/* roulang page: index */
:root {
  --bg: #F6F5F0;
  --surface: #FFFFFF;
  --primary: #1E4A44;
  --primary-deep: #142B29;
  --primary-light: #2A6058;
  --accent: #D4883C;
  --accent-light: #E8B573;
  --text-main: #1F2A28;
  --text-secondary: #5A6664;
  --text-light: #C6D6D2;
  --border: #E4E1D9;
  --success: #3E7B5A;
  --error: #B5563F;
  --radius-card: 16px;
  --radius-large: 24px;
  --radius-btn: 10px;
  --shadow-sm: 0 1px 3px rgba(21,42,40,0.06);
  --shadow-hover: 0 12px 24px rgba(21,42,40,0.10);
  --shadow-dark: 0 18px 40px rgba(0,0,0,0.15);
  --transition: 0.2s ease;
  --font-stack: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-stack);
  background: var(--bg);
  color: var(--text-main);
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; }
input, textarea { font-family: inherit; }
ul, ol { list-style: none; }

.app-shell { display: flex; min-height: 100vh; }

.sidebar {
  width: 240px;
  position: fixed;
  left: 0; top: 0; bottom: 0;
  background: var(--primary-deep);
  display: flex;
  flex-direction: column;
  z-index: 100;
  border-right: 1px solid rgba(255,255,255,0.06);
}
.sidebar-logo {
  height: 72px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 20px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.sidebar-logo svg { flex-shrink: 0; }
.logo-text { display: flex; flex-direction: column; line-height: 1.2; }
.logo-text strong {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.5px;
}
.logo-text span {
  color: #8FA8A3;
  font-size: 10px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}
.sidebar-nav { flex: 1; padding: 16px 12px; overflow-y: auto; }
.nav-group {
  color: #8FA8A3;
  font-size: 12px;
  padding: 16px 16px 6px;
  letter-spacing: 0.5px;
  font-weight: 600;
}
.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  height: 44px;
  padding: 0 16px;
  border-radius: 10px;
  color: #C6D6D2;
  font-size: 15px;
  font-weight: 500;
  position: relative;
  transition: background var(--transition), color var(--transition);
  margin-bottom: 2px;
}
.nav-item svg { width: 20px; height: 20px; flex-shrink: 0; }
.nav-item:hover { background: rgba(255,255,255,0.08); color: #fff; }
.nav-item.active {
  background: rgba(255,255,255,0.12);
  color: #fff;
}
.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 20px;
  background: var(--accent);
  border-radius: 0 4px 4px 0;
}
.sidebar-footer {
  padding: 16px 20px 20px;
  border-top: 1px solid rgba(255,255,255,0.06);
  color: #8FA8A3;
  font-size: 12px;
  line-height: 1.6;
}
.sidebar-footer .brand { color: #C6D6D2; font-weight: 600; }

.main { margin-left: 240px; flex: 1; min-width: 0; display: flex; flex-direction: column; }

.mobile-header {
  display: none;
  position: sticky;
  top: 0;
  z-index: 90;
  height: 60px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  align-items: center;
  padding: 0 16px;
  gap: 12px;
}
.mobile-header .burger {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
}
.mobile-header .burger:hover { background: rgba(30,74,68,0.08); }
.mobile-header .logo {
  font-size: 17px;
  font-weight: 700;
  color: var(--primary);
}
.drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(20,43,41,0.6);
  z-index: 200;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}
.drawer-overlay.show { opacity: 1; visibility: visible; }
.mobile-drawer {
  position: fixed;
  left: 0; top: 0; bottom: 0;
  width: 280px;
  background: var(--primary-deep);
  z-index: 201;
  transform: translateX(-100%);
  transition: transform 0.3s ease;
  display: flex;
  flex-direction: column;
  padding: 20px 16px;
}
.mobile-drawer.open { transform: translateX(0); }
.drawer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 8px 20px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  margin-bottom: 16px;
}
.drawer-logo strong { color: #fff; font-size: 16px; }
.drawer-logo span { color: #8FA8A3; font-size: 10px; display: block; }
.drawer-nav { flex: 1; }
.drawer-nav .nav-item { font-size: 15px; }
.drawer-footer {
  padding: 12px 8px;
  color: #8FA8A3;
  font-size: 12px;
  border-top: 1px solid rgba(255,255,255,0.06);
}

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

.section { padding: 80px 48px; }
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 36px;
}
.section-header h2 {
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.3;
  position: relative;
  padding-left: 16px;
}
.section-header h2::before {
  content: '';
  position: absolute;
  left: 0; top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 28px;
  background: var(--accent);
  border-radius: 2px;
}
.more-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  transition: gap var(--transition);
}
.more-link:hover { gap: 10px; color: var(--primary-light); }
.more-link svg { width: 16px; height: 16px; }

/* ===== Hero ===== */
.hero {
  background: linear-gradient(135deg, #1E4A44 0%, #142B29 100%);
  position: relative;
  padding: 80px 48px;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
}
.hero-decor {
  position: absolute;
  top: 60px;
  right: 60px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 2px dashed rgba(212,136,60,0.6);
  pointer-events: none;
}
.hero-decor::after {
  content: '';
  position: absolute;
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  top: -4px; right: -4px;
}
.hero-inner {
  display: flex;
  align-items: center;
  gap: 48px;
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
}
.hero-content { flex: 0 0 58%; }
.hero-content h1 {
  color: #fff;
  font-size: clamp(36px, 4.5vw, 52px);
  line-height: 1.25;
  font-weight: 700;
  margin-bottom: 20px;
  letter-spacing: 0.5px;
}
.hero-content .subtitle {
  color: var(--text-light);
  font-size: 18px;
  line-height: 1.8;
  max-width: 560px;
  margin-bottom: 32px;
}
.hero-actions { display: flex; gap: 20px; align-items: center; flex-wrap: wrap; }
.hero-media { flex: 0 0 42%; }
.hero-media img {
  width: 100%;
  height: 340px;
  object-fit: cover;
  border-radius: 20px;
  border: 1px solid rgba(255,255,255,0.12);
  box-shadow: var(--shadow-dark);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 28px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  white-space: nowrap;
}
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.btn-primary {
  background: var(--accent);
  color: var(--text-main);
}
.btn-primary:hover { background: var(--accent-light); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(212,136,60,0.3); }
.btn-primary:active { transform: translateY(1px); }
.btn-secondary {
  background: transparent;
  color: #C6D6D2;
  border: 1px solid rgba(255,255,255,0.7);
}
.btn-secondary:hover { background: rgba(255,255,255,0.1); transform: translateY(-2px); }
.btn-secondary:active { transform: translateY(1px); }
.btn-dark {
  background: var(--primary);
  color: #fff;
}
.btn-dark:hover { background: var(--primary-light); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(30,74,68,0.3); }
.btn-dark:active { transform: translateY(1px); }

