size: 36px;
  }
  
  .hero-subtitle {
    font-size: 16px;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    padding: 28px;
  }
  
  .feature-grid {
    grid-template-columns: 1fr;
  }
  
  .category-grid {
    grid-template-columns: 1fr;
  }
  
  .post-item {
    flex-direction: column;
  }
  
  .post-item-image {
    width: 100%;
    height: 180px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  
  .section {
    padding: 60px 0;
  }
  
  .cta-section {
    padding: 60px 0;
  }
}

@media screen and (max-width: 520px) {
  .container {
    padding: 0 16px;
  }
  
  .hero-content {
    padding-bottom: 80px;
  }
  
  .hero-title {
    font-size: 30px;
  }
  
  .hero-buttons {
    flex-direction: column;
    width: 100%;
  }
  
  .btn-primary-hero,
  .btn-outline-hero {
    width: 100%;
    justify-content: center;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  .stat-number {
    font-size: 28px;
  }
  
  .process-grid {
    grid-template-columns: 1fr;
  }
  
  .section-header {
    margin-bottom: 40px;
  }
  
  .faq-question {
    padding: 18px 20px;
    font-size: 15px;
  }
  
  .cta-button {
    width: 100%;
    text-align: center;
  }
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.6s ease forwards;
  opacity: 0;
}

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }

/* roulang page: article */
:root {
  --primary: #1b2a4a;
  --primary-dark: #121c33;
  --primary-light: #2a3a5f;
  --secondary: #c9a227;
  --secondary-light: #e0b84c;
  --bg: #f6f4f0;
  --bg-warm: #efece5;
  --white: #ffffff;
  --text: #1f2937;
  --text-light: #6b7280;
  --text-muted: #9ca3af;
  --border: #e5e1da;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
  --shadow-hover: 0 14px 44px rgba(0, 0, 0, 0.12);
  --transition: all 0.3s ease;
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "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: 1.75;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--secondary); }
ul, ol { list-style: none; }
button, input, textarea { font-family: inherit; font-size: inherit; }
i { font-style: normal; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; width: 100%; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 14px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  line-height: 1.4;
  text-decoration: none;
}
.btn i { font-size: 14px; }
.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(27, 42, 74, 0.25);
}
.btn-primary:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(27, 42, 74, 0.3);
  color: #fff;
}
.btn-outline {
  border-color: var(--primary);
  color: var(--primary);
  background: transparent;
}
.btn-outline:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-2px);
}
.btn-secondary {
  background: var(--secondary);
  color: #1b2a4a;
  box-shadow: 0 4px 14px rgba(201, 162, 39, 0.3);
}
.btn-secondary:hover {
  background: var(--secondary-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(201, 162, 39, 0.35);
  color: #1b2a4a;
}
.btn:active { transform: translateY(0) scale(0.98); }
.btn:focus-visible { outline: 3px solid rgba(201, 162, 39, 0.4); outline-offset: 2px; }

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(201, 162, 39, 0.12);
  color: #8a6d1a;
  padding: 6px 18px;
  border-radius: 30px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
}
.section-badge i { font-size: 12px; }

.section-title {
  font-size: 32px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.3;
  margin: 14px 0 10px;
  letter-spacing: -0.5px;
}
.section-subtitle {
  font-size: 15px;
  color: var(--text-light);
  max-width: 600px;
  line-height: 1.7;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 24px rgba(0, 0, 0, 0.05);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  position: relative;
}
.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  transition: transform 0.3s ease;
}
.brand-logo:hover { transform: translateX(-50%) scale(1.03); }
.logo-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 15px;
  letter-spacing: 0.5px;
  box-shadow: 0 4px 14px rgba(27, 42, 74, 0.3);
}
.logo-text {
  font-size: 21px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: 0.5px;
  white-space: nowrap;
}
.logo-text span { color: var(--secondary); }
.main-nav { display: flex; gap: 4px; }
.main-nav a {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  border-radius: 24px;
  color: var(--text);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
  white-space: nowrap;
}
.main-nav a i { font-size: 13px; color: var(--secondary); transition: var(--transition); }
.main-nav a:hover { background: var(--bg); color: var(--primary); }
.main-nav a:hover i { color: var(--primary); }
.main-nav a.active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(27, 42, 74, 0.25);
}
.main-nav a.active i { color: var(--secondary-light); }
.mobile-toggle {
  display: none;
  background: none;
  border: 2px solid var(--border);
  border-radius: 10px;
  width: 44px;
  height: 44px;
  font-size: 18px;
  color: var(--primary);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  z-index: 4;
}
.mobile-toggle:hover { border-color: var(--primary); background: var(--bg); }
.mobile-menu {
  display: none;
  padding: 12px 20px 20px;
  background: #fff;
  border-top: 1px solid var(--border);
  flex-direction: column;
  gap: 6px;
}
.mobile-menu a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 18px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
  transition: var(--transition);
  background: var(--bg);
}
.mobile-menu a i { width: 20px; text-align: center; color: var(--secondary); }
.mobile-menu a:hover, .mobile-menu a.active { background: var(--primary); color: #fff; }
.mobile-menu a:hover i, .mobile-menu a.active i { color: var(--secondary-light); }
.mobile-menu.open { display: flex; }

/* Article Hero */
.article-hero {
  position: relative;
  padding: 64px 0 48px;
  background: linear-gradient(135deg, rgba(18, 28, 51, 0.88) 0%, rgba(27, 42, 74, 0.82) 100%), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color: #fff;
}
.article-hero .container { position: relative; z-index: 2; }
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 24px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
  flex-wrap: wrap;
}
.breadcrumb a { color: rgba(255, 255, 255, 0.8); text-decoration: none; transition: var(--transition); }
.breadcrumb a:hover { color: var(--secondary-light); }
.breadcrumb i { font-size: 10px; color: rgba(255, 255, 255, 0.4); }
.breadcrumb .current { color: var(--secondary-light); }
.article-hero .cat-badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(201, 162, 39, 0.25);
  border: 1px solid rgba(201, 162, 39, 0.4);
  border-radius: 30px;
  font-size: 13px;
  font-weight: 600;
  color: var(--secondary-light);
  margin-bottom: 16px;
  letter-spacing: 1px;
}
.article-hero h1 {
  font-size: 36px;
  line-height: 1.35;
  font-weight: 800;
  max-width: 780px;
  letter-spacing: -0.5px;
  margin-bottom: 18px;
  word-break: break-word;
}
.hero-meta {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.65);
}
.hero-meta span { display: inline-flex; align-items: center; gap: 6px; }
.hero-meta i { font-size: 13px; color: var(--secondary-light); }

