/* roulang page: index */
:root {
  --primary: #0E3B2E;
  --primary-dark: #0A2A20;
  --accent: #C9A063;
  --accent-hover: #D1AF7A;
  --bg: #F7F4EF;
  --bg-white: #FFFFFF;
  --bg-light: #EDF2EE;
  --text: #1A1D1C;
  --text-secondary: #4E5B55;
  --text-aux: #8A948E;
  --text-white: #F0EBE2;
  --border: #DFE5DF;
  --success: #2E7D5B;
  --warning: #C9A063;
  --error: #B3462B;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow-sm: 0 1px 2px rgba(23, 32, 28, 0.04);
  --shadow-md: 0 8px 24px rgba(23, 32, 28, 0.07);
  --transition: 0.25s ease;
  --font-serif: 'Noto Serif SC', 'Source Han Serif SC', 'Songti SC', serif;
  --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-num: 'Inter', 'Roboto', sans-serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* Topbar */
.topbar {
  background: var(--primary-dark);
  height: 36px;
  display: flex;
  align-items: center;
  color: rgba(255,255,255,0.75);
  font-size: 13px;
}
.topbar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}
.topbar-links { display: flex; gap: 24px; }
.topbar-links a { color: rgba(255,255,255,0.75); transition: color var(--transition); }
.topbar-links a:hover { color: var(--accent); }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 72px;
  background: rgba(247,244,239,0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition);
}
.site-header.scrolled {
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}
.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo-icon { flex-shrink: 0; }
.logo-text {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--primary);
}
.logo-text em {
  font-style: normal;
  color: var(--accent);
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-link {
  display: inline-block;
  padding: 8px 16px;
  font-size: 15px;
  color: var(--text-secondary);
  border-radius: 6px;
  position: relative;
  transition: color var(--transition), background var(--transition);
}
.nav-link:hover { color: var(--primary); background: rgba(14,59,46,0.04); }
.nav-link.active { color: var(--primary); font-weight: 500; }
.nav-link.active::after {
  content: '';
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 1px;
}
.nav-cta {
  height: 40px;
  padding: 0 20px;
  font-size: 14px;
  border: 1px solid var(--accent);
  color: var(--primary);
  border-radius: 6px;
  background: transparent;
  display: inline-flex;
  align-items: center;
  transition: all var(--transition);
}
.nav-cta:hover { background: var(--accent); border-color: var(--accent); color: #1A1D1C; }
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 8px;
}
.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--primary);
  border-radius: 1px;
  transition: transform var(--transition), opacity var(--transition);
}
.menu-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Button */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 32px;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 500;
  border: 1px solid transparent;
  transition: all var(--transition);
  cursor: pointer;
  line-height: 1;
}
.btn-gold { background: var(--accent); border-color: var(--accent); color: #1A1D1C; }
.btn-gold:hover { background: var(--accent-hover); border-color: var(--accent-hover); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(201,160,99,0.25); }
.btn-ghost { background: transparent; border-color: rgba(255,255,255,0.6); color: #fff; }
.btn-ghost:hover { border-color: #fff; background: rgba(255,255,255,0.06); transform: translateY(-1px); }
.btn-dark { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-dark:hover { background: var(--primary-dark); border-color: var(--primary-dark); transform: translateY(-1px); }
.btn-outline { background: transparent; border-color: var(--accent); color: var(--primary); }
.btn-outline:hover { background: var(--accent); color: #1A1D1C; }
.btn:active { transform: translateY(1px); }

/* Hero */
.hero {
  background: linear-gradient(135deg, #0E3B2E 0%, #0A2A20 100%);
  position: relative;
  overflow: hidden;
  padding: 96px 0;
}
.hero::before {
  content: '';
  position: absolute;
  top: 60px;
  left: 50%;
  transform: translateX(-50%);
  width: 1px;
  height: 120px;
  background: linear-gradient(to bottom, transparent, rgba(201,160,99,0.5));
}
.hero-inner {
  display: grid;
  grid-template-columns: 7fr 5fr;
  gap: 48px;
  align-items: center;
}
.hero-badge {
  display: inline-block;
  padding: 4px 14px;
  border: 1px solid rgba(201,160,99,0.5);
  border-radius: 4px;
  color: var(--accent);
  font-size: 13px;
  letter-spacing: 2px;
  margin-bottom: 24px;
  background: rgba(201,160,99,0.08);
}
.hero-text h1 {
  font-family: var(--font-serif);
  font-size: 52px;
  line-height: 1.3;
  font-weight: 600;
  color: #fff;
  margin-bottom: 0.55em;
}
.hero-subtitle {
  font-size: 17px;
  line-height: 1.8;
  color: rgba(255,255,255,0.75);
  margin-bottom: 32px;
  max-width: 480px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-visual { position: relative; }
.browser-frame {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.2);
}
.browser-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  background: rgba(255,255,255,0.06);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.browser-bar .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,0.3);
}
.browser-url {
  flex: 1;
  text-align: center;
  font-size: 12px;
  color: rgba(255,255,255,0.6);
  background: rgba(0,0,0,0.2);
  border-radius: 4px;
  padding: 2px 8px;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.browser-frame img {
  width: 100%;
  height: auto;
  min-height: 320px;
  object-fit: cover;
}

/* Section */
.section { padding: 96px 0; }
.section-head {
  margin-bottom: 48px;
}
.section-head h2 {
  font-family: var(--font-sans);
  font-size: 34px;
  font-weight: 700;
  color: var(--text);
  position: relative;
  padding-left: 20px;
  margin-bottom: 12px;
}
.section-head h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 24px;
  background: var(--accent);
  border-radius: 2px;
}
.section-head p {
  color: var(--text-secondary);
  font-size: 16px;
  max-width: 560px;
}

/* Features Carousel */
.features-section { background: var(--bg-white); border-bottom: 1px solid var(--border); }
.carousel-wrapper { position: relative; }
.carousel-viewport {
  overflow-x: auto;
  display: flex;
  gap: 24px;
  padding: 8px 4px 24px;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}
.carousel-viewport::-webkit-scrollbar { display: none; }
.carousel-card {
  flex: 0 0 380px;
  scroll-snap-align: start;
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  box-shadow: var(--shadow-sm);
}
.carousel-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent);
}
.carousel-card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}
.carousel-card-body { padding: 24px; }
.carousel-card-body h3 {
  font-size: 18px;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 8px;
}
.carousel-card-body p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}
.carousel-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  margin-top: 24px;
}
.carousel-arrow {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg-white);
  color: var(--text-secondary);
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}
.carousel-arrow:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(201,160,99,0.05);
}
.carousel-dots { display: flex; gap: 8px; }
.carousel-dot {
  width: 6px;
  height: 6px;
  border-radius: 3px;
  background: var(--border);
  transition: all var(--transition);
}
.carousel-dot.active {
  width: 20px;
  background: var(--accent);
}