/* ===== Cards ===== */
.cards-section { background: var(--bg); }
.cards-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 0.8fr;
  gap: 24px;
  align-items: stretch;
}
.card {
  border-radius: var(--radius-card);
  padding: 36px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform var(--transition), box-shadow var(--transition);
}
.card-large {
  background: linear-gradient(135deg, #142B29 0%, #1E4A44 100%);
  color: #fff;
  box-shadow: var(--shadow-dark);
}
.card-large:hover { transform: translateY(-4px); box-shadow: 0 20px 40px rgba(0,0,0,0.2); }
.card-small {
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}
.card-small:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }
.card-small::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: var(--accent);
  border-radius: 4px 4px 0 0;
  opacity: 0;
  transition: opacity var(--transition);
}
.card-small:hover::before { opacity: 1; }
.card-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}
.card-large .card-icon { background: rgba(212,136,60,0.2); }
.card-small .card-icon { background: rgba(30,74,68,0.08); }
.card-icon svg { width: 28px; height: 28px; }
.card-large .card-title {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 12px;
  line-height: 1.4;
}
.card-small .card-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
  line-height: 1.4;
  color: var(--text-main);
}
.card-large .card-desc {
  font-size: 15px;
  color: #C6D6D2;
  line-height: 1.7;
  flex: 1;
}
.card-small .card-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  flex: 1;
}
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  margin-top: 24px;
  transition: gap var(--transition);
}
.card-large .card-link { color: var(--accent-light); }
.card-small .card-link { color: var(--primary); }
.card-link:hover { gap: 10px; }
.card-link svg { width: 16px; height: 16px; }
.card-media {
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 20px;
  height: 140px;
  object-fit: cover;
  width: 100%;
}

/* ===== Stats ===== */
.stats-section { padding: 40px 48px 80px; }
.stats-card {
  background: linear-gradient(135deg, #1E4A44 0%, #142B29 100%);
  border-radius: var(--radius-large);
  padding: 48px 32px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  box-shadow: var(--shadow-dark);
}
.stat-item {
  text-align: center;
  padding: 16px 8px;
  position: relative;
}
.stat-item + .stat-item::before {
  content: '';
  position: absolute;
  left: 0; top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 60%;
  background: rgba(255,255,255,0.1);
}
.stat-num {
  font-size: clamp(34px, 4vw, 48px);
  font-weight: 700;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
}
.stat-unit { font-size: 18px; color: var(--accent-light); font-weight: 600; margin-left: 2px; }
.stat-desc { color: #C6D6D2; font-size: 14px; margin-top: 8px; }

/* ===== News ===== */
.news-section { background: var(--bg); }
.news-list {
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-card);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--surface);
}
.news-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
  min-height: 110px;
}
.news-item:last-child { border-bottom: none; }
.news-item:hover { background: #FAF8F3; }
.news-badge {
  display: inline-block;
  background: rgba(30,74,68,0.1);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
  white-space: nowrap;
  flex-shrink: 0;
}
.news-main { flex: 1; min-width: 0; }
.news-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-main);
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 4px;
  transition: color var(--transition);
}
.news-item:hover .news-title { color: var(--primary); }
.news-summary {
  font-size: 14px;
  color: var(--text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.6;
}
.news-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.news-date {
  font-size: 13px;
  color: var(--text-secondary);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.news-arrow {
  width: 20px; height: 20px;
  color: var(--border);
  transition: color var(--transition), transform var(--transition);
  flex-shrink: 0;
}
.news-item:hover .news-arrow { color: var(--primary); transform: translateX(4px); }
.news-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  text-align: center;
  color: var(--text-secondary);
}
.news-empty svg { width: 40px; height: 40px; margin-bottom: 12px; color: var(--border); }
.news-empty p { font-size: 15px; line-height: 1.6; }

/* ===== FAQ ===== */
.faq-section { background: var(--bg); }
.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  max-width: 1100px;
  margin: 0 auto;
}
.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.faq-item[open] {
  border-color: var(--primary);
  box-shadow: var(--shadow-sm);
}
.faq-item summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  height: 56px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  user-select: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-icon {
  width: 24px; height: 24px;
  flex-shrink: 0;
  color: var(--primary);
  transition: transform 0.3s ease;
}
.faq-item[open] .faq-icon { transform: rotate(45deg); }
.faq-answer {
  padding: 0 20px 20px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ===== CTA ===== */
.cta-section { padding: 40px 48px 80px; }
.cta-card {
  background: linear-gradient(135deg, #E8B573 0%, #D4883C 100%);
  border-radius: var(--radius-large);
  padding: 56px 32px;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 18px 40px rgba(212,136,60,0.25);
}
.cta-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 200px; height: 200px;
  background: rgba(255,255,255,0.08);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}
.cta-card h2 {
  font-size: 28px;
  font-weight: 700;
  color: #2A2017;
  margin-bottom: 12px;
  line-height: 1.4;
}
.cta-card p {
  font-size: 16px;
  color: #4A3826;
  max-width: 540px;
  margin: 0 auto 28px;
  line-height: 1.7;
}
.cta-privacy {
  margin-top: 20px;
  font-size: 12px;
  color: rgba(42,32,23,0.6);
}
.cta-privacy a {
  color: rgba(42,32,23,0.8);
  text-decoration: underline;
}
.cta-privacy a:hover { color: #2A2017; }

/* ===== Footer ===== */
.footer {
  background: var(--primary-deep);
  margin-top: auto;
  border-top: 2px solid var(--accent);
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding: 56px 48px 32px;
  max-width: 1200px;
  margin: 0 auto;
}
.footer-brand .footer-logo { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.footer-brand .footer-logo strong { color: #fff; font-size: 16px; }
.footer-brand .footer-logo span { color: #8FA8A3; font-size: 10px; display: block; }
.footer-brand p {
  color: #AFC3BF;
  font-size: 14px;
  line-height: 1.8;
  max-width: 280px;
}
.footer-col-title {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a {
  color: #AFC3BF;
  font-size: 14px;
  transition: color var(--transition);
}
.footer-col ul li a:hover { color: var(--accent-light); }
.footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #AFC3BF;
  font-size: 14px;
  margin-bottom: 12px;
}
.footer-contact svg { width: 18px; height: 18px; flex-shrink: 0; color: var(--accent); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 20px 48px;
  text-align: center;
  color: #8FA8A3;
  font-size: 12px;
  max-width: 1200px;
  margin: 0 auto;
}