/* Content Section */
.article-content-section {
  padding: 64px 0 56px;
  background: var(--bg);
}
.content-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 44px;
  align-items: start;
}
.content-main { min-width: 0; }
.article-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 40px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(255, 255, 255, 0.7);
}
.article-body {
  font-size: 15.5px;
  line-height: 1.9;
  color: #2c3e50;
}
.article-body h2 {
  font-size: 24px;
  font-weight: 800;
  color: var(--primary);
  margin: 36px 0 16px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  letter-spacing: -0.3px;
}
.article-body h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
  margin: 28px 0 12px;
}
.article-body h4 {
  font-size: 17px;
  font-weight: 700;
  color: var(--primary);
  margin: 22px 0 10px;
}
.article-body p { margin-bottom: 18px; }
.article-body a { color: var(--secondary); text-decoration: underline; text-underline-offset: 4px; }
.article-body a:hover { color: var(--primary); }
.article-body ul, .article-body ol { margin: 0 0 18px 24px; padding: 0; }
.article-body ul li { list-style: disc; margin-bottom: 8px; }
.article-body ol li { list-style: decimal; margin-bottom: 8px; }
.article-body img {
  border-radius: 12px;
  box-shadow: var(--shadow);
  margin: 24px 0;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.article-body blockquote {
  border-left: 4px solid var(--secondary);
  background: rgba(201, 162, 39, 0.06);
  padding: 20px 24px;
  border-radius: 0 12px 12px 0;
  margin: 24px 0;
  font-style: italic;
  color: var(--text-light);
}
.article-body table { width: 100%; border-collapse: collapse; margin: 24px 0; }
.article-body table th, .article-body table td { padding: 12px 16px; border: 1px solid var(--border); text-align: left; }
.article-body table th { background: var(--bg); font-weight: 700; color: var(--primary); }
.article-body code { background: var(--bg); padding: 2px 8px; border-radius: 4px; font-size: 14px; }

.not-found-box {
  text-align: center;
  padding: 80px 30px;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.not-found-box .icon {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: rgba(201, 162, 39, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  font-size: 30px;
  color: var(--secondary);
}
.not-found-box h2 { font-size: 26px; font-weight: 700; color: var(--primary); margin-bottom: 12px; }
.not-found-box p { color: var(--text-light); margin-bottom: 28px; font-size: 15px; }

/* Sidebar */
.sidebar { display: flex; flex-direction: column; gap: 28px; position: sticky; top: 100px; }
.side-widget {
  background: var(--white);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(255, 255, 255, 0.8);
}
.side-widget h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--bg);
  position: relative;
}
.side-widget h3::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 34px;
  height: 2px;
  background: var(--secondary);
  border-radius: 2px;
}
.side-cats { display: flex; flex-direction: column; gap: 8px; }
.side-cats a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-radius: 10px;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  transition: var(--transition);
}
.side-cats a i { color: var(--secondary); font-size: 12px; transition: var(--transition); }
.side-cats a:hover {
  background: var(--primary);
  color: #fff;
  transform: translateX(4px);
}
.side-cats a:hover i { color: var(--secondary-light); }
.side-posts { display: flex; flex-direction: column; gap: 14px; }
.side-post-item { display: flex; gap: 12px; align-items: flex-start; }
.side-post-item .thumb {
  width: 72px;
  height: 60px;
  border-radius: 8px;
  flex-shrink: 0;
  object-fit: cover;
}
.side-post-item .info { min-width: 0; }
.side-post-item .info a {
  display: block;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.5;
  text-decoration: none;
  transition: var(--transition);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.side-post-item .info a:hover { color: var(--secondary); }
.side-post-item .info time { font-size: 12px; color: var(--text-muted); margin-top: 4px; display: block; }
.side-card-cta {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  border-radius: var(--radius);
  padding: 30px 26px;
  color: #fff;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.side-card-cta::before {
  content: '';
  position: absolute;
  top: -40px;
  right: -40px;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: rgba(201, 162, 39, 0.2);
}
.side-card-cta h4 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.side-card-cta p { font-size: 13px; color: rgba(255, 255, 255, 0.75); margin-bottom: 18px; line-height: 1.6; }
.side-card-cta .btn { width: 100%; }

/* Related Section */
.related-section {
  padding: 64px 0;
  background: var(--bg-warm);
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 36px;
}
.related-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid rgba(255, 255, 255, 0.6);
}
.related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.related-card .cover { height: 180px; overflow: hidden; }
.related-card .cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.related-card:hover .cover img { transform: scale(1.05); }
.related-card .body { padding: 22px; }
.related-card .cat {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--secondary);
  background: rgba(201, 162, 39, 0.1);
  padding: 3px 12px;
  border-radius: 20px;
  margin-bottom: 10px;
}
.related-card h3 { font-size: 16px; font-weight: 700; line-height: 1.5; margin-bottom: 8px; }
.related-card h3 a { color: var(--text); text-decoration: none; transition: var(--transition); }
.related-card h3 a:hover { color: var(--secondary); }
.related-card .meta { font-size: 12px; color: var(--text-muted); display: flex; align-items: center; gap: 6px; }

/* FAQ */
.faq-section { padding: 64px 0; background: var(--bg); }
.faq-grid {
  max-width: 860px;
  margin: 36px auto 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.faq-item {
  background: var(--white);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  padding: 22px 26px;
  transition: var(--transition);
}
.faq-item:hover { border-color: var(--secondary); box-shadow: var(--shadow); }
.faq-item summary {
  font-size: 16px;
  font-weight: 600;
  color: var(--primary);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 12px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::before {
  content: '\f0da';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  font-size: 14px;
  color: var(--secondary);
  transition: var(--transition);
}
.faq-item[open] summary::before { transform: rotate(90deg); }
.faq-item .answer {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px dashed var(--border);
  color: var(--text-light);
  font-size: 14px;
  line-height: 1.8;
}

/* CTA */
.cta-section {
  padding: 72px 0;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 60%, var(--primary-light) 100%);
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: rgba(201, 162, 39, 0.15);
  top: -80px;
  right: -60px;
}
.cta-section::after {
  content: '';
  position: absolute;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
  bottom: -50px;
  left: 10%;
}
.cta-inner { text-align: center; position: relative; z-index: 2; }
.cta-inner h2 {
  color: #fff;
  font-size: 30px;
  font-weight: 800;
  line-height: 1.4;
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}
.cta-inner p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 15px;
  max-width: 520px;
  margin: 0 auto 28px;
  line-height: 1.7;
}
.cta-btns { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

/* Footer */
.site-footer {
  background: #152238;
  color: rgba(255, 255, 255, 0.7);
  padding: 56px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
}
.footer-brand .brand-logo {
  position: static;
  transform: none;
  display: flex;
  align-items: center;
  gap: 10px;
}
.footer-brand .brand-logo:hover { transform: none; }
.footer-brand .logo-icon {
  background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-light) 100%);
  color: var(--primary);
  box-shadow: 0 4px 14px rgba(201, 162, 39, 0.3);
}
.footer-brand .logo-text { color: var(--white); }
.footer-brand .logo-text span { color: var(--secondary); }
.footer-brand p { font-size: 13px; line-height: 1.8; color: rgba(255, 255, 255, 0.6); }
.footer-links h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 10px;
}
.footer-links h3::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 24px;
  height: 2px;
  background: var(--secondary);
}
.footer-links ul { display: flex; flex-direction: column; gap: 10px; }
.footer-links a {
  color: rgba(255, 255, 255, 0.65);
  font-size: 13px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
}
.footer-links a i { font-size: 11px; color: var(--secondary); }
.footer-links a:hover { color: var(--secondary-light); padding-left: 4px; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 22px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-bottom p { font-size: 13px; color: rgba(255, 255, 255, 0.45); }
.footer-social { display: flex; gap: 10px; }
.footer-social a {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.7);
  font-size: 15px;
  transition: var(--transition);
}
.footer-social a:hover { background: var(--secondary); color: var(--primary); transform: translateY(-3px); }

/* Back to top */
.back-top {
  position: fixed;
  right: 28px;
  bottom: 28px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  border: none;
  font-size: 16px;
  cursor: pointer;
  box-shadow: 0 6px 20px rgba(27, 42, 74, 0.3);
  z-index: 90;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  opacity: 0;
  visibility: hidden;
}
.back-top.visible { opacity: 1; visibility: visible; }
.back-top:hover { background: var(--secondary); color: var(--primary); transform: translateY(-4px); }