/* Specs */
.specs-section { background: var(--bg); }
.specs-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 64px;
  align-items: center;
}
.specs-intro h2 {
  font-family: var(--font-sans);
  font-size: 34px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 16px;
}
.specs-intro p {
  color: var(--text-secondary);
  margin-bottom: 24px;
  max-width: 420px;
}
.specs-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
  font-size: 15px;
  color: var(--text-secondary);
}
.specs-list li::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}
.specs-table-wrap {
  background: var(--bg-white);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.specs-table {
  width: 100%;
  border-collapse: collapse;
}
.specs-table th {
  background: var(--primary);
  color: var(--text-white);
  padding: 16px 20px;
  text-align: left;
  font-weight: 500;
  font-size: 15px;
}
.specs-table td {
  padding: 14px 20px;
  font-size: 14px;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
}
.specs-table tr:nth-child(even) td { background: var(--bg-light); }
.specs-table tr:last-child td { border-bottom: none; }
.specs-table td:first-child {
  font-weight: 500;
  color: var(--text);
  white-space: nowrap;
}

/* Reviews */
.reviews-section { background: var(--bg-light); }
.reviews-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}
.review-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  border: 1px solid transparent;
  transition: transform var(--transition), box-shadow var(--transition);
}
.review-card:nth-child(even) { transform: translateY(20px); }
.review-card:hover { box-shadow: var(--shadow-md); }
.review-quote {
  font-family: var(--font-serif);
  font-size: 40px;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 16px;
}
.review-text {
  font-size: 17px;
  line-height: 1.8;
  color: var(--text);
  margin-bottom: 20px;
}
.review-stars { color: var(--accent); font-size: 18px; letter-spacing: 2px; margin-bottom: 12px; }
.review-author {
  font-size: 14px;
  color: var(--text-aux);
  font-weight: 500;
}

/* Download */
.download-section {
  background: var(--primary-dark);
  position: relative;
  padding: 96px 0;
  text-align: center;
}
.download-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--accent), transparent);
}
.download-section h2 {
  font-family: var(--font-serif);
  font-size: 36px;
  color: #fff;
  margin-bottom: 16px;
}
.download-info {
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
  color: rgba(255,255,255,0.65);
  font-size: 14px;
  margin-bottom: 32px;
}
.download-info span { letter-spacing: 0.3px; }
.download-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.download-tip {
  font-size: 13px;
  color: rgba(255,255,255,0.7);
}

/* News */
.news-section { background: var(--bg); }
.news-list { max-width: 100%; }
.news-item {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}
.news-item:hover { background: #F2F4F0; }
.news-date {
  flex-shrink: 0;
  width: 64px;
  height: 64px;
  background: var(--primary);
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #fff;
  transition: background var(--transition);
}
.news-item:hover .news-date { background: var(--accent); }
.news-day {
  font-size: 22px;
  font-weight: 700;
  font-family: var(--font-num);
  line-height: 1.2;
}
.news-month { font-size: 12px; color: rgba(255,255,255,0.8); }
.news-info { flex: 1; min-width: 0; }
.news-info h3 {
  font-size: 18px;
  color: var(--text);
  margin-bottom: 4px;
  transition: color var(--transition);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.news-item:hover .news-info h3 { color: var(--accent); }
.news-info p {
  font-size: 14px;
  color: var(--text-aux);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.news-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
  flex-shrink: 0;
}
.news-cat {
  font-size: 13px;
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 4px;
  padding: 2px 10px;
  white-space: nowrap;
}
.news-time { font-size: 13px; color: var(--text-aux); }
.news-empty {
  border: 1px dashed var(--border);
  border-radius: 8px;
  padding: 48px;
  text-align: center;
  color: var(--text-aux);
  font-size: 14px;
  background: var(--bg-white);
}

/* FAQ */
.faq-section { background: var(--bg-white); }
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-item-header {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px 0;
  cursor: pointer;
  transition: color var(--transition);
}
.faq-item-header:hover { color: var(--accent); }
.faq-num {
  font-family: var(--font-num);
  font-size: 16px;
  color: var(--accent);
  width: 36px;
  flex-shrink: 0;
  font-weight: 600;
}
.faq-question {
  font-size: 17px;
  font-weight: 500;
  color: var(--text);
  flex: 1;
}
.faq-icon {
  width: 20px;
  height: 20px;
  position: relative;
  flex-shrink: 0;
}
.faq-icon::before,
.faq-icon::after {
  content: '';
  position: absolute;
  background: var(--text-secondary);
  border-radius: 1px;
  transition: all var(--transition);
}
.faq-icon::before {
  width: 14px;
  height: 2px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.faq-icon::after {
  width: 2px;
  height: 14px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.faq-item.active .faq-icon::after { transform: translate(-50%, -50%) rotate(90deg); opacity: 0; }
.faq-item.active .faq-icon::before { background: var(--accent); }
.faq-item-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.faq-item-content-inner {
  padding: 0 0 20px 56px;
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* CTA */
.cta-section {
  background: var(--primary);
  padding: 80px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-section::after {
  content: '';
  position: absolute;
  right: -60px;
  top: -60px;
  width: 200px;
  height: 200px;
  border: 1px solid rgba(201,160,99,0.2);
  border-radius: 50%;
}
.cta-section h2 {
  font-family: var(--font-serif);
  font-size: 36px;
  color: #fff;
  margin-bottom: 16px;
}
.cta-section p {
  color: rgba(255,255,255,0.7);
  font-size: 16px;
  max-width: 480px;
  margin: 0 auto 32px;
}

/* Footer */
.site-footer {
  background: var(--primary-dark);
  color: rgba(255,255,255,0.7);
  padding: 64px 0 0;
  position: relative;
}
.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--accent), transparent);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-brand .logo-text { color: #fff; }
.footer-brand p {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  margin-top: 16px;
  line-height: 1.7;
  max-width: 260px;
}
.footer-col h4 {
  font-size: 16px;
  font-weight: 500;
  color: #fff;
  margin-bottom: 16px;
}
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul a {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  transition: color var(--transition);
}
.footer-col ul a:hover { color: var(--accent); }
.footer-contact p {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  margin-bottom: 8px;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}