/* ===== Modal ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(20,43,41,0.55);
  z-index: 300;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.modal-overlay.show { display: flex; }
.modal-card {
  background: var(--surface);
  border-radius: 20px;
  width: 100%;
  max-width: 520px;
  box-shadow: 0 24px 50px rgba(0,0,0,0.25);
  animation: modalIn 0.3s ease;
}
@keyframes modalIn {
  from { transform: translateY(30px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}
.modal-header {
  background: var(--primary-deep);
  padding: 20px 24px;
  border-radius: 20px 20px 0 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: #fff;
}
.modal-header h3 { font-size: 18px; font-weight: 600; }
.modal-close {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: transparent;
  color: #C6D6D2;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}
.modal-close:hover { background: rgba(255,255,255,0.1); color: #fff; }
.modal-body { padding: 32px; }
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 6px;
}
.form-group input,
.form-group textarea {
  width: 100%;
  height: 48px;
  border: 1px solid #D8D3C8;
  background: #FAF9F5;
  border-radius: var(--radius-btn);
  padding: 0 16px;
  font-size: 15px;
  color: var(--text-main);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-group textarea { height: 120px; padding: 12px 16px; resize: vertical; }
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(30,74,68,0.15);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: #A8B2AF; }
.btn-block { width: 100%; height: 52px; }

/* ===== Responsive ===== */
@media (max-width: 1199px) {
  .sidebar { width: 80px; }
  .sidebar-logo { padding: 0 12px; justify-content: center; }
  .logo-text { display: none; }
  .nav-item { justify-content: center; padding: 0; font-size: 0; gap: 0; }
  .nav-item svg { width: 22px; height: 22px; }
  .nav-item.active::before { left: -12px; }
  .nav-group { text-align: center; padding: 16px 0 6px; font-size: 10px; }
  .sidebar-footer { text-align: center; padding: 16px 8px; font-size: 10px; }
  .main { margin-left: 80px; }
  .section { padding: 60px 32px; }
  .hero { padding: 60px 32px; }
  .hero-inner { flex-direction: column; }
  .hero-content { flex: 1; }
  .hero-media { flex: 1; width: 100%; }
  .hero-media img { height: 280px; }
  .cards-grid { grid-template-columns: 1fr 1fr; }
  .card-large { grid-column: 1 / -1; }
  .stats-card { grid-template-columns: repeat(4, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .sidebar { display: none; }
  .main { margin-left: 0; }
  .mobile-header { display: flex; }
  .section { padding: 48px 16px; }
  .hero { padding: 40px 16px; }
  .hero-inner { gap: 24px; }
  .hero-content h1 { font-size: 32px; }
  .hero-content .subtitle { font-size: 16px; }
  .hero-media img { height: 200px; }
  .cards-grid { grid-template-columns: 1fr; }
  .stats-card { grid-template-columns: 1fr 1fr; gap: 24px 16px; padding: 32px 20px; }
  .stat-item + .stat-item::before { display: none; }
  .stats-card { background: linear-gradient(135deg, #1E4A44 0%, #142B29 100%); }
  .stat-item:nth-child(2n+1) { border-right: 1px solid rgba(255,255,255,0.08); }
  .faq-grid { grid-template-columns: 1fr; }
  .cta-section { padding: 24px 16px 48px; }
  .cta-card { padding: 40px 20px; }
  .cta-card h2 { font-size: 24px; }
  .footer-inner { grid-template-columns: 1fr; gap: 24px; padding: 40px 16px 24px; }
  .footer-bottom { padding: 16px; }
  .news-item { flex-wrap: wrap; padding: 16px; gap: 10px; }
  .news-title { font-size: 16px; }
  .news-meta { margin-left: auto; }
  .section-header { margin-bottom: 24px; }
  .section-header h2 { font-size: 24px; padding-left: 12px; }
}
@media (max-width: 520px) {
  .hero-actions { flex-direction: column; width: 100%; }
  .hero-actions .btn { width: 100%; }
  .hero-media img { height: 180px; }
  .cards-grid { gap: 16px; }
  .card { padding: 24px; }
  .stats-card { grid-template-columns: 1fr 1fr; }
  .stat-num { font-size: 30px; }
  .news-item { flex-direction: column; align-items: flex-start; }
  .news-meta { width: 100%; justify-content: space-between; margin-left: 0; }
  .news-badge { order: -1; }
  .btn { padding: 0 20px; }
  .modal-body { padding: 24px; }
}

/* roulang page: category1 */
:root {
  --bg: #F6F5F0;
  --surface: #FFFFFF;
  --primary: #1E4A44;
  --primary-deep: #142B29;
  --accent: #D4883C;
  --accent-light: #E8B573;
  --text: #1F2A28;
  --text-weak: #5A6664;
  --border: #E4E1D9;
  --light-text: #C6D6D2;
  --shadow-sm: 0 1px 3px rgba(21,42,40,0.06);
  --shadow-hover: 0 12px 24px rgba(21,42,40,0.10);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --radius-xs: 8px;
  --transition: 0.2s ease;
  --sidebar-w: 240px;
  --sidebar-w-sm: 80px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
}

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

ul,
ol {
  list-style: none;
}

.container {
  margin-left: var(--sidebar-w);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ===== Sidebar ===== */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-w);
  height: 100vh;
  background: var(--primary-deep);
  display: flex;
  flex-direction: column;
  z-index: 100;
  border-right: 1px solid rgba(255,255,255,0.06);
  transition: transform var(--transition);
}

.sidebar-logo {
  height: 72px;
  padding: 0 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  flex-shrink: 0;
}

.brand-mark {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand-text strong {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.02em;
}

.brand-text span {
  font-size: 10px;
  color: #8FA8A3;
  letter-spacing: 0.08em;
  margin-top: 2px;
  text-transform: uppercase;
}