/* Media Queries */
@media (max-width: 1024px) {
  .content-layout { grid-template-columns: 1fr; }
  .sidebar { position: static; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .main-nav a { padding: 9px 12px; font-size: 13px; }
}

@media (max-width: 768px) {
  .header-inner { min-height: 64px; }
  .brand-logo { position: static; transform: none; }
  .main-nav { display: none; }
  .mobile-toggle { display: flex; }
  .mobile-menu.open { display: flex; }
  .article-hero { padding: 44px 0 32px; }
  .article-hero h1 { font-size: 26px; }
  .article-card { padding: 24px; }
  .article-body { font-size: 15px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .related-grid { grid-template-columns: 1fr; }
  .sidebar { grid-template-columns: 1fr; }
  .cta-inner h2 { font-size: 24px; }
  .section-title { font-size: 26px; }
  .back-top { right: 16px; bottom: 16px; width: 40px; height: 40px; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .article-hero h1 { font-size: 22px; }
  .article-card { padding: 18px; }
  .hero-meta { gap: 12px; font-size: 12px; }
  .btn { padding: 10px 20px; font-size: 13px; }
  .cta-btns { flex-direction: column; align-items: center; }
  .cta-btns .btn { width: 100%; max-width: 260px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .logo-text { font-size: 17px; }
  .logo-icon { width: 36px; height: 36px; font-size: 13px; }
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
:root {
  --primary: #0f2a43;
  --primary-light: #1c3d5e;
  --primary-dark: #091c2e;
  --secondary: #c9a063;
  --secondary-light: #e0c08a;
  --bg: #f8f5f0;
  --bg-alt: #edf0f4;
  --bg-deep: #0a1a28;
  --white: #ffffff;
  --text: #1c1c1e;
  --text-muted: #6b6b6b;
  --border: #e3ddd4;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 12px 40px rgba(15, 42, 67, 0.08);
  --shadow-lg: 0 24px 60px rgba(15, 42, 67, 0.14);
  --transition: all .3s ease;
  --font-sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

/* ===== 基础 Reset ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}
img {
  max-width: 100%;
  display: inline-block;
  vertical-align: middle;
}
button,
input,
textarea {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
  background: none;
}
ul,
ol {
  list-style: none;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* ===== 头部导航 ===== */
.site-header {
  position: relative;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 6px 30px rgba(15, 42, 67, 0.06);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 82px;
  position: relative;
}
.header-logo {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  top: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
}
.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: var(--white);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 1px;
  box-shadow: 0 8px 20px rgba(15, 42, 67, 0.25);
}
.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 1px;
  white-space: nowrap;
}
.logo-text span {
  color: var(--secondary);
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 24px;
}
.main-nav a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-muted);
  padding: 9px 14px;
  border-radius: 999px;
  line-height: 1.2;
}
.main-nav a i {
  font-size: 13px;
  color: var(--secondary);
}
.main-nav a:hover,
.main-nav a.active {
  color: var(--primary);
  background: rgba(15, 42, 67, 0.06);
}
.main-nav a.active {
  font-weight: 600;
  background: rgba(201, 160, 99, 0.18);
  color: var(--primary);
}
.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(15, 42, 67, 0.06);
  color: var(--primary);
  font-size: 20px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.mobile-menu {
  display: none;
  border-top: 1px solid var(--border);
  background: var(--white);
  padding: 16px 24px;
}
.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.mobile-nav a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 16px;
  border-radius: var(--radius-sm);
  color: var(--text);
  font-weight: 500;
  background: var(--bg);
}
.mobile-nav a i {
  color: var(--secondary);
  width: 18px;
  text-align: center;
}
.mobile-nav a.active {
  background: rgba(201, 160, 99, 0.2);
  color: var(--primary);
  font-weight: 600;
}

/* ===== Hero / Banner ===== */
.page-hero {
  position: relative;
  padding: 110px 0 100px;
  background: linear-gradient(135deg, rgba(10, 26, 40, 0.92), rgba(15, 42, 67, 0.82)), url('/assets/images/backpic/back-1.png') center / cover no-repeat;
  color: var(--white);
  text-align: center;
  overflow: hidden;
}
.page-hero::after {
  content: '';
  position: absolute;
  bottom: -40px;
  left: 0;
  width: 100%;
  height: 80px;
  background: var(--bg);
  border-radius: 50% 50% 0 0;
}
.page-hero .container {
  position: relative;
  z-index: 2;
}
.hero-breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.hero-breadcrumb a {
  color: var(--secondary-light);
}
.hero-breadcrumb a:hover {
  color: var(--secondary);
}
.hero-breadcrumb i {
  font-size: 10px;
  color: rgba(255, 255, 255, 0.4);
}
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(201, 160, 99, 0.16);
  border: 1px solid rgba(201, 160, 99, 0.4);
  color: var(--secondary-light);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  padding: 8px 20px;
  border-radius: 999px;
  margin-bottom: 22px;
}
.page-hero h1 {
  font-size: 46px;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: 1px;
  margin-bottom: 18px;
}
.page-hero h1 span {
  color: var(--secondary-light);
}
.page-hero p {
  font-size: 17px;
  max-width: 680px;
  margin: 0 auto;
  color: rgba(255, 255, 255, 0.82);
  line-height: 1.8;
}
.hero-btn-group {
  margin-top: 34px;
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: 999px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.3;
  cursor: pointer;
  transition: var(--transition);
}
.btn-primary {
  background: var(--secondary);
  color: var(--primary-dark);
  box-shadow: 0 8px 24px rgba(201, 160, 99, 0.35);
}
.btn-primary:hover {
  background: var(--secondary-light);
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(201, 160, 99, 0.4);
}
.btn-outline {
  border: 2px solid rgba(255, 255, 255, 0.6);
  color: var(--white);
}
.btn-outline:hover {
  border-color: var(--white);
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}
.btn-dark {
  background: var(--primary);
  color: var(--white);
  box-shadow: 0 8px 24px rgba(15, 42, 67, 0.2);
}
.btn-dark:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(15, 42, 67, 0.28);
}

/* ===== 通用板块 ===== */
.section {
  padding: 90px 0;
}
.section-alt {
  background: var(--bg-alt);
}
.section-head {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 54px;
}
.section-tag {
  display: inline-block;
  background: rgba(201, 160, 99, 0.15);
  color: var(--secondary);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 14px;
}
.section-head h2 {
  font-size: 34px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.3;
  margin-bottom: 14px;
}
.section-head p {
  color: var(--text-muted);
  font-size: 16px;
  line-height: 1.8;
}

/* ===== 子分类标签 ===== */
.sub-tags {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 30px;
}
.sub-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 10px 24px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.sub-tag i {
  color: var(--secondary);
}
.sub-tag:hover {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
  transform: translateY(-3px);
}
.sub-tag:hover i {
  color: var(--secondary-light);
}

/* ===== 分类说明卡片 ===== */
.category-intro-wrap {
  margin-top: -50px;
  position: relative;
  z-index: 5;
}
.intro-card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 44px;
  display: flex;
  gap: 40px;
  align-items: center;
  flex-wrap: wrap;
}
.intro-media {
  flex: 0 0 260px;
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
}
.intro-media img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}
.intro-content {
  flex: 1;
  min-width: 280px;
}
.intro-content h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.intro-content h3 i {
  color: var(--secondary);
}
.intro-content p {
  color: var(--text-muted);
  line-height: 1.9;
  margin-bottom: 16px;
}
.intro-features {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}
.intro-features span {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 7px 15px;
  font-size: 13px;
  font-weight: 500;
  color: var(--primary);
}
.intro-features span i {
  color: var(--secondary);
  margin-right: 5px;
}