/* Responsive */
@media (max-width: 1024px) {
  .hero { padding: 64px 0; }
  .hero-text h1 { font-size: 40px; }
  .specs-grid { grid-template-columns: 1fr; gap: 32px; }
  .carousel-card { flex-basis: 300px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 768px) {
  .topbar-links { display: none; }
  .main-nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--bg-white);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.06);
    animation: slideDown 0.25s ease;
  }
  .main-nav.open { display: flex; }
  .nav-link { padding: 12px 16px; }
  .nav-link.active::after { display: none; }
  .nav-cta { display: none; }
  .menu-toggle { display: flex; }
  .hero-inner { grid-template-columns: 1fr; }
  .hero-text h1 { font-size: 32px; }
  .section { padding: 64px 0; }
  .section-head h2 { font-size: 24px; }
  .specs-intro h2 { font-size: 24px; }
  .reviews-grid { grid-template-columns: 1fr; }
  .review-card:nth-child(even) { transform: none; }
  .news-item { flex-wrap: wrap; gap: 12px; }
  .news-meta { flex-direction: row; align-items: center; width: 100%; justify-content: flex-start; }
  .footer-grid { grid-template-columns: 1fr; }
  .download-section h2 { font-size: 28px; }
  .cta-section h2 { font-size: 28px; }
}
@media (max-width: 576px) {
  .container { padding: 0 16px; }
  .carousel-card { flex-basis: 85%; }
  .news-info h3 { white-space: normal; }
  .news-info p { white-space: normal; }
  .footer-grid { grid-template-columns: 1fr; }
  .faq-item-content-inner { padding-left: 20px; }
}
@media (max-width: 375px) {
  .hero-text h1 { font-size: 28px; }
  .btn { padding: 0 20px; }
  .specs-table td, .specs-table th { padding: 10px 12px; }
}
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* roulang page: article */
:root {
  --primary: #0E3B2E;
  --primary-dark: #0A2A20;
  --accent: #C9A063;
  --accent-hover: #D1AF7A;
  --bg: #F7F4EF;
  --bg-card: #FFFFFF;
  --bg-deep: #0B2A20;
  --bg-muted: #EDF2EE;
  --text: #1A1D1C;
  --text-secondary: #4E5B55;
  --text-weak: #8A948E;
  --text-invert: #F0EBE2;
  --text-muted: #B9BDB9;
  --border: #DFE5DF;
  --border-hover: #C9A063;
  --success: #2E7D5B;
  --warning: #C9A063;
  --error: #B3462B;
  --radius: 6px;
  --radius-lg: 12px;
  --shadow: 0 1px 2px rgba(23,32,28,0.04);
  --shadow-hover: 0 8px 24px rgba(23,32,28,0.07);
  --transition: 0.25s ease;
  --container: 1200px;
  --font-serif: 'Noto Serif SC','Source Han Serif SC','Songti SC',serif;
  --font-sans: 'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --font-num: 'Inter','Roboto',sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

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

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

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

ul, ol {
  list-style: none;
}

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

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

/* ===== Topbar ===== */
.topbar {
  height: 36px;
  background: var(--primary-dark);
  display: flex;
  align-items: center;
  font-size: 13px;
  color: rgba(255,255,255,0.85);
}

.topbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.topbar-links {
  display: flex;
  gap: 24px;
}

.topbar-links a {
  color: rgba(255,255,255,0.75);
  transition: color var(--transition);
}

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

/* ===== Nav ===== */
.main-nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: 72px;
  background: rgba(247,244,239,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition);
}

.main-nav.scrolled {
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

.main-nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

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

.logo svg {
  width: 30px;
  height: 30px;
}

.logo-text {
  font-size: 22px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.logo-text em {
  font-style: normal;
  color: var(--accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-link {
  font-size: 15px;
  color: var(--text-secondary);
  position: relative;
  padding: 6px 0;
  white-space: nowrap;
  transition: color var(--transition);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--transition);
}

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

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.btn-download {
  height: 40px;
  padding: 0 20px;
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-download:hover {
  background: var(--accent);
  color: #1A1D1C;
  box-shadow: 0 0 0 3px rgba(201,160,99,0.15);
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  cursor: pointer;
  position: relative;
  z-index: 1001;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--primary);
  margin: 5px auto;
  transition: all var(--transition);
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ===== Breadcrumb ===== */
.breadcrumb-bar {
  height: 56px;
  background: var(--bg-muted);
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--border);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-weak);
}

.breadcrumb a {
  color: var(--primary);
  transition: color var(--transition);
}

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

.breadcrumb-sep {
  color: var(--text-muted);
  font-size: 12px;
}

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

/* ===== Article Main ===== */
.article-main {
  padding-bottom: 64px;
}

.article-container {
  max-width: 760px;
  padding-top: 48px;
}

.article-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 48px 56px;
  margin-top: 32px;
}

.article-header {
  margin-bottom: 36px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 28px;
}

.article-title {
  font-family: var(--font-serif);
  font-size: 34px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--text);
  margin-bottom: 18px;
  letter-spacing: 0.01em;
}

.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--text-weak);
  gap: 8px;
}

.article-meta .dot {
  color: var(--text-muted);
}

.article-meta i {
  margin-right: 4px;
  color: var(--accent);
  font-size: 12px;
}

/* ===== Article Content ===== */
.article-content {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text);
}

.article-content p {
  margin-bottom: 1.5em;
}

.article-content h2 {
  font-family: var(--font-serif);
  font-size: 26px;
  font-weight: 600;
  line-height: 1.4;
  border-left: 3px solid var(--accent);
  padding-left: 16px;
  margin: 2.5em 0 0.8em;
  color: var(--text);
}

.article-content h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text);
  margin: 2em 0 0.6em;
}

.article-content ul,
.article-content ol {
  margin: 1.5em 0;
  padding-left: 20px;
}

.article-content ul li,
.article-content ol li {
  margin-bottom: 0.6em;
  position: relative;
}

.article-content ul li::before {
  content: '';
  position: absolute;
  left: -14px;
  top: 0.7em;
  width: 5px;
  height: 5px;
  background: var(--accent);
  border-radius: 50%;
}

.article-content blockquote {
  border-left: 2px solid var(--accent);
  background: var(--bg-muted);
  padding: 16px 24px;
  margin: 2em 0;
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  color: var(--text-secondary);
  font-style: normal;
}