.sidebar-content {
  flex: 1;
  padding: 16px 12px;
  overflow-y: auto;
}

.nav-group-label {
  font-size: 12px;
  color: #8FA8A3;
  padding: 10px 20px 6px;
}

.drawer-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  height: 44px;
  padding: 0 16px;
  border-radius: 10px;
  color: #C6D6D2;
  font-size: 15px;
  font-weight: 500;
  transition: background var(--transition), color var(--transition);
}

.nav-item svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  opacity: 0.85;
}

.nav-item:hover {
  background: rgba(255,255,255,0.08);
  color: #fff;
}

.nav-item.active {
  background: rgba(255,255,255,0.12);
  color: #fff;
  box-shadow: inset 4px 0 0 var(--accent);
}

.sidebar-footer {
  padding: 20px;
  border-top: 1px solid rgba(255,255,255,0.06);
  font-size: 12px;
  color: #8FA8A3;
  line-height: 1.7;
}

/* ===== Mobile header ===== */
.mobile-header {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 60px;
  background: #fff;
  z-index: 200;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  box-shadow: var(--shadow-sm);
}

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

.mobile-logo strong {
  font-size: 16px;
  font-weight: 700;
  color: var(--primary);
}

.hamburger {
  width: 40px;
  height: 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  background: transparent;
  border-radius: 10px;
}

.hamburger span {
  width: 20px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

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

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

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

.drawer-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(20,43,41,0.6);
  z-index: 150;
  opacity: 0;
  transition: opacity var(--transition);
}

.drawer-overlay.show {
  opacity: 1;
}

.drawer-overlay.active {
  display: block;
}

/* ===== Main ===== */
.main {
  flex: 1;
}

/* ===== Breadcrumb ===== */
.breadcrumb-wrap {
  padding: 28px 48px 0;
}

.breadcrumb {
  font-size: 14px;
  color: var(--text-weak);
  display: flex;
  align-items: center;
  gap: 8px;
}

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

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

.breadcrumb .sep {
  color: #999;
}

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

/* ===== Hero ===== */
.category-hero {
  position: relative;
  background: linear-gradient(135deg, #1E4A44 0%, #142B29 100%);
  border-radius: var(--radius-lg);
  margin: 24px 48px 0;
  padding: 64px 48px;
  overflow: hidden;
  display: flex;
  align-items: center;
  gap: 48px;
}

.category-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='40' height='40' viewBox='0 0 40 40'%3E%3Cpath d='M0 0h40v40H0z' fill='none' stroke='rgba(255,255,255,0.04)' stroke-width='1'/%3E%3C/svg%3E");
  pointer-events: none;
}

.category-hero::after {
  content: "";
  position: absolute;
  top: 24px;
  right: 32px;
  width: 40px;
  height: 40px;
  border: 2px solid rgba(212,136,60,0.6);
  border-radius: 50%;
  pointer-events: none;
}

.category-hero-content {
  position: relative;
  z-index: 1;
  flex: 1;
}

.category-hero h1 {
  color: #fff;
  font-size: clamp(32px, 3.5vw, 44px);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 12px;
}

.category-hero p.lead {
  color: var(--light-text);
  font-size: 17px;
  line-height: 1.8;
  max-width: 620px;
  margin-bottom: 24px;
}

.category-hero .hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.18);
  color: var(--accent-light);
  font-size: 13px;
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 20px;
}

.category-hero .hero-meta {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.category-hero .hero-meta span {
  color: var(--light-text);
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.category-hero .hero-meta svg {
  width: 16px;
  height: 16px;
  color: var(--accent);
}

.category-hero-img {
  flex-shrink: 0;
  width: 360px;
  height: 240px;
  border-radius: 20px;
  border: 1px solid rgba(255,255,255,0.12);
  box-shadow: 0 18px 40px rgba(0,0,0,0.2);
  object-fit: cover;
  position: relative;
  z-index: 1;
}

/* ===== Section base ===== */
.section {
  padding: 80px 48px 0;
}

.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 40px;
}

.section-header h2 {
  font-size: clamp(26px, 3vw, 34px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--text);
  position: relative;
}

.section-header h2::after {
  content: "";
  display: block;
  width: 40px;
  height: 3px;
  background: var(--accent);
  border-radius: 3px;
  margin-top: 10px;
}

.section-header .section-desc {
  font-size: 15px;
  color: var(--text-weak);
  max-width: 380px;
  text-align: right;
}

/* ===== Product grid ===== */
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.product-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(30,74,68,0.25);
}

.product-card .card-cover {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--primary-deep);
}

.product-card .card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

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

.product-card .card-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(20,43,41,0.35), transparent 60%);
}

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

.product-card .card-badge {
  align-self: flex-start;
  font-size: 12px;
  background: rgba(30,74,68,0.08);
  color: var(--primary);
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 12px;
  font-weight: 600;
}

.product-card h3 {
  font-size: 19px;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 10px;
  color: var(--text);
}

.product-card p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-weak);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
  margin-bottom: 16px;
}

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

.product-card .card-link svg {
  width: 15px;
  height: 15px;
}

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

/* ===== Scenarios ===== */
.scenario-section {
  background: var(--surface);
  border-radius: var(--radius-lg);
  margin: 80px 48px 0;
  padding: 64px 48px;
  border: 1px solid var(--border);
}

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

.scenario-item {
  padding: 28px 24px;
  border-radius: var(--radius-md);
  background: var(--bg);
  border: 1px solid var(--border);
  transition: transform var(--transition), box-shadow var(--transition);
}

.scenario-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.scenario-item .scenario-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: linear-gradient(135deg, #1E4A44, #142B29);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-light);
  margin-bottom: 16px;
}

.scenario-item .scenario-icon svg {
  width: 22px;
  height: 22px;
}

.scenario-item h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text);
}

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

/* ===== Process ===== */
.process-section {
  padding: 80px 48px 0;
}

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

.process-steps::before {
  content: "";
  position: absolute;
  top: 32px;
  left: 8%;
  right: 8%;
  height: 2px;
  background: repeating-linear-gradient(90deg, var(--border) 0 8px, transparent 8px 16px);
  z-index: 0;
}

.process-step {
  position: relative;
  z-index: 1;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  text-align: center;
  transition: transform var(--transition), box-shadow var(--transition);
}

.process-step:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.step-num {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: linear-gradient(135deg, #1E4A44, #142B29);
  color: var(--accent-light);
  font-size: 22px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 20px rgba(30,74,68,0.25);
}