/* ===== 卡片网格 ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.guide-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid rgba(227, 221, 212, 0.5);
  display: flex;
  flex-direction: column;
}
.guide-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.guide-card-media {
  position: relative;
  height: 200px;
  overflow: hidden;
}
.guide-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.guide-card:hover .guide-card-media img {
  transform: scale(1.06);
}
.guide-card-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  background: rgba(15, 42, 67, 0.82);
  color: var(--secondary-light);
  font-size: 12px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 999px;
  backdrop-filter: blur(6px);
}
.guide-card-body {
  padding: 26px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.guide-card-body h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.45;
  margin-bottom: 10px;
}
.guide-card-body h3 a:hover {
  color: var(--secondary);
}
.guide-card-body p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.75;
  flex: 1;
  margin-bottom: 18px;
}
.card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--text-muted);
  border-top: 1px solid var(--bg-alt);
  padding-top: 16px;
}
.card-meta span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.card-meta i {
  color: var(--secondary);
  font-size: 12px;
}

/* ===== 流程步骤 ===== */
.steps-wrap {
  position: relative;
}
.steps-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  counter-reset: step;
}
.step-item {
  background: var(--white);
  border-radius: var(--radius);
  padding: 30px 22px;
  text-align: center;
  box-shadow: var(--shadow);
  border-top: 4px solid var(--secondary);
  transition: var(--transition);
  position: relative;
}
.step-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}
.step-num {
  font-size: 30px;
  font-weight: 800;
  color: var(--secondary);
  line-height: 1;
  margin-bottom: 14px;
}
.step-item h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
}
.step-item p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ===== 数据统计 ===== */
.stats-section {
  background: linear-gradient(135deg, rgba(10, 26, 40, 0.96), rgba(15, 42, 67, 0.9)), url('/assets/images/backpic/back-2.png') center / cover no-repeat;
  color: var(--white);
  padding: 90px 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}
.stat-item {
  text-align: center;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius);
  padding: 38px 20px;
  transition: var(--transition);
}
.stat-item:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(201, 160, 99, 0.5);
}
.stat-icon {
  font-size: 34px;
  color: var(--secondary-light);
  margin-bottom: 16px;
}
.stat-item strong {
  display: block;
  font-size: 42px;
  font-weight: 800;
  color: var(--white);
  line-height: 1.3;
}
.stat-item p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.75);
  margin-top: 6px;
  letter-spacing: 1px;
}

/* ===== FAQ ===== */
.faq-wrap {
  max-width: 860px;
  margin: 0 auto;
}
.faq-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
  overflow: hidden;
  box-shadow: 0 4px 18px rgba(15, 42, 67, 0.04);
  transition: var(--transition);
}
.faq-item:hover {
  box-shadow: var(--shadow);
}
.faq-q {
  padding: 22px 28px;
  font-size: 17px;
  font-weight: 600;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 14px;
  cursor: pointer;
  user-select: none;
}
.faq-q i {
  color: var(--secondary);
  font-size: 18px;
}
.faq-q .fa-chevron-down {
  margin-left: auto;
  font-size: 14px;
  transition: var(--transition);
}
.faq-item.active .faq-q .fa-chevron-down {
  transform: rotate(180deg);
}
.faq-a {
  padding: 0 28px 22px;
  color: var(--text-muted);
  line-height: 1.85;
  font-size: 15px;
  display: none;
}
.faq-item.active .faq-a {
  display: block;
}

/* ===== CTA ===== */
.cta-section {
  padding: 90px 0;
}
.cta-card {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: calc(var(--radius) + 6px);
  padding: 54px 44px;
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  flex-wrap: wrap;
  position: relative;
  overflow: hidden;
}
.cta-card::before {
  content: '';
  position: absolute;
  right: -60px;
  top: -60px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: rgba(201, 160, 99, 0.18);
}
.cta-card::after {
  content: '';
  position: absolute;
  right: 40px;
  bottom: -80px;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
}
.cta-text {
  flex: 1;
  min-width: 260px;
  position: relative;
  z-index: 2;
}
.cta-text h2 {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 12px;
}
.cta-text p {
  color: rgba(255, 255, 255, 0.82);
  font-size: 15px;
  line-height: 1.8;
}
.cta-btn {
  position: relative;
  z-index: 2;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--bg-deep);
  color: rgba(255, 255, 255, 0.72);
  padding-top: 70px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 50px;
  padding-bottom: 45px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.footer-brand p {
  margin-top: 20px;
  font-size: 14px;
  line-height: 1.9;
  max-width: 340px;
  color: rgba(255, 255, 255, 0.62);
}
.footer-links h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 22px;
  position: relative;
  padding-bottom: 12px;
}
.footer-links h3::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 30px;
  height: 3px;
  border-radius: 3px;
  background: var(--secondary);
}
.footer-links ul li {
  margin-bottom: 12px;
}
.footer-links ul a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.62);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
}
.footer-links ul a i {
  font-size: 11px;
  color: var(--secondary);
  transition: var(--transition);
}
.footer-links ul a:hover {
  color: var(--secondary-light);
  padding-left: 5px;
}
.footer-bottom {
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.footer-bottom p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.5);
}
.footer-social {
  display: flex;
  gap: 14px;
}
.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.7);
  transition: var(--transition);
}
.footer-social a:hover {
  background: var(--secondary);
  color: var(--primary-dark);
  border-color: var(--secondary);
  transform: translateY(-3px);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .header-nav-left .main-nav,
  .header-nav-right .main-nav {
    display: none;
  }
  .menu-toggle {
    display: flex;
  }
  .header-logo {
    position: static;
    transform: none;
    margin: 0 auto;
  }
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .steps-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-hero h1 {
    font-size: 36px;
  }
  .section-head h2 {
    font-size: 30px;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 70px 0;
  }
  .header-inner {
    min-height: 70px;
  }
  .page-hero {
    padding: 80px 0 90px;
  }
  .page-hero h1 {
    font-size: 30px;
  }
  .page-hero p {
    font-size: 15px;
  }
  .intro-card {
    padding: 30px;
    gap: 24px;
    flex-direction: column;
  }
  .intro-media {
    flex: none;
    width: 100%;
  }
  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  .cta-card {
    padding: 36px 28px;
  }
  .cta-text h2 {
    font-size: 22px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
}

@media (max-width: 520px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
  .card-grid {
    grid-template-columns: 1fr;
  }
  .steps-grid {
    grid-template-columns: 1fr;
  }
  .stats-grid {
    grid-template-columns: 1fr;
  }
  .page-hero h1 {
    font-size: 25px;
  }
  .hero-btn-group {
    flex-direction: column;
    align-items: center;
  }
  .btn {
    width: 100%;
    justify-content: center;
  }
  .section-head h2 {
    font-size: 24px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  .intro-features span {
    font-size: 12px;
  }
}

/* ===== 可访问性 ===== */
a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--secondary);
  outline-offset: 3px;
}

/* roulang page: category3 */
:root {
  --primary: #1e2a3a;
  --primary-light: #2d4055;
  --secondary: #c8a86b;
  --secondary-dark: #b3925a;
  --bg: #f6f3ee;
  --bg-alt: #ebe6de;
  --white: #ffffff;
  --text: #2a2e35;
  --text-muted: #7a8088;
  --border: #e2ddd3;
  --radius: 16px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 10px rgba(0,0,0,.05);
  --shadow-md: 0 10px 30px rgba(0,0,0,.08);
  --shadow-lg: 0 20px 50px rgba(0,0,0,.10);
  --transition: all .25s ease;
  --container-width: 1200px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