.article-content blockquote p:last-child {
  margin-bottom: 0;
}

.article-content img {
  max-width: 100%;
  border-radius: var(--radius-lg);
  margin: 2em 0;
}

.article-content a {
  color: var(--primary);
  border-bottom: 1px solid var(--accent);
}

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

.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 2em 0;
  font-size: 14px;
}

.article-content th {
  background: var(--primary);
  color: #fff;
  padding: 12px 16px;
  text-align: left;
  font-weight: 500;
}

.article-content td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-card);
}

.article-content tr:nth-child(even) td {
  background: var(--bg-muted);
}

.not-found {
  text-align: center;
  padding: 60px 20px;
}

.not-found p {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.not-found a {
  display: inline-flex;
  height: 44px;
  padding: 0 28px;
  background: var(--primary);
  color: #fff;
  border-radius: var(--radius);
  font-size: 15px;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}

.not-found a:hover {
  background: var(--accent);
  color: #1A1D1C;
}

/* ===== Related ===== */
.related-section {
  padding: 80px 0 64px;
  background: var(--bg-card);
  border-top: 1px solid var(--border);
}

.section-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 40px;
}

.section-header h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text);
  white-space: nowrap;
}

.section-line {
  flex: 1;
  height: 1px;
  background: var(--border);
}

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

.related-card {
  display: flex;
  gap: 16px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px;
  transition: all var(--transition);
  overflow: hidden;
}

.related-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
  border-color: var(--border-hover);
}

.related-thumb {
  width: 96px;
  height: 72px;
  border-radius: 8px;
  overflow: hidden;
  flex-shrink: 0;
}

.related-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s cubic-bezier(0.22,1,0.36,1);
}

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

.related-body h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.4;
  margin-bottom: 6px;
  transition: color var(--transition);
}

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

.related-body p {
  font-size: 13px;
  color: var(--text-weak);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ===== FAQ ===== */
.faq-section {
  padding: 80px 0;
  background: var(--bg);
}

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

.faq-section .section-header {
  justify-content: center;
}

.faq-section .section-header h2 {
  text-align: center;
  font-family: var(--font-serif);
  font-size: 28px;
}

.faq-list {
  border-top: 1px solid var(--border);
}

.accordion-item {
  border-bottom: 1px solid var(--border);
}

.accordion-header {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 0;
  cursor: pointer;
  transition: all var(--transition);
  user-select: none;
}

.accordion-header:hover {
  color: var(--primary);
}

.accordion-num {
  font-family: var(--font-num);
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  width: 32px;
  flex-shrink: 0;
}

.accordion-title {
  flex: 1;
  font-size: 17px;
  font-weight: 500;
  color: var(--text);
  transition: color var(--transition);
}

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

.accordion-icon {
  width: 24px;
  height: 24px;
  position: relative;
  flex-shrink: 0;
}

.accordion-icon::before,
.accordion-icon::after {
  content: '';
  position: absolute;
  background: var(--text-secondary);
  transition: all var(--transition);
}

.accordion-icon::before {
  width: 14px;
  height: 2px;
  top: 11px;
  left: 5px;
}

.accordion-icon::after {
  width: 2px;
  height: 14px;
  top: 5px;
  left: 11px;
}

.accordion-item.active .accordion-icon::after {
  height: 0;
  top: 11px;
}

.accordion-item.active .accordion-icon::before {
  background: var(--accent);
}

.accordion-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.accordion-panel-inner {
  padding: 0 0 20px 48px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-secondary);
}

.accordion-panel-inner p:last-child {
  margin-bottom: 0;
}

/* ===== CTA ===== */
.cta-section {
  background: var(--primary-dark);
  padding: 80px 0;
  position: relative;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--accent);
}

.cta-inner {
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
}

.cta-section h2 {
  font-family: var(--font-serif);
  font-size: 32px;
  color: var(--text-invert);
  margin-bottom: 16px;
  font-weight: 600;
}

.cta-section p {
  font-size: 16px;
  color: rgba(255,255,255,0.65);
  margin-bottom: 36px;
  line-height: 1.8;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 48px;
  padding: 0 32px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
}

.btn-primary {
  background: var(--accent);
  color: #1A1D1C;
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 0 0 4px rgba(201,160,99,0.2);
}

.btn-outline {
  border: 1px solid rgba(255,255,255,0.5);
  color: var(--text-invert);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ===== Footer ===== */
.site-footer {
  background: #071F18;
  color: rgba(255,255,255,0.7);
  padding: 64px 0 0;
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--accent);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  padding-bottom: 48px;
}

.footer-brand .logo {
  margin-bottom: 16px;
}

.footer-brand .logo-text {
  color: #fff;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255,255,255,0.65);
  max-width: 320px;
}

.footer-col h4,
.footer-contact h4 {
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}

.footer-col h4::after,
.footer-contact h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 24px;
  height: 2px;
  background: var(--accent);
}

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

.footer-col ul a,
.footer-contact p {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  transition: color var(--transition);
  line-height: 1.8;
}

.footer-col ul a:hover {
  color: var(--accent);
}

.footer-contact p {
  margin-bottom: 8px;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 24px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .related-list {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  .main-nav {
    height: 64px;
  }

  .nav-links {
    display: none;
    position: fixed;
    top: 100px;
    left: 24px;
    right: 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    box-shadow: var(--shadow-hover);
    z-index: 999;
    transform: translateY(-10px);
    opacity: 0;
    transition: all 0.25s ease;
  }

  .nav-links.open {
    display: flex;
    transform: translateY(0);
    opacity: 1;
  }

  .nav-link {
    padding: 14px 0;
    border-bottom: 1px solid var(--border);
    font-size: 16px;
  }