.process-step h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
}

.process-step p {
  font-size: 13px;
  color: var(--text-weak);
  line-height: 1.7;
}

/* ===== FAQ ===== */
.faq-section {
  padding: 80px 48px 0;
}

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

.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.faq-item[open] {
  border-color: var(--primary);
  box-shadow: var(--shadow-hover);
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 48px;
  padding: 0 20px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  list-style: none;
  gap: 16px;
}

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

.faq-item summary + * {
  padding: 0 20px 20px;
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.7;
}

.faq-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  background: var(--primary);
  border-radius: 2px;
  transition: transform var(--transition);
}

.faq-icon::before {
  width: 12px;
  height: 2px;
}

.faq-icon::after {
  width: 2px;
  height: 12px;
}

.faq-item[open] .faq-icon::after {
  transform: rotate(90deg);
  opacity: 0;
}

.faq-item[open] .faq-icon::before {
  transform: rotate(180deg);
}

/* ===== CTA ===== */
.cta-section {
  padding: 80px 48px;
}

.cta-card {
  background: linear-gradient(135deg, #E8B573 0%, #D4883C 100%);
  border-radius: var(--radius-lg);
  padding: 56px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-card::before {
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 160px;
  height: 160px;
  border: 3px solid rgba(42,32,23,0.15);
  border-radius: 50%;
}

.cta-card::after {
  content: "";
  position: absolute;
  bottom: -40px;
  left: -40px;
  width: 100px;
  height: 100px;
  border: 2px solid rgba(255,255,255,0.3);
  border-radius: 50%;
}

.cta-card h2 {
  font-size: clamp(24px, 3vw, 30px);
  font-weight: 700;
  color: #2A2017;
  margin-bottom: 8px;
  position: relative;
  z-index: 1;
}

.cta-card p {
  font-size: 16px;
  color: #4A3826;
  margin-bottom: 28px;
  position: relative;
  z-index: 1;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 32px;
  background: var(--primary);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  gap: 8px;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  position: relative;
  z-index: 1;
}

.btn-primary:hover {
  background: var(--primary-deep);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(20,43,41,0.3);
}

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

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

.cta-privacy {
  font-size: 12px;
  color: rgba(42,32,23,0.7);
  margin-top: 18px;
  position: relative;
  z-index: 1;
}

.cta-privacy a {
  text-decoration: underline;
  color: #2A2017;
}

/* ===== Footer ===== */
.footer {
  background: #142B29;
  margin-top: auto;
  border-top: 2px solid var(--accent);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 56px 48px 32px;
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 1fr;
  gap: 48px;
}

.footer-brand .footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.footer-logo .logo-mark {
  width: 36px;
  height: 36px;
}

.footer-logo strong {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  display: block;
}

.footer-logo span {
  font-size: 11px;
  color: #8FA8A3;
  letter-spacing: 0.06em;
}

.footer-brand p {
  font-size: 14px;
  color: #AFC3BF;
  line-height: 1.8;
  max-width: 340px;
}

.footer-col-title {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 20px;
}

.footer-col ul li {
  margin-bottom: 12px;
}

.footer-col ul li a {
  font-size: 14px;
  color: #AFC3BF;
  transition: color var(--transition);
}

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

.footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: #AFC3BF;
  margin-bottom: 14px;
}

.footer-contact svg {
  width: 18px;
  height: 18px;
  color: var(--accent-light);
  flex-shrink: 0;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 20px 48px;
  text-align: center;
}

.footer-bottom p {
  font-size: 12px;
  color: #8FA8A3;
}

.footer-bottom a {
  color: #8FA8A3;
}

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

/* ===== Modal ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(20,43,41,0.55);
  z-index: 300;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  transition: opacity var(--transition);
}

.modal-overlay.show {
  opacity: 1;
}

.modal-overlay.active {
  display: flex;
}

.modal {
  background: #fff;
  border-radius: 20px;
  width: 100%;
  max-width: 520px;
  overflow: hidden;
  transform: translateY(20px);
  transition: transform var(--transition);
}

.modal-overlay.show .modal {
  transform: translateY(0);
}

.modal-header {
  background: var(--primary-deep);
  padding: 24px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h3 {
  color: #fff;
  font-size: 18px;
  font-weight: 600;
}

.modal-close {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: transparent;
  color: #fff;
  font-size: 22px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}

.modal-close:hover {
  background: rgba(255,255,255,0.15);
}

.modal-body {
  padding: 32px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}

.form-control {
  width: 100%;
  height: 48px;
  border: 1px solid #D8D3C8;
  border-radius: var(--radius-sm);
  background: #FAF9F5;
  padding: 0 16px;
  font-family: inherit;
  font-size: 14px;
  color: var(--text);
  transition: border-color var(--transition), box-shadow var(--transition);
}

textarea.form-control {
  height: 120px;
  padding: 14px 16px;
  resize: vertical;
  line-height: 1.6;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(30,74,68,0.15);
  background: #fff;
}

.btn-submit {
  width: 100%;
  height: 52px;
  background: var(--primary);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: background var(--transition), transform var(--transition);
  margin-top: 8px;
}

.btn-submit:hover {
  background: var(--primary-deep);
  transform: translateY(-2px);
}

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

/* ===== Responsive ===== */
@media (max-width: 1199px) {
  .sidebar {
    width: var(--sidebar-w-sm);
  }

  .container {
    margin-left: var(--sidebar-w-sm);
  }

  .sidebar-logo {
    padding: 0 16px;
    justify-content: center;
  }

  .brand-text {
    display: none;
  }

  .nav-group-label {
    display: none;
  }

  .nav-item {
    justify-content: center;
    padding: 0;
    height: 48px;
  }

  .nav-item span {
    display: none;
  }

  .nav-item.active {
    box-shadow: inset 0 0 0 2px var(--accent);
  }

  .sidebar-footer {
    display: none;
  }

  .breadcrumb-wrap {
    padding: 24px 32px 0;
  }

  .category-hero {
    margin-left: 32px;
    margin-right: 32px;
    gap: 32px;
  }

  .category-hero-img {
    width: 280px;
  }

  .section {
    padding: 64px 32px 0;
  }

  .scenario-section {
    margin: 64px 32px 0;
    padding: 48px 32px;
  }

  .process-section {
    padding: 64px 32px 0;
  }

  .faq-section {
    padding: 64px 32px 0;
  }

  .cta-section {
    padding: 64px 32px;
  }

  .footer-inner {
    padding: 48px 32px 24px;
    gap: 32px;
  }

  .footer-bottom {
    padding: 16px 32px;
  }
}

@media (max-width: 991px) {
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