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

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

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

ul, ol {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  line-height: 1.3;
  font-weight: 700;
  color: var(--primary);
}

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

/* ===== Header / Nav ===== */
.site-header {
  background: var(--primary);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 4px 20px rgba(0,0,0,.15);
}

.header-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 16px 24px 12px;
  max-width: var(--container-width);
  margin: 0 auto;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}

.logo-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--secondary);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 18px;
  letter-spacing: .5px;
  box-shadow: 0 4px 14px rgba(200,168,107,.3);
}

.logo-text {
  font-size: 24px;
  font-weight: 800;
  color: var(--white);
  letter-spacing: 1px;
}

.logo-text span {
  color: var(--secondary);
}

.main-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 4px;
}

.main-nav a {
  color: rgba(255,255,255,.75);
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
}

.main-nav a i {
  font-size: 13px;
  opacity: .8;
}

.main-nav a:hover,
.main-nav a:focus-visible {
  color: var(--white);
  background: rgba(255,255,255,.08);
}

.main-nav a.active {
  color: var(--primary);
  background: var(--secondary);
  font-weight: 600;
  box-shadow: 0 4px 16px rgba(200,168,107,.3);
}

.main-nav a:focus-visible {
  outline: 2px solid var(--secondary);
  outline-offset: 2px;
}

/* ===== Page Banner ===== */
.page-banner {
  position: relative;
  background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  padding: 110px 0 90px;
  text-align: center;
  color: var(--white);
}

.page-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(30,42,58,.92), rgba(30,42,58,.72));
}

.page-banner .container {
  position: relative;
  z-index: 2;
}

.page-banner .banner-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(200,168,107,.18);
  border: 1px solid rgba(200,168,107,.45);
  color: var(--secondary);
  padding: 6px 18px;
  border-radius: 999px;
  font-size: 13px;
  letter-spacing: 1px;
  margin-bottom: 18px;
}

.page-banner h1 {
  font-size: 44px;
  color: var(--white);
  margin-bottom: 14px;
  letter-spacing: 2px;
}

.page-banner p {
  font-size: 18px;
  max-width: 700px;
  margin: 0 auto;
  color: rgba(255,255,255,.85);
  line-height: 1.8;
}

.page-banner .banner-divider {
  width: 56px;
  height: 3px;
  background: var(--secondary);
  border-radius: 3px;
  margin: 22px auto 0;
}

/* ===== Section common ===== */
.section {
  padding: 80px 0;
}

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

.section-white {
  background: var(--white);
}

.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 50px;
}

.section-head .eyebrow {
  display: inline-block;
  color: var(--secondary-dark);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.section-head h2 {
  font-size: 32px;
  margin-bottom: 12px;
  position: relative;
}

.section-head h2::after {
  content: '';
  display: block;
  width: 44px;
  height: 3px;
  background: var(--secondary);
  border-radius: 3px;
  margin: 14px auto 0;
}

.section-head p {
  color: var(--text-muted);
  font-size: 16px;
  margin-top: 10px;
}

/* ===== News Feed ===== */
.news-feed .news-list {
  max-width: 960px;
  margin: 0 auto;
  border-top: 1px solid var(--border);
}

.news-item {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 24px 12px;
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
  border-radius: var(--radius-sm);
}

.news-item:hover {
  background: var(--white);
  padding-left: 18px;
  box-shadow: var(--shadow-sm);
}

.news-item .news-date {
  flex-shrink: 0;
  text-align: center;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  min-width: 76px;
}

.news-item .news-date .day {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
}

.news-item .news-date .month {
  font-size: 12px;
  color: var(--text-muted);
}

.news-item .news-content {
  flex: 1;
}

.news-item .news-content .tag-row {
  display: flex;
  gap: 8px;
  margin-bottom: 6px;
}

.news-tag {
  display: inline-block;
  background: rgba(200,168,107,.14);
  color: var(--secondary-dark);
  font-size: 12px;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: 999px;
  letter-spacing: .5px;
}

.news-item .news-content h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--primary);
  transition: var(--transition);
}

.news-item:hover .news-content h3 {
  color: var(--secondary-dark);
}

.news-item .news-content p {
  color: var(--text-muted);
  font-size: 14px;
  margin-top: 4px;
  line-height: 1.6;
}

.news-item .news-arrow {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-alt);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  transition: var(--transition);
}

.news-item:hover .news-arrow {
  background: var(--secondary);
  color: var(--primary);
  transform: translateX(4px);
}

/* ===== Insight Grid ===== */
.insight-grid .insight-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  height: 100%;
  transition: var(--transition);
  border: 1px solid var(--border);
}

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

.insight-card .insight-img {
  position: relative;
  overflow: hidden;
  height: 230px;
}

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

.insight-card:hover .insight-img img {
  transform: scale(1.05);
}

.insight-card .insight-img .img-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  background: var(--secondary);
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 999px;
}

.insight-card .insight-body {
  padding: 28px;
}

.insight-card .insight-body h3 {
  font-size: 20px;
  margin-bottom: 10px;
  line-height: 1.4;
}

.insight-card .insight-body p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.7;
}

.insight-card .insight-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 18px;
  font-size: 13px;
  color: var(--text-muted);
}

.insight-card .insight-meta i {
  color: var(--secondary-dark);
  margin-right: 4px;
}

/* ===== Stats ===== */
.stats-section {
  background: var(--primary);
  position: relative;
  overflow: hidden;
}

.stats-section::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: rgba(200,168,107,.12);
}

.stats-section::after {
  content: '';
  position: absolute;
  bottom: -80px;
  left: -40px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: rgba(200,168,107,.08);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  position: relative;
  z-index: 2;
}

.stat-item {
  text-align: center;
  color: var(--white);
  padding: 30px 16px;
}

.stat-item .stat-number {
  font-size: 48px;
  font-weight: 800;
  color: var(--secondary);
  line-height: 1.2;
}

.stat-item .stat-number small {
  font-size: 20px;
  margin-left: 2px;
}

.stat-item .stat-label {
  font-size: 15px;
  color: rgba(255,255,255,.75);
  margin-top: 8px;
}

.stat-item .stat-bar {
  width: 32px;
  height: 2px;
  background: var(--secondary);
  margin: 14px auto 0;
  border-radius: 2px;
}

/* ===== Topic Cards ===== */
.topic-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  height: 100%;
  border: 1px solid var(--border);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.topic-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.topic-card .topic-img {
  height: 180px;
  overflow: hidden;
}

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

.topic-card:hover .topic-img img {
  transform: scale(1.04);
}

.topic-card .topic-body {
  padding: 22px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.topic-card .topic-body .topic-label {
  font-size: 12px;
  color: var(--secondary-dark);
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.topic-card .topic-body h3 {
  font-size: 17px;
  line-height: 1.4;
  margin-bottom: 8px;
}

.topic-card .topic-body p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  flex: 1;
}

.topic-card .topic-link {
  margin-top: 16px;
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.topic-card .topic-link i {
  transition: transform .25s ease;
}

.topic-card:hover .topic-link i {
  transform: translateX(4px);
}

/* ===== Quote Block ===== */
.quote-section {
  background: var(--white);
}

.quote-block {
  max-width: 820px;
  margin: 0 auto;
  text-align: center;
  padding: 40px 20px;
  position: relative;
}