  .nav-link:last-child {
    border-bottom: none;
  }

  .nav-link::after {
    display: none;
  }

  .nav-toggle {
    display: block;
  }

  .btn-download {
    display: none;
  }

  .topbar-right {
    display: none;
  }

  .topbar .container {
    justify-content: center;
  }

  .article-card {
    padding: 32px 20px;
    margin-top: 16px;
  }

  .article-title {
    font-size: 26px;
  }

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

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

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

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

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

@media (max-width: 576px) {
  .container {
    padding: 0 16px;
  }

  .article-card {
    padding: 24px 16px;
  }

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

  .article-content {
    font-size: 15px;
  }

  .article-content h2 {
    font-size: 22px;
  }

  .related-card {
    flex-direction: column;
  }

  .related-thumb {
    width: 100%;
    height: 140px;
  }

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

@media (max-width: 375px) {
  .article-meta {
    font-size: 12px;
  }

  .accordion-title {
    font-size: 15px;
  }
}

/* roulang page: category1 */
:root {
  --primary: #0E3B2E;
  --primary-dark: #0A2A20;
  --accent: #C9A063;
  --accent-hover: #D1AF7A;
  --bg: #F7F4EF;
  --bg-white: #FFFFFF;
  --bg-green: #EDF2EE;
  --text: #1A1D1C;
  --text-secondary: #4E5B55;
  --text-aux: #8A948E;
  --text-white: #F0EBE2;
  --border: #DFE5DF;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow: 0 1px 2px rgba(23, 32, 28, 0.04);
  --shadow-hover: 0 8px 24px rgba(23, 32, 28, 0.07);
  --transition: 0.25s ease;
  --container: 1200px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Inter', 'Roboto', sans-serif;
  font-size: 16px;
  line-height: 1.75;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  line-height: 1.3;
  font-weight: 700;
}

h1 {
  font-family: 'Noto Serif SC', 'Source Han Serif SC', 'Songti SC', serif;
  font-weight: 600;
}

h2 {
  font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  font-weight: 700;
}

p {
  margin: 0;
}

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

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

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

ul,
ol {
  list-style: none;
}

button {
  font-family: inherit;
  border: none;
  background: none;
  cursor: pointer;
}

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

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 28px;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 500;
  line-height: 1;
  white-space: nowrap;
  transition: background-color var(--transition), border-color var(--transition), color var(--transition), transform 0.15s ease, box-shadow var(--transition);
  border: 1px solid transparent;
}

.btn:active {
  transform: translateY(1px);
}

.btn-gold {
  background: var(--accent);
  color: #1A1D1C;
}

.btn-gold:hover {
  background: var(--accent-hover);
  box-shadow: 0 0 20px rgba(201, 160, 99, 0.18);
}

.btn-outline-light {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.7);
  color: var(--text-white);
}

.btn-outline-light:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-outline {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-sm {
  height: 38px;
  padding: 0 18px;
  font-size: 14px;
}

/* ===== Top Bar ===== */
.top-bar {
  background: var(--primary-dark);
  height: 36px;
  color: rgba(255, 255, 255, 0.85);
  font-size: 13px;
  display: flex;
  align-items: center;
}

.top-bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.top-bar-domain {
  font-family: 'Inter', 'Roboto', sans-serif;
  letter-spacing: 0.02em;
}

.top-bar-links {
  display: flex;
  gap: 28px;
}

.top-bar-links a {
  color: rgba(255, 255, 255, 0.85);
  font-size: 13px;
}

.top-bar-links a:hover {
  color: var(--accent);
}

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(247, 244, 239, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.site-header.is-scrolled {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.header-inner {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

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

.logo svg {
  flex-shrink: 0;
}

.logo-text {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--text);
  white-space: nowrap;
  font-family: 'Noto Sans SC', 'PingFang SC', sans-serif;
}

.logo-text em {
  font-style: normal;
  color: var(--accent);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  justify-content: center;
}

.nav-link {
  position: relative;
  padding: 10px 16px;
  font-size: 15px;
  color: var(--text-secondary);
  border-radius: 4px;
}

.nav-link::after {
  content: '';
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 4px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--transition);
}

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

.nav-link.active {
  color: var(--text);
  font-weight: 500;
}

.nav-link.active::after {
  transform: scaleX(1);
}

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

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg-white);
}

.menu-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

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

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

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

/* ===== Page Hero ===== */
.page-hero {
  background: linear-gradient(180deg, var(--bg-green) 0%, var(--bg) 100%);
  padding: 64px 0;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}

.page-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 1px;
  height: 100%;
  background: linear-gradient(180deg, var(--accent), transparent);
}

.page-hero-inner {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
}

.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-aux);
  margin-bottom: 24px;
}

.breadcrumb a {
  color: var(--text-aux);
}

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

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

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 14px;
  border: 1px solid var(--accent);
  border-radius: 4px;
  color: var(--accent);
  font-size: 13px;
  letter-spacing: 0.05em;
  margin-bottom: 24px;
  background: transparent;
  font-family: 'Noto Sans SC', sans-serif;
}

.page-hero h1 {
  font-size: 40px;
  line-height: 1.3;
  margin-bottom: 0.55em;
  color: var(--text);
  position: relative;
  display: inline-block;
}

.page-hero h1::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: -14px;
  transform: translateX(-50%);
  width: 40px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

.page-hero-sub {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-top: 24px;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

.page-hero-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-top: 40px;
  flex-wrap: wrap;
}

/* ===== Intro Section ===== */
.intro-section {
  padding: 96px 0;
  background: var(--bg);
}

.intro-grid {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 64px;
  align-items: center;
}

.intro-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-hover);
  border: 1px solid var(--border);
  background: var(--bg-white);
}

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

.intro-content h2 {
  font-size: 34px;
  margin-bottom: 24px;
  position: relative;
  padding-left: 20px;
}

.intro-content h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.15em;
  bottom: 0.15em;
  width: 3px;
  background: var(--accent);
  border-radius: 3px;
}

.intro-content p {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: 1.5em;
}

.intro-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 24px;
}

.intro-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.intro-list li svg {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  margin-top: 4px;
}

.intro-list li strong {
  color: var(--text);
  font-weight: 600;
}

/* ===== Quote Bar ===== */
.quote-bar {
  background: var(--bg-green);
  padding: 56px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.quote-bar blockquote {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
  font-family: 'Noto Serif SC', 'Source Han Serif SC', serif;
  font-size: 24px;
  line-height: 1.7;
  color: var(--text);
  position: relative;
  padding: 0 40px;
}

.quote-bar blockquote::before {
  content: '“';
  position: absolute;
  top: -16px;
  left: 0;
  font-size: 64px;
  color: var(--accent);
  line-height: 1;
  font-family: Georgia, serif;
}

.quote-bar blockquote::after {
  content: '”';
  position: absolute;
  bottom: -40px;
  right: 0;
  font-size: 64px;
  color: var(--accent);
  line-height: 1;
  font-family: Georgia, serif;
}

/* ===== Steps Section ===== */
.steps-section {
  padding: 96px 0;
  background: var(--bg);
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 64px;
}

.section-header .section-tag {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 12px;
  display: block;
  font-weight: 500;
}

.section-header h2 {
  font-size: 34px;
  margin-bottom: 16px;
  position: relative;
}