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

  .category-hero {
    flex-direction: column;
    align-items: flex-start;
  }

  .category-hero-img {
    width: 100%;
    height: 200px;
  }

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

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
    width: 280px;
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .brand-text {
    display: flex;
  }

  .sidebar-logo {
    justify-content: flex-start;
    padding: 0 20px;
  }

  .nav-group-label {
    display: block;
  }

  .nav-item {
    justify-content: flex-start;
    padding: 0 16px;
    height: 44px;
  }

  .nav-item span {
    display: inline;
  }

  .sidebar-footer {
    display: block;
  }

  .mobile-header {
    display: flex;
  }

  .container {
    margin-left: 0;
    padding-top: 60px;
  }

  .breadcrumb-wrap {
    padding: 20px 16px 0;
  }

  .category-hero {
    margin: 16px 16px 0;
    padding: 40px 24px;
    border-radius: 16px;
  }

  .category-hero h1 {
    font-size: 30px;
  }

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

  .category-hero-img {
    height: 160px;
  }

  .section {
    padding: 48px 16px 0;
  }

  .section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 28px;
  }

  .section-header .section-desc {
    text-align: left;
    max-width: 100%;
  }

  .product-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .scenario-section {
    margin: 48px 16px 0;
    padding: 32px 20px;
    border-radius: 16px;
  }

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

  .process-section {
    padding: 48px 16px 0;
  }

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

  .step-num {
    width: 56px;
    height: 56px;
    font-size: 18px;
  }

  .faq-section {
    padding: 48px 16px 0;
  }

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

  .cta-section {
    padding: 48px 16px;
  }

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

  .footer-inner {
    grid-template-columns: 1fr;
    padding: 40px 24px 20px;
    gap: 32px;
  }