.quote-block .quote-icon {
  width: 56px;
  height: 56px;
  background: var(--secondary);
  color: var(--primary);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 20px;
  box-shadow: 0 8px 24px rgba(200,168,107,.35);
}

.quote-block blockquote {
  border: none;
  color: var(--primary);
  font-size: 22px;
  line-height: 1.8;
  font-weight: 500;
  padding: 0;
  margin-bottom: 20px;
}

.quote-block .quote-author {
  color: var(--text-muted);
  font-size: 14px;
  font-style: normal;
}

:not(pre) > code {
  background: transparent;
}

/* ===== FAQ ===== */
.faq-wrap {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
  padding: 22px 26px;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: var(--secondary);
  box-shadow: var(--shadow-sm);
}

.faq-item summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 16px;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 12px;
  list-style: none;
}

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

.faq-item summary .faq-icon {
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: rgba(200,168,107,.16);
  color: var(--secondary-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  transition: var(--transition);
}

.faq-item[open] summary .faq-icon {
  background: var(--secondary);
  color: var(--primary);
  transform: rotate(45deg);
}

.faq-item .faq-answer {
  margin-top: 12px;
  padding-left: 38px;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.8;
}

/* ===== CTA ===== */
.cta-section {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  padding: 70px 0;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, transparent, var(--secondary), transparent);
}

.cta-box {
  max-width: 680px;
  margin: 0 auto;
  text-align: center;
  color: var(--white);
  position: relative;
  z-index: 2;
}

.cta-box h2 {
  font-size: 32px;
  color: var(--white);
  margin-bottom: 12px;
}

.cta-box p {
  color: rgba(255,255,255,.75);
  font-size: 16px;
  margin-bottom: 28px;
}

.btn-group {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  transition: var(--transition);
  border: none;
  cursor: pointer;
}

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

.btn-primary:hover {
  background: var(--secondary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(200,168,107,.3);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(255,255,255,.5);
}

.btn-outline:hover {
  background: rgba(255,255,255,.1);
  border-color: var(--white);
  transform: translateY(-2px);
}

.btn:focus-visible {
  outline: 2px solid var(--secondary);
  outline-offset: 3px;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--primary);
  color: rgba(255,255,255,.75);
  padding: 60px 0 0;
}

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

.footer-brand p {
  max-width: 360px;
  font-size: 14px;
  line-height: 1.7;
}

.footer-links h3 {
  color: var(--white);
  font-size: 16px;
  margin-bottom: 16px;
}

.footer-links ul li {
  margin-bottom: 8px;
}

.footer-links ul li a {
  font-size: 14px;
  color: rgba(255,255,255,.65);
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

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

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

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  padding: 24px 0;
}

.footer-bottom p {
  font-size: 13px;
  color: rgba(255,255,255,.5);
}

.footer-social {
  display: flex;
  gap: 12px;
}

.footer-social a {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  color: rgba(255,255,255,.65);
  transition: var(--transition);
}

.footer-social a:hover {
  background: var(--secondary);
  color: var(--primary);
  border-color: var(--secondary);
}

/* ===== Wave divider ===== */
.wave-divider {
  display: block;
  width: 100%;
  height: 60px;
}

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

@media (max-width: 768px) {
  .site-header {
    position: static;
  }

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

  .page-banner h1 {
    font-size: 32px;
  }

  .page-banner p {
    font-size: 16px;
  }

  .section {
    padding: 56px 0;
  }

  .section-head h2 {
    font-size: 26px;
  }

  .news-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .news-item .news-date {
    min-width: auto;
  }

  .news-item .news-arrow {
    display: none;
  }

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

  .footer-brand p {
    max-width: 100%;
  }
}

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

  .brand-logo {
    margin-bottom: 8px;
  }

  .logo-text {
    font-size: 20px;
  }

  .main-nav {
    gap: 2px;
  }

  .main-nav a {
    padding: 6px 10px;
    font-size: 13px;
  }

  .page-banner {
    padding: 50px 0 44px;
  }

  .page-banner h1 {
    font-size: 26px;
  }

  .section-head h2 {
    font-size: 22px;
  }

  .stats-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .stat-item .stat-number {
    font-size: 38px;
  }

  .quote-block blockquote {
    font-size: 18px;
  }

  .cta-box h2 {
    font-size: 24px;
  }

  .btn-group {
    flex-direction: column;
    align-items: center;
  }

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

  .footer-bottom {
    justify-content: center;
    text-align: center;
  }
}

/* roulang page: category2 */
:root {
            --primary: #16283C;
            --primary-light: #243B52;
            --primary-bg: #E8EEF4;
            --secondary: #C8A15A;
            --secondary-dark: #A9843F;
            --accent: #E0714F;
            --bg: #F6F4EE;
            --bg-alt: #EDEAE2;
            --white: #FFFFFF;
            --dark: #101926;
            --text: #2A3038;
            --text-weak: #6C7580;
            --border: #E2DDD2;
            --radius-sm: 10px;
            --radius: 16px;
            --radius-lg: 24px;
            --shadow-sm: 0 2px 10px rgba(19, 34, 49, 0.06);
            --shadow: 0 8px 30px rgba(19, 34, 49, 0.08);
            --shadow-lg: 0 18px 50px rgba(19, 34, 49, 0.16);
            --transition: all 0.3s ease;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            text-rendering: optimizeLegibility;
        }

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

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

        ul,
        ol {
            list-style: none;
        }

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

        button {
            cursor: pointer;
        }

        [id] {
            scroll-margin-top: 100px;
        }

        .container {
            max-width: 1220px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 9px;
            padding: 14px 32px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 15px;
            line-height: 1.4;
            transition: var(--transition);
            cursor: pointer;
            border: 1.5px solid transparent;
        }

        .btn-primary {
            background: var(--secondary);
            color: var(--dark);
            box-shadow: 0 6px 18px rgba(200, 161, 90, 0.35);
        }

        .btn-primary:hover {
            background: #B78C4B;
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(200, 161, 90, 0.45);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(200, 161, 90, 0.3);
        }

        .btn-primary:focus-visible,
        .btn-outline:focus-visible {
            outline: 3px solid rgba(200, 161, 90, 0.5);
            outline-offset: 2px;
        }

        .btn-outline {
            border-color: rgba(255, 255, 255, 0.9);
            color: #fff;
        }

        .btn-outline:hover {
            background: #fff;
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.25);
        }

        .badge {
            display: inline-flex;
            align-items: center;
            background: var(--primary-bg);
            color: var(--primary);
            font-size: 12.5px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 999px;
            line-height: 1.4;
        }

        .badge.gold {
            background: rgba(200, 161, 90, 0.16);
            color: var(--secondary-dark);
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.9);
            -webkit-backdrop-filter: blur(16px);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            height: 82px;
            transition: box-shadow 0.35s ease, background 0.35s ease;
        }

        .site-header.scrolled {
            box-shadow: 0 6px 24px rgba(19, 34, 49, 0.08);
            background: rgba(255, 255, 255, 0.96);
        }

        .header-inner {
            height: 82px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            position: relative;
        }

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

        .nav-left {
            justify-content: flex-end;
        }

        .nav-right {
            justify-content: flex-start;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 18px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            white-space: nowrap;
            transition: var(--transition);
        }

        .nav-link i {
            color: var(--text-weak);
            font-size: 14px;
            transition: var(--transition);
        }

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

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

        .nav-link.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 18px rgba(22, 40, 60, 0.25);
        }

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

        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 44px;
            height: 44px;
            padding: 10px;
            border-radius: 12px;
            background: var(--primary-bg);
            transition: var(--transition);
        }