.section-header p {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.8;
}

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

.steps-grid::before {
  content: '';
  position: absolute;
  top: 32px;
  left: 60px;
  right: 60px;
  height: 1px;
  background: var(--border);
  z-index: 0;
}

.step-item {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 24px 28px;
  position: relative;
  z-index: 1;
  box-shadow: var(--shadow);
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}

.step-item:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
  border-color: var(--accent);
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--accent);
  font-family: 'Inter', 'Roboto', sans-serif;
  font-weight: 700;
  font-size: 22px;
  margin-bottom: 20px;
  letter-spacing: 0.02em;
  transition: background-color var(--transition), color var(--transition);
}

.step-item:hover .step-num {
  background: var(--accent);
  color: var(--primary);
}

.step-item h3 {
  font-size: 20px;
  margin-bottom: 12px;
  color: var(--text);
  font-weight: 600;
}

.step-item p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.75;
}

/* ===== Scene Section ===== */
.scene-section {
  padding: 96px 0;
  background: var(--bg-white);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

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

.scene-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
  position: relative;
  overflow: hidden;
}

.scene-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 0;
  background: var(--accent);
  transition: height var(--transition);
}

.scene-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.scene-card:hover::before {
  height: 100%;
}

.scene-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: var(--primary);
  margin-bottom: 20px;
}

.scene-icon svg {
  width: 20px;
  height: 20px;
  stroke: var(--accent);
}

.scene-card h3 {
  font-size: 18px;
  margin-bottom: 10px;
  color: var(--text);
}

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

/* ===== FAQ Section ===== */
.faq-section {
  padding: 96px 0;
  background: var(--bg);
}

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

.faq-item {
  border-bottom: 1px solid var(--border);
}

.faq-item:first-child {
  border-top: 1px solid var(--border);
}

.faq-question {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 24px 0;
  cursor: pointer;
  transition: background-color var(--transition);
  position: relative;
}

.faq-num {
  font-family: 'Inter', 'Roboto', sans-serif;
  font-weight: 700;
  font-size: 15px;
  color: var(--accent);
  min-width: 28px;
  letter-spacing: 0.03em;
}

.faq-question-text {
  font-size: 17px;
  font-weight: 500;
  color: var(--text);
  flex: 1;
}

.faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform var(--transition), border-color var(--transition), background-color var(--transition);
}

.faq-icon::before,
.faq-icon::after {
  content: '';
  position: absolute;
  width: 10px;
  height: 2px;
  background: var(--text-aux);
  border-radius: 1px;
  transition: background-color var(--transition);
}

.faq-icon::after {
  transform: rotate(90deg);
}

.faq-icon {
  position: relative;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
  border-color: var(--accent);
  background: rgba(201, 160, 99, 0.1);
}

.faq-item.open .faq-icon::before,
.faq-item.open .faq-icon::after {
  background: var(--accent);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-answer-inner {
  padding: 0 0 24px 48px;
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
}

.faq-question:hover .faq-question-text {
  color: var(--accent);
}

/* ===== CTA Section ===== */
.cta-section {
  padding: 96px 0;
  background: var(--primary);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  opacity: 0.12;
}

.cta-section::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.cta-box {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
}

.cta-box h2 {
  font-size: 34px;
  color: var(--text-white);
  margin-bottom: 16px;
  font-family: 'Noto Serif SC', 'Source Han Serif SC', serif;
  font-weight: 600;
}

.cta-box p {
  font-size: 16px;
  color: rgba(240, 235, 226, 0.75);
  line-height: 1.8;
  margin-bottom: 36px;
}

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

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

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  padding-bottom: 48px;
}

.footer-brand .logo {
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.65);
  max-width: 260px;
}

.footer-col h4,
.footer-contact h4 {
  font-size: 15px;
  color: var(--text-white);
  margin-bottom: 20px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-col ul a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.65);
}

.footer-col ul a:hover {
  color: var(--accent);
}

.footer-contact p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.7;
  margin-bottom: 8px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
  letter-spacing: 0.02em;
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.4);
}

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

/* ===== Back to top ===== */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--primary);
  border: 1px solid rgba(255, 255, 255, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition), background-color var(--transition);
  z-index: 99;
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--accent);
  color: var(--primary);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .steps-grid::before {
    display: none;
  }

  .scene-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

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

  .intro-image {
    max-height: 360px;
  }

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

@media (max-width: 768px) {
  .top-bar-links {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .header-inner {
    height: 64px;
    gap: 16px;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-white);
    flex-direction: column;
    align-items: stretch;
    padding: 16px 24px 24px;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.06);
    gap: 4px;
  }

  .main-nav.open {
    display: flex;
    animation: navDrop 0.25s ease;
  }

  @keyframes navDrop {
    from {
      opacity: 0;
      transform: translateY(-8px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  .nav-link {
    padding: 14px 16px;
    border-radius: 6px;
    font-size: 16px;
  }

  .nav-link.active {
    background: var(--bg-green);
  }

  .nav-link::after {
    display: none;
  }

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

  .page-hero {
    padding: 48px 0;
  }

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

  .page-hero-sub {
    font-size: 16px;
  }

  .intro-section,
  .steps-section,
  .scene-section,
  .faq-section,
  .cta-section {
    padding: 64px 0;
  }

  .section-header {
    margin-bottom: 40px;
  }

  .section-header h2 {
    font-size: 24px;
  }

  .quote-bar {
    padding: 40px 0;
  }

  .quote-bar blockquote {
    font-size: 18px;
    padding: 0 20px;
  }

  .quote-bar blockquote::before {
    font-size: 40px;
    top: -8px;
  }

  .quote-bar blockquote::after {
    font-size: 40px;
    bottom: -24px;
  }

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

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

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

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

  .cta-box h2 {
    font-size: 26px;
  }
}

@media (max-width: 576px) {
  .container {
    padding: 0 16px;
  }

  .page-hero-actions {
    flex-direction: column;
    width: 100%;
  }

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

  .cta-actions {
    flex-direction: column;
    width: 100%;
  }

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

  .intro-content h2 {
    font-size: 24px;
  }

  .faq-question-text {
    font-size: 15px;
  }

  .faq-answer-inner {
    padding-left: 0;
  }

  .back-to-top {
    bottom: 20px;
    right: 20px;
  }
}

/* roulang page: category2 */
/* ========== Design Tokens ========== */
:root {
  --primary: #0E3B2E;
  --primary-dark: #0A2A20;
  --accent: #C9A063;
  --accent-hover: #D1AF7A;
  --bg-warm: #F7F4EF;
  --bg-white: #FFFFFF;
  --bg-light-green: #EDF2EE;
  --text-primary: #1A1D1C;
  --text-secondary: #4E5B55;
  --text-muted: #8A948E;
  --text-white: #F0EBE2;
  --text-gray: #B9BDB9;
  --border: #DFE5DF;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --shadow-sm: 0 1px 2px rgba(23,32,28,0.04);
  --shadow-lg: 0 8px 24px rgba(23,32,28,0.07);
  --transition: 0.25s ease;
  --container-w: 1200px;
  --serif: 'Noto Serif SC','Source Han Serif SC','Songti SC',serif;
  --sans: 'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --mono: 'JetBrains Mono','SF Mono','Consolas',monospace;
}