  .footer-bottom {
    padding: 16px 24px;
  }
}

@media (max-width: 520px) {
  .category-hero {
    padding: 32px 20px;
  }

  .category-hero .hero-meta {
    flex-direction: column;
    gap: 8px;
  }

  .cta-card h2 {
    font-size: 22px;
  }

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

  .modal-header {
    padding: 20px 24px;
  }

  .footer-contact li {
    word-break: break-all;
  }
}

/* roulang page: article */
:root {
            --bg: #F6F5F0;
            --surface: #FFFFFF;
            --primary: #1E4A44;
            --primary-deep: #142B29;
            --accent: #D4883C;
            --accent-light: #E8B573;
            --text: #1F2A28;
            --text-secondary: #5A6664;
            --border: #E4E1D9;
            --on-dark: #C6D6D2;
            --muted-dark: #8FA8A3;
            --sidebar-w: 240px;
            --sidebar-w-md: 80px;
            --radius: 16px;
            --radius-lg: 24px;
            --shadow-sm: 0 1px 3px rgba(21,42,40,0.06);
            --shadow-hover: 0 12px 24px rgba(21,42,40,0.10);
            --transition: 0.2s ease;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background: var(--bg);
            color: var(--text);
            font-size: 16px;
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary);
            text-decoration: none;
        }
        a:hover {
            color: var(--primary-deep);
        }
        img {
            max-width: 100%;
            display: block;
        }
        ul,
        ol {
            list-style: none;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        .app-shell {
            display: flex;
            min-height: 100vh;
        }
        /* 侧边栏 */
        .sidebar {
            width: var(--sidebar-w);
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            background: var(--primary-deep);
            z-index: 100;
            display: flex;
            flex-direction: column;
            border-right: 1px solid rgba(255, 255, 255, 0.06);
            overflow-y: auto;
        }
        .sidebar-logo {
            height: 72px;
            display: flex;
            align-items: center;
            padding: 0 20px;
            gap: 12px;
            flex-shrink: 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }
        .sidebar-logo svg {
            width: 28px;
            height: 28px;
            flex-shrink: 0;
        }
        .logo-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }
        .logo-text strong {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
        }
        .logo-text span {
            color: var(--muted-dark);
            font-size: 10px;
            letter-spacing: 0.6px;
            margin-top: 2px;
        }
        .sidebar-nav-group {
            padding: 20px 20px 6px;
            font-size: 12px;
            color: var(--muted-dark);
            letter-spacing: 0.5px;
        }
        .drawer-nav {
            padding: 0 12px;
            display: flex;
            flex-direction: column;
            gap: 4px;
            flex-shrink: 0;
        }
        .drawer-nav .nav-item {
            display: flex;
            align-items: center;
            gap: 10px;
            height: 44px;
            padding: 0 8px;
            border-radius: 10px;
            color: var(--on-dark);
            text-decoration: none;
            font-size: 15px;
            transition: all var(--transition);
            border: 1px solid transparent;
        }
        .drawer-nav .nav-item svg {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
        }
        .drawer-nav .nav-item:hover {
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }
        .drawer-nav .nav-item.active {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            box-shadow: inset 3px 0 0 var(--accent);
        }
        .drawer-nav .nav-item:focus-visible,
        .btn:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .sidebar-footer {
            margin-top: auto;
            padding: 20px;
            font-size: 12px;
            color: var(--muted-dark);
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            line-height: 1.7;
        }
        /* 移动端头部 */
        .mobile-header {
            display: none;
            height: 60px;
            background: var(--surface);
            position: sticky;
            top: 0;
            z-index: 99;
            align-items: center;
            justify-content: space-between;
            padding: 0 16px;
            box-shadow: 0 1px 4px rgba(21, 42, 40, 0.06);
        }
        .mobile-logo {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .mobile-logo svg {
            width: 26px;
            height: 26px;
        }
        .mobile-logo strong {
            font-size: 16px;
            color: var(--primary);
            font-weight: 700;
        }
        .hamburger {
            width: 40px;
            height: 40px;
            border: none;
            background: transparent;
            cursor: pointer;
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: rgba(30, 74, 68, 0.08);
        }
        .drawer-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(20, 43, 41, 0.55);
            z-index: 120;
            opacity: 0;
            transition: opacity 0.3s;
        }
        .drawer-overlay.active {
            display: block;
            opacity: 1;
        }
        .drawer-panel {
            display: none;
            position: fixed;
            left: 0;
            top: 0;
            bottom: 0;
            width: 280px;
            background: var(--primary-deep);
            z-index: 130;
            transform: translateX(-100%);
            transition: transform 0.3s ease;
            padding: 16px 0 32px;
            overflow-y: auto;
        }
        .drawer-panel.open {
            transform: translateX(0);
        }
        .drawer-panel .sidebar-logo {
            border-bottom: none;
        }
        .drawer-panel .drawer-nav {
            margin-top: 12px;
        }
        .drawer-panel .nav-item {
            font-size: 15px;
            padding: 12px 20px;
            height: 48px;
        }
        /* 主区域 */
        .main-wrap {
            flex: 1;
            margin-left: var(--sidebar-w);
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        .main-content {
            flex: 1;
            padding: 48px;
            max-width: 1200px;
            width: 100%;
        }
        /* 面包屑 */
        .breadcrumb {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 28px;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
        }
        .breadcrumb a {
            color: var(--text-secondary);
            text-decoration: none;
            transition: color 0.2s;
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: var(--border);
            margin: 0 2px;
        }
        .breadcrumb .current {
            color: var(--text);
            font-weight: 500;
            max-width: 280px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        /* 文章容器 */
        .article {
            max-width: 860px;
            margin: 0 auto;
            background: var(--surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            padding: 40px 48px;
            box-shadow: var(--shadow-sm);
        }
        .article-header {
            margin-bottom: 36px;
        }
        .article-category {
            display: inline-block;
            padding: 4px 16px;
            background: rgba(30, 74, 68, 0.08);
            color: var(--primary);
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }
        .article-title {
            font-size: clamp(28px, 3vw, 34px);
            line-height: 1.3;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 18px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 24px;
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 24px;
            border-bottom: 1px solid var(--border);
            padding-bottom: 20px;
        }
        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .article-meta .meta-dot {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--accent);
        }
        .article-excerpt {
            background: #F1EDE4;
            border-radius: 12px;
            padding: 22px 24px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 8px;
            border-left: 4px solid var(--accent);
        }
        /* 正文排版 */
        .article-content {
            font-size: 17px;
            line-height: 1.9;
            color: var(--text);
        }
        .article-content h2 {
            font-size: clamp(22px, 2.4vw, 26px);
            font-weight: 700;
            margin: 48px 0 16px;
            color: var(--text);
            padding-top: 8px;
        }
        .article-content h3 {
            font-size: 20px;
            font-weight: 600;
            margin: 32px 0 12px;
            color: var(--text);
        }
        .article-content h4 {
            font-size: 18px;
            font-weight: 600;
            margin: 24px 0 10px;
        }
        .article-content p {
            margin-bottom: 1.4em;
        }
        .article-content img {
            max-width: 100%;
            border-radius: 12px;
            margin: 24px auto;
            box-shadow: var(--shadow-sm);
        }
        .article-content blockquote {
            border-left: 4px solid var(--accent);
            background: #F1EDE4;
            padding: 20px 24px;
            border-radius: 0 8px 8px 0;
            margin: 28px 0;
            color: var(--text-secondary);
            font-style: normal;
        }
        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 28px 0;
            font-size: 15px;
        }
        .article-content th {
            background: var(--primary);
            color: #fff;
            padding: 12px 16px;
            text-align: left;
            font-weight: 600;
        }
        .article-content td {
            border: 1px solid var(--border);
            padding: 12px 16px;
        }
        .article-content tr:hover td {
            background: #FAF8F3;
        }
        .article-content code {
            background: var(--primary-deep);
            color: #D8E6E2;
            padding: 3px 10px;
            border-radius: 6px;
            font-family: "SFMono-Regular", Consolas, monospace;
            font-size: 14px;
        }
        .article-content pre {
            background: var(--primary-deep);
            color: #D8E6E2;
            padding: 20px;
            border-radius: 12px;
            overflow-x: auto;
            margin: 24px 0;
            line-height: 1.7;
        }
        .article-content pre code {
            background: transparent;
            padding: 0;
            color: inherit;
        }
        .article-content a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 3px;
            transition: color 0.2s;
        }
        .article-content a:hover {
            color: var(--primary-deep);
        }
        .article-content ul,
        .article-content ol {
            margin: 0 0 1.4em 1.6em;
        }
        .article-content ul {
            list-style: disc;
        }
        .article-content ol {
            list-style: decimal;
        }
        .article-content li {
            margin-bottom: 0.5em;
        }
        .article-content figure {
            margin: 24px 0;
        }
        .article-content figcaption {
            text-align: center;
            font-size: 13px;
            color: var(--text-secondary);
            margin-top: 8px;
        }
        /* 标签 */
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 40px;
            padding-top: 28px;
            border-top: 1px solid var(--border);
        }
        .tag {
            display: inline-flex;
            align-items: center;
            padding: 5px 16px;
            background: #F1EDE4;
            color: var(--text-secondary);
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            transition: all 0.2s;
        }
        .tag:hover {
            background: var(--accent-light);
            color: #1F2A28;
        }
        /* 无文状态 */
        .not-found {
            text-align: center;
            padding: 100px 40px;
            background: var(--surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            max-width: 680px;
            margin: 40px auto;
            box-shadow: var(--shadow-sm);
        }
        .not-found-icon {
            width: 72px;
            height: 72px;
            margin: 0 auto 20px;
            border-radius: 50%;
            background: #F1EDE4;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
        }
        .not-found-icon svg {
            width: 32px;
            height: 32px;
        }
        .not-found h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
        }
        .not-found p {
            color: var(--text-secondary);
            margin-bottom: 28px;
            font-size: 15px;
        }
        /* 按钮 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 48px;
            padding: 0 28px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            text-decoration: none;
            transition: all var(--transition);
            border: 1px solid transparent;
            line-height: 1;
        }
        .btn-primary {
            background: var(--accent);
            color: #1F2A28;
        }
        .btn-primary:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(212, 136, 60, 0.25);
            color: #1F2A28;
        }
        .btn-primary:active {
            transform: translateY(-1px);
        }
        .btn-outline {
            background: transparent;
            border: 1px solid var(--primary);
            color: var(--primary);
        }
        .btn-outline:hover {
            background: rgba(30, 74, 68, 0.08);
            color: var(--primary);
        }
        /* 相关推荐 */
        .related-posts {
            max-width: 860px;
            margin: 56px auto 0;
            padding-top: 48px;
            border-top: 1px solid var(--border);
        }
        .related-posts h2 {
            font-size: clamp(22px, 2.4vw, 28px);
            font-weight: 700;
            color: var(--text);
            margin-bottom: 28px;
            position: relative;
            padding-left: 16px;
        }
        .related-posts h2::before {
            content: "";
            position: absolute;
            left: 0;
            top: 6px;
            bottom: 6px;
            width: 4px;
            border-radius: 4px;
            background: var(--accent);
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: var(--surface);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: all var(--transition);
            text-decoration: none;
            display: block;
        }
        .related-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-color: rgba(30, 74, 68, 0.25);
        }
        .related-card .cover {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: #E9E7DF;
        }
        .related-card .cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }
        .related-card:hover .cover img {
            transform: scale(1.03);
        }
        .related-card .card-body {
            padding: 20px;
        }
        .related-card .card-body h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-body time {
            font-size: 13px;
            color: var(--text-secondary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .related-card .card-body time::before {
            content: "";
            width: 14px;
            height: 1px;
            background: var(--accent);
            display: inline-block;
        }
        /* 返回列表 */
        .article-return {
            max-width: 860px;
            margin: 40px auto 0;
            text-align: center;
        }
        /* 页脚 */
        .footer {
            background: var(--primary-deep);
            border-top: 2px solid var(--accent);
            margin-top: 80px;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1.2fr;
            gap: 48px;
            padding: 56px 48px 32px;
            max-width: 1200px;
            margin: 0 auto;
        }
        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .footer-logo strong {
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            line-height: 1.3;
        }
        .footer-logo span {
            color: var(--muted-dark);
            font-size: 10px;
            display: block;
            letter-spacing: 0.5px;
            margin-top: 2px;
        }
        .footer-brand p {
            color: var(--muted-dark);
            font-size: 14px;
            line-height: 1.9;
            margin-top: 16px;
            max-width: 360px;
        }
        .footer-col-title {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 18px;
        }
        .footer-col ul li {
            margin-bottom: 12px;
        }
        .footer-col ul a {
            color: var(--muted-dark);
            text-decoration: none;
            font-size: 14px;
            transition: color 0.2s;
        }
        .footer-col ul a:hover {
            color: #fff;
        }
        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--muted-dark);
            font-size: 14px;
            margin-bottom: 14px;
        }
        .footer-contact svg {
            width: 18px;
            height: 18px;
            color: var(--accent);
            flex-shrink: 0;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 48px;
            font-size: 12px;
            color: var(--muted-dark);
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            max-width: 1200px;
            margin: 0 auto;
        }
        /* 响应式 */
        @media (max-width: 1199px) {
            .sidebar {
                width: var(--sidebar-w-md);
            }
            .sidebar-logo {
                padding: 0 16px;
                justify-content: center;
            }
            .sidebar-logo .logo-text {
                display: none;
            }
            .sidebar-nav-group {
                text-align: center;
                padding-left: 8px;
                padding-right: 8px;
                font-size: 11px;
            }
            .drawer-nav .nav-item {
                justify-content: center;
                padding: 0 4px;
            }
            .drawer-nav .nav-item span {
                display: none;
            }
            .sidebar-footer {
                display: none;
            }
            .main-wrap {
                margin-left: var(--sidebar-w-md);
            }
            .main-content {
                padding: 32px;
            }
            .footer-inner {
                padding: 48px 32px 24px;
                gap: 32px;
            }
            .footer-bottom {
                padding: 16px 32px;
            }
        }
        @media (max-width: 768px) {
            .sidebar {
                display: none;
            }
            .mobile-header {
                display: flex;
            }
            .drawer-overlay {
                display: block;
            }
            .drawer-panel {
                display: block;
            }
            .main-wrap {
                margin-left: 0;
            }
            .main-content {
                padding: 24px 16px;
            }
            .article {
                padding: 28px 20px;
                border-radius: var(--radius);
            }
            .article-title {
                font-size: 26px;
            }
            .article-meta {
                gap: 10px 16px;
                font-size: 13px;
            }
            .related-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .related-posts {
                margin-top: 40px;
                padding-top: 32px;
            }
            .footer {
                margin-top: 48px;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                padding: 40px 24px 24px;
                gap: 32px;
            }
            .footer-bottom {
                padding: 16px 24px;
                flex-direction: column;
                text-align: center;
            }
            .article-return {
                margin-top: 32px;
            }
        }
        @media (max-width: 520px) {
            .main-content {
                padding: 16px 12px;
            }
            .article {
                padding: 24px 16px;
            }
            .breadcrumb {
                font-size: 13px;
            }
            .breadcrumb .current {
                max-width: 180px;
            }
            .related-card .card-body h3 {
                font-size: 15px;
            }
            .btn {
                padding: 0 20px;
                height: 44px;
            }
        }