        .nav-toggle:hover {
            background: #d9e2eb;
        }

        .nav-toggle-bar {
            width: 22px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            margin: 0 auto;
            transition: var(--transition);
        }

        .nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            margin: 0 8px;
        }

        .logo-icon {
            width: 45px;
            height: 45px;
            border-radius: 13px;
            background: linear-gradient(135deg, var(--primary), #2E4E70);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 17px;
            letter-spacing: 1px;
            box-shadow: 0 6px 18px rgba(22, 40, 60, 0.28);
        }

        .logo-text {
            font-size: 21px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.4px;
            line-height: 1.25;
            white-space: nowrap;
        }

        .logo-text strong {
            color: var(--secondary-dark);
            font-weight: 700;
        }

        .mobile-nav {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 20px 40px rgba(19, 34, 49, 0.14);
            flex-direction: column;
            padding: 12px 16px;
            gap: 4px;
            z-index: 999;
        }

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

        .mobile-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 14px 16px;
            border-radius: 12px;
            font-weight: 500;
            color: var(--text);
            font-size: 15.5px;
        }

        .mobile-nav a i {
            width: 20px;
            text-align: center;
            color: var(--text-weak);
        }

        .mobile-nav a:hover {
            background: var(--primary-bg);
            color: var(--primary);
        }

        .mobile-nav a.active {
            background: var(--primary);
            color: #fff;
        }

        .mobile-nav a.active i {
            color: var(--secondary);
        }

        .page-hero {
            position: relative;
            padding: 108px 0 132px;
            background-size: cover;
            background-position: center;
            background-color: var(--dark);
            text-align: center;
            color: #fff;
            overflow: hidden;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 18, 30, 0.82), rgba(22, 40, 60, 0.72));
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 780px;
            margin: 0 auto;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 13.5px;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 22px;
        }

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

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

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

        .breadcrumb span {
            color: var(--secondary);
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 3px;
            color: var(--secondary);
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.16);
            padding: 7px 20px;
            border-radius: 999px;
            margin-bottom: 22px;
        }

        .page-hero h1 {
            font-size: clamp(36px, 5vw, 52px);
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            letter-spacing: 1px;
        }

        .page-hero p {
            max-width: 650px;
            margin: 20px auto 0;
            color: rgba(255, 255, 255, 0.85);
            font-size: 16.5px;
        }

        .hero-actions {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 14px;
            margin-top: 32px;
        }

        .hero-search {
            margin-top: 36px;
            max-width: 520px;
            margin-left: auto;
            margin-right: auto;
        }

        .search-box {
            display: flex;
            align-items: center;
            background: #fff;
            border-radius: 999px;
            padding: 6px 8px 6px 22px;
            box-shadow: 0 12px 34px rgba(0, 0, 0, 0.22);
            border: 1.5px solid transparent;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }

        .search-box:focus-within {
            border-color: var(--secondary);
            box-shadow: 0 14px 38px rgba(0, 0, 0, 0.28);
        }

        .search-box input {
            flex: 1;
            padding: 12px 0;
            font-size: 15px;
            color: var(--text);
            background: transparent;
        }

        .search-box input::placeholder {
            color: #9aa1ab;
        }

        .search-box button {
            width: 46px;
            height: 46px;
            border-radius: 50%;
            background: var(--secondary);
            color: var(--dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            transition: var(--transition);
            flex-shrink: 0;
        }

        .search-box button:hover {
            background: #B78C4B;
            transform: scale(1.04);
        }

        .section-block {
            padding: 92px 0;
        }

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

        .section-block.dark {
            background: radial-gradient(1100px 420px at 82% -8%, rgba(200, 161, 90, 0.16), transparent 60%),
                radial-gradient(800px 420px at 8% 110%, rgba(42, 74, 110, 0.55), transparent 70%),
                var(--primary);
            color: #fff;
        }

        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 52px;
        }

        .section-overline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 3px;
            color: var(--secondary-dark);
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .section-block.dark .section-overline {
            color: var(--secondary);
        }

        .section-head h2 {
            font-size: clamp(28px, 3.6vw, 38px);
            color: var(--primary);
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: 0.5px;
        }

        .section-block.dark .section-head h2 {
            color: #fff;
        }

        .section-head p {
            margin-top: 14px;
            color: var(--text-weak);
            font-size: 16px;
        }

        .section-block.dark .section-head p {
            color: rgba(255, 255, 255, 0.75);
        }

        .grid-x > .cell {
            margin-bottom: 24px;
        }

        .category-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 30px 26px;
            height: 100%;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

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

        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(200, 161, 90, 0.4);
        }

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

        .cat-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: var(--primary-bg);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 20px;
            transition: var(--transition);
        }

        .category-card:hover .cat-icon {
            background: var(--secondary);
            color: var(--dark);
        }

        .category-card h3 {
            font-size: 20px;
            color: var(--primary);
            font-weight: 700;
            margin-bottom: 10px;
        }

        .category-card p {
            font-size: 14.5px;
            color: var(--text-weak);
            line-height: 1.7;
        }

        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            margin-top: 18px;
            color: var(--secondary-dark);
            font-weight: 600;
            font-size: 14px;
        }

        .card-link i {
            transition: transform 0.3s ease;
        }

        .card-link:hover {
            color: var(--primary);
            gap: 10px;
        }

        .feature-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            min-height: 400px;
            display: flex;
            align-items: flex-end;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }

        .feature-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }

        .feature-card>img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

        .feature-card:hover>img {
            transform: scale(1.04);
        }

        .feature-card::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 18, 30, 0) 32%, rgba(10, 18, 30, 0.88) 100%);
        }

        .feature-body {
            position: relative;
            z-index: 2;
            padding: 32px 30px;
            width: 100%;
        }

        .feature-body h3 {
            font-size: 23px;
            color: #fff;
            font-weight: 700;
            margin: 14px 0 10px;
            line-height: 1.35;
        }

        .feature-body p {
            color: rgba(255, 255, 255, 0.82);
            font-size: 14.5px;
        }

        .feature-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-top: 16px;
            color: var(--secondary);
            font-weight: 600;
            font-size: 14px;
        }

        .feature-link:hover {
            gap: 13px;
            color: #fff;
        }

        .rank-list {
            max-width: 860px;
            margin: 0 auto;
        }

        .rank-item {
            display: flex;
            align-items: center;
            gap: 22px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 22px 26px;
            margin-bottom: 14px;
            transition: var(--transition);
        }

        .rank-item:hover {
            transform: translateX(6px);
            box-shadow: var(--shadow);
            border-color: rgba(200, 161, 90, 0.4);
        }

        .rank-num {
            font-size: 26px;
            font-weight: 800;
            color: var(--secondary-dark);
            width: 56px;
            height: 56px;
            border-radius: 15px;
            background: rgba(200, 161, 90, 0.13);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .rank-info {
            flex: 1;
            min-width: 0;
        }

        .rank-info h4 {
            font-size: 17.5px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 5px;
            line-height: 1.4;
        }

        .rank-info p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.6;
        }

        .rank-meta {
            display: flex;
            align-items: center;
            gap: 7px;
            font-size: 13px;
            color: var(--text-weak);
            flex-shrink: 0;
            white-space: nowrap;
        }

        .rank-meta i {
            color: var(--accent);
        }

        .stats-section {
            position: relative;
            padding: 92px 0;
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            background-color: var(--dark);
        }

        .stats-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 18, 30, 0.92), rgba(22, 40, 60, 0.84));
        }