/* ========== Reset / Base ========== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}
body {
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-primary);
  background-color: var(--bg-warm);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition), background-color var(--transition), border-color var(--transition);
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
ul, ol {
  list-style: none;
}
button, input {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  border: none;
  background: none;
  cursor: pointer;
}
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.container {
  width: min(var(--container-w), 92%);
  margin: 0 auto;
}
.narrow-container {
  width: min(780px, 92%);
  margin: 0 auto;
}

/* ========== Top Bar ========== */
.top-bar {
  background: var(--primary-dark);
  height: 36px;
  display: flex;
  align-items: center;
  font-size: 13px;
  color: rgba(255,255,255,0.85);
}
.top-bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.top-bar-domain {
  color: rgba(255,255,255,0.65);
  font-family: var(--mono);
  letter-spacing: 0.3px;
}
.top-bar-links {
  display: flex;
  gap: 28px;
}
.top-bar-links a {
  color: rgba(255,255,255,0.8);
  font-size: 13px;
  transition: color var(--transition);
}
.top-bar-links a:hover {
  color: var(--accent);
}

/* ========== Header ========== */
.site-header {
  background: rgba(247,244,239,0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  height: 72px;
  display: flex;
  align-items: center;
  transition: box-shadow var(--transition);
}
.site-header.scrolled {
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo svg {
  flex-shrink: 0;
}
.logo-text {
  font-family: var(--sans);
  font-size: 22px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 0.5px;
  white-space: nowrap;
}
.logo-text em {
  font-style: normal;
  color: var(--accent);
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 1;
  justify-content: center;
}
.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: color var(--transition), background-color var(--transition);
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transition: width var(--transition);
}
.nav-link:hover {
  color: var(--primary);
  background: rgba(201,160,99,0.08);
}
.nav-link.active {
  color: var(--primary);
  font-weight: 600;
}
.nav-link.active::after {
  width: 100%;
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.btn-download {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 20px;
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  background: transparent;
  transition: background-color var(--transition), color var(--transition), border-color var(--transition);
}
.btn-download:hover {
  background: var(--accent);
  color: #0A2A20;
  border-color: var(--accent);
}
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
}
.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ========== Button ========== */
.btn-group {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 28px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.3px;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent);
  color: #0A2A20;
}
.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(201,160,99,0.24);
}
.btn-primary:active {
  transform: translateY(1px);
}
.btn-outline {
  background: transparent;
  color: var(--text-white);
  border: 1px solid rgba(255,255,255,0.5);
}
.btn-outline:hover {
  border-color: var(--text-white);
  background: rgba(255,255,255,0.08);
}
.btn-dark {
  background: var(--primary);
  color: var(--text-white);
}
.btn-dark:hover {
  background: #124A38;
  transform: translateY(-1px);
}

/* ========== Page Hero ========== */
.page-hero {
  position: relative;
  background-image: linear-gradient(110deg, rgba(10,42,32,0.92) 0%, rgba(14,59,46,0.85) 60%, rgba(14,59,46,0.72) 100%), url('/assets/images/backpic/back-1.webp');
  background-position: center;
  background-size: cover;
  color: var(--text-white);
  padding: 72px 0 80px;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 1px;
  height: 100%;
  background: linear-gradient(180deg, transparent, var(--accent) 30%, var(--accent) 70%, transparent);
}
.hero-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(255,255,255,0.55);
  margin-bottom: 18px;
}
.hero-breadcrumb a {
  color: rgba(255,255,255,0.55);
}
.hero-breadcrumb a:hover {
  color: var(--accent);
}
.hero-breadcrumb .sep {
  color: rgba(255,255,255,0.3);
}
.page-hero h1 {
  font-family: var(--serif);
  font-size: 42px;
  font-weight: 600;
  line-height: 1.3;
  color: var(--text-white);
  margin-bottom: 14px;
  letter-spacing: 1px;
}
.hero-lead {
  font-size: 17px;
  line-height: 1.8;
  color: rgba(255,255,255,0.75);
  max-width: 560px;
  margin-bottom: 32px;
}
.hero-accent-line {
  width: 48px;
  height: 2px;
  background: var(--accent);
  margin-bottom: 24px;
  border-radius: 2px;
}

/* ========== Section Head ========== */
.section {
  padding: 96px 0;
}
.section.bg-white {
  background: var(--bg-white);
}
.section.bg-green {
  background: var(--bg-light-green);
}
.section-head {
  text-align: center;
  margin-bottom: 56px;
}
.section-head .eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 12px;
  padding: 4px 14px;
  border: 1px solid rgba(201,160,99,0.4);
  border-radius: 20px;
  background: rgba(201,160,99,0.06);
}
.section-head .eyebrow.dark {
  border-color: rgba(201,160,99,0.6);
  color: var(--accent);
}
.section-head h2 {
  font-family: var(--sans);
  font-size: 34px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--text-primary);
  margin-bottom: 0.35em;
}
.section-head .subtitle {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.8;
}
.section-head .head-line {
  width: 40px;
  height: 2px;
  background: var(--accent);
  margin: 18px auto 0;
  border-radius: 2px;
}

/* ========== Feature Grid ========== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 32px 26px;
  transition: box-shadow var(--transition), transform var(--transition);
  position: relative;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 26px;
  right: 26px;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
  opacity: 0.4;
  transition: opacity var(--transition);
}
.feature-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}
.feature-card:hover::before {
  opacity: 1;
}
.feature-icon {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-sm);
  background: rgba(201,160,99,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}
.feature-icon svg {
  width: 22px;
  height: 22px;
  stroke: var(--accent);
  fill: none;
  stroke-width: 1.8;
}
.feature-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.feature-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ========== Core Points ========== */
.points-block {
  max-width: 780px;
  margin: 0 auto;
}
.points-visual {
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 48px;
  box-shadow: var(--shadow-sm);
}
.points-visual img {
  width: 100%;
  object-fit: cover;
  min-height: 220px;
}
.point-list-item {
  position: relative;
  padding: 28px 0 28px 28px;
  border-bottom: 1px solid var(--border);
}
.point-list-item:last-child {
  border-bottom: none;
}
.point-list-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 36px;
  width: 16px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}
.point-num {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--accent);
  letter-spacing: 1px;
  margin-bottom: 4px;
  display: block;
}
.point-list-item h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.point-list-item p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ========== Process Steps ========== */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.process-step {
  position: relative;
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 32px 24px 28px;
  transition: box-shadow var(--transition), transform var(--transition);
}
.process-step:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}
.step-index {
  font-family: var(--mono);
  font-size: 32px;
  font-weight: 700;
  color: transparent;
  -webkit-text-stroke: 1px var(--accent);
  line-height: 1.1;
  margin-bottom: 16px;
  display: block;
}
.process-step h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.process-step p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ========== FAQ ========== */
.faq-list {
  max-width: 780px;
  margin: 0 auto;
}
.faq-item {
  border-bottom: 1px solid var(--border);
}
.faq-item:first-child {
  border-top: 1px solid var(--border);
}
.faq-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 24px 0;
  text-align: left;
  cursor: pointer;
}
.faq-index {
  font-family: var(--mono);
  font-size: 14px;
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.5px;
  width: 38px;
  flex-shrink: 0;
}
.faq-question {
  flex: 1;
  font-size: 17px;
  font-weight: 500;
  color: var(--text-primary);
  transition: color var(--transition);
}
.faq-toggle:hover .faq-question {
  color: var(--accent);
}
.faq-icon {
  width: 20px;
  height: 20px;
  position: relative;
  flex-shrink: 0;
}
.faq-icon::before,
.faq-icon::after {
  content: '';
  position: absolute;
  background: var(--text-muted);
  transition: all var(--transition);
}
.faq-icon::before {
  width: 1px;
  height: 18px;
  top: 1px;
  left: 10px;
}
.faq-icon::after {
  width: 18px;
  height: 1px;
  top: 10px;
  left: 1px;
}
.faq-item.active .faq-icon::before {
  transform: scaleY(0);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
  padding-left: 54px;
  padding-right: 0;
}
.faq-answer-inner {
  padding-bottom: 24px;
}
.faq-answer-inner p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.85;
}

/* ========== CTA Card ========== */
.cta-section {
  padding: 96px 0;
}
.cta-card {
  position: relative;
  background: var(--primary);
  border-radius: var(--radius-lg);
  padding: 72px 48px;
  text-align: center;
  overflow: hidden;
}
.cta-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}
.cta-card::after {
  content: '';
  position: absolute;
  top: 24px;
  left: 24px;
  width: 64px;
  height: 64px;
  border-top: 1px solid rgba(201,160,99,0.24);
  border-left: 1px solid rgba(201,160,99,0.24);
  border-radius: var(--radius-md) 0 0 0;
  pointer-events: none;
}
.cta-card h2 {
  font-family: var(--serif);
  font-size: 30px;
  font-weight: 600;
  color: var(--text-white);
  margin-bottom: 12px;
}
.cta-card p {
  font-size: 16px;
  color: rgba(255,255,255,0.7);
  max-width: 520px;
  margin: 0 auto 32px;
  line-height: 1.8;
}
.cta-actions {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ========== Footer ========== */
.site-footer {
  background: var(--primary-dark);
  color: rgba(255,255,255,0.7);
  position: relative;
}
.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  padding: 64px 0 48px;
}
.footer-brand .logo {
  margin-bottom: 16px;
}
.footer-brand .logo-text {
  color: var(--text-white);
}
.footer-brand p {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  line-height: 1.8;
  max-width: 260px;
}
.footer-col h4,
.footer-contact h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-white);
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}
.footer-col ul li {
  margin-bottom: 10px;
}
.footer-col ul li a {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  transition: color var(--transition);
}
.footer-col ul li a:hover {
  color: var(--accent);
}
.footer-contact p {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  line-height: 1.8;
  margin-bottom: 6px;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 22px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}

/* ========== Reveal Animation ========== */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.55s cubic-bezier(0.22,1,0.36,1), transform 0.55s cubic-bezier(0.22,1,0.36,1);
}
.reveal.visible {
  opacity: 1;
  transform: none;
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ========== Responsive ========== */
@media (max-width: 1024px) {
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr;
    gap: 32px;
  }
  .footer-contact {
    grid-column: span 3;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 64px 0;
  }
  .page-hero {
    padding: 56px 0 64px;
  }
  .page-hero h1 {
    font-size: 32px;
  }
  .hero-lead {
    font-size: 15px;
  }
  .section-head h2 {
    font-size: 26px;
  }
  .top-bar-links {
    display: none;
  }
  .main-nav {
    position: fixed;
    top: 108px;
    left: 4%;
    right: 4%;
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: 0 8px 24px rgba(23,32,28,0.08);
    flex-direction: column;
    align-items: stretch;
    padding: 16px;
    gap: 4px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s;
    z-index: 99;
  }
  .main-nav.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  .nav-link {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
  }
  .nav-link::after {
    display: none;
  }
  .nav-toggle {
    display: flex;
  }
  .btn-download {
    display: none;
  }
  .feature-card {
    padding: 24px 20px;
  }
  .cta-card {
    padding: 48px 24px;
  }
  .cta-card h2 {
    font-size: 24px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
    padding: 48px 0 32px;
  }
  .footer-contact {
    grid-column: auto;
  }
}

@media (max-width: 576px) {
  .feature-grid {
    grid-template-columns: 1fr;
  }
  .process-grid {
    grid-template-columns: 1fr;
  }
  .btn-group {
    flex-direction: column;
    align-items: stretch;
  }
  .btn {
    width: 100%;
  }
  .section-head {
    margin-bottom: 40px;
  }
  .points-visual {
    margin-bottom: 32px;
  }
  .point-list-item {
    padding-left: 20px;
  }
  .faq-answer {
    padding-left: 40px;
  }
  .faq-index {
    width: 28px;
  }
}

@media (max-width: 375px) {
  .logo-text {
    font-size: 18px;
  }
  .page-hero h1 {
    font-size: 28px;
  }
  .hero-lead {
    font-size: 14px;
  }
  .faq-question {
    font-size: 15px;
  }
  .cta-actions {
    flex-direction: column;
  }
  .cta-actions .btn {
    width: 100%;
  }
}