        .stats-inner {
            position: relative;
            z-index: 2;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 8px;
        }

        .stat-item {
            text-align: center;
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid rgba(255, 255, 255, 0.13);
            border-radius: var(--radius-lg);
            padding: 38px 20px;
            transition: var(--transition);
            backdrop-filter: blur(4px);
        }

        .stat-item:hover {
            background: rgba(255, 255, 255, 0.12);
            transform: translateY(-4px);
        }

        .stat-item .num {
            font-size: 42px;
            font-weight: 800;
            color: var(--secondary);
            line-height: 1.2;
        }

        .stat-item .label {
            color: rgba(255, 255, 255, 0.78);
            margin-top: 10px;
            font-size: 14.5px;
            letter-spacing: 1px;
        }

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

        .step-item {
            text-align: center;
            padding: 24px 16px;
            position: relative;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            transition: var(--transition);
        }

        .step-item:hover {
            box-shadow: var(--shadow);
            transform: translateY(-5px);
        }

        .step-num {
            width: 64px;
            height: 64px;
            margin: 0 auto 20px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), #2E4E70);
            color: #fff;
            font-size: 21px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 12px 26px rgba(22, 40, 60, 0.28);
        }

        .step-item h4 {
            font-size: 18px;
            color: var(--primary);
            font-weight: 700;
            margin-bottom: 10px;
        }

        .step-item p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.7;
        }

        .latest-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

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

        .latest-img {
            display: block;
            overflow: hidden;
            position: relative;
        }

        .latest-img img {
            width: 100%;
            height: 210px;
            object-fit: cover;
            transition: transform 0.55s ease;
        }

        .latest-card:hover .latest-img img {
            transform: scale(1.05);
        }

        .latest-img::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 18, 30, 0) 50%, rgba(10, 18, 30, 0.35) 100%);
            opacity: 0;
            transition: var(--transition);
        }

        .latest-card:hover .latest-img::after {
            opacity: 1;
        }

        .card-body {
            padding: 24px 24px 26px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .card-body h3 {
            font-size: 18.5px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.45;
            margin-bottom: 10px;
        }

        .card-body h3 a:hover {
            color: var(--secondary-dark);
        }

        .card-body p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.7;
            flex: 1;
        }

        .card-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-top: 18px;
            padding-top: 14px;
            border-top: 1px solid var(--border);
        }

        .card-meta time {
            font-size: 13px;
            color: #9aa1ab;
        }

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

        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            margin-bottom: 14px;
            transition: var(--transition);
        }

        .faq-item.open {
            box-shadow: var(--shadow);
            border-color: rgba(200, 161, 90, 0.4);
        }

        .faq-q {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 20px;
            padding: 22px 26px;
            font-weight: 600;
            font-size: 16px;
            color: var(--primary);
            cursor: pointer;
            transition: background 0.3s ease;
        }

        .faq-q:hover {
            background: #faf9f5;
        }

        .faq-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--primary-bg);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            flex-shrink: 0;
            transition: transform 0.35s ease, background 0.3s ease, color 0.3s ease;
        }

        .faq-item.open .faq-icon {
            transform: rotate(135deg);
            background: var(--secondary);
            color: var(--dark);
        }

        .faq-a {
            display: none;
            padding: 0 26px 24px;
            color: var(--text-weak);
            font-size: 15px;
            line-height: 1.8;
        }

        .faq-item.open .faq-a {
            display: block;
        }

        .cta-section {
            position: relative;
            padding: 88px 0;
            background-size: cover;
            background-position: center;
            background-color: var(--dark);
        }

        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(10, 18, 30, 0.94), rgba(22, 40, 60, 0.82));
        }

        .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            color: #fff;
            max-width: 760px;
            margin: 0 auto;
        }

        .cta-inner h2 {
            font-size: clamp(28px, 3.6vw, 38px);
            font-weight: 800;
            color: #fff;
            line-height: 1.35;
        }

        .cta-inner p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 16px;
            margin-top: 14px;
        }

        .cta-actions {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 14px;
            margin-top: 32px;
        }

        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.78);
            padding: 72px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.3fr 1fr 1fr;
            gap: 52px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .brand-logo.white-logo {
            display: inline-flex;
        }

        .footer-brand p {
            margin-top: 22px;
            font-size: 14.5px;
            color: rgba(255, 255, 255, 0.58);
            max-width: 330px;
            line-height: 1.8;
        }

        .footer-links h3 {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 20px;
            letter-spacing: 1px;
        }

        .footer-links ul li {
            margin-bottom: 11px;
        }

        .footer-links ul a {
            color: rgba(255, 255, 255, 0.58);
            font-size: 14.5px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }

        .footer-links ul a i {
            font-size: 12px;
            color: var(--secondary);
            transition: transform 0.3s ease;
        }

        .footer-links ul a:hover {
            color: var(--secondary);
        }

        .footer-links ul a:hover i {
            transform: translateX(3px);
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            padding: 26px 0;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.45);
        }

        .footer-social {
            display: flex;
            gap: 8px;
        }

        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.18);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.65);
            font-size: 15px;
            transition: var(--transition);
        }

        .footer-social a:hover {
            background: var(--secondary);
            border-color: var(--secondary);
            color: var(--dark);
            transform: translateY(-3px);
        }

        .footer-social a:focus-visible,
        .nav-link:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 2px;
        }

        @media (max-width: 1023px) {
            .header-nav {
                display: none;
            }

            .nav-toggle {
                display: flex;
                order: 1;
            }

            .header-inner {
                justify-content: space-between;
                height: 70px;
            }

            .brand-logo {
                order: 2;
                margin: 0;
                position: absolute;
                left: 50%;
                transform: translateX(-50%);
            }

            .site-header {
                height: 70px;
            }

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

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

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

        @media (max-width: 767px) {
            .container {
                padding: 0 18px;
            }

            .page-hero {
                padding: 76px 0 96px;
            }

            .section-block {
                padding: 64px 0;
            }

            .stats-section {
                padding: 64px 0;
                background-attachment: scroll;
            }

            .cta-section {
                padding: 64px 0;
            }

            .rank-item {
                flex-wrap: wrap;
                gap: 14px;
                padding: 18px 18px;
            }

            .rank-info {
                flex: 1 1 100%;
                order: 2;
            }

            .rank-num {
                width: 46px;
                height: 46px;
                font-size: 20px;
                border-radius: 12px;
            }

            .rank-meta {
                flex-shrink: 1;
                white-space: normal;
                font-size: 12.5px;
            }

            .feature-card {
                min-height: 340px;
            }

            .grid-x > .cell {
                margin-bottom: 18px;
            }
        }

        @media (max-width: 520px) {
            .logo-text {
                font-size: 18px;
            }

            .logo-icon {
                width: 40px;
                height: 40px;
                font-size: 15px;
            }

            .page-hero h1 {
                font-size: 32px;
            }

            .page-hero p {
                font-size: 15px;
            }

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

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

            .search-box {
                padding-left: 16px;
            }

            .search-box input {
                padding: 10px 0;
                font-size: 14px;
            }

            .stats-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .stat-item {
                padding: 28px 16px;
            }

            .stat-item .num {
                font-size: 34px;
            }

            .steps-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

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

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

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

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

            .faq-q {
                padding: 18px 18px;
                font-size: 15px;
            }

            .faq-a {
                padding: 0 18px 20px;
                font-size: 14.5px;
            }

            .card-body {
                padding: 20px 18px 22px;
            }

            .feature-body {
                padding: 24px 20px;
            }

            .feature-body h3 {
                font-size: 20px;
            }
        }