/* roulang page: category2 */
*,
        *::before,
        *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        :root {
            --bg: #F6F5F0;
            --surface: #FFFFFF;
            --primary: #1E4A44;
            --primary-deep: #142B29;
            --accent: #D4883C;
            --accent-light: #E8B573;
            --text: #1F2A28;
            --text-secondary: #5A6664;
            --text-on-dark: #C6D6D2;
            --text-light: #8FA8A3;
            --border: #E4E1D9;
            --success: #3E7B5A;
            --error: #B5563F;
            --radius: 16px;
            --radius-lg: 24px;
            --radius-sm: 10px;
            --shadow: 0 1px 3px rgba(21, 42, 40, 0.06);
            --shadow-hover: 0 12px 24px rgba(21, 42, 40, 0.10);
            --shadow-dark: 0 18px 40px rgba(0, 0, 0, 0.15);
            --sidebar-width: 240px;
            --sidebar-width-sm: 80px;
            --font: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            font-size: 16px;
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

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

        .app-shell {
            min-height: 100vh;
        }

        /* ===== Sidebar ===== */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: var(--sidebar-width);
            background: var(--primary-deep);
            display: flex;
            flex-direction: column;
            z-index: 100;
            border-right: 1px solid rgba(255, 255, 255, 0.06);
            transition: transform 0.3s ease;
        }

        .sidebar-logo {
            height: 72px;
            display: flex;
            align-items: center;
            padding: 0 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            flex-shrink: 0;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .logo-text strong {
            display: block;
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            line-height: 1.3;
        }

        .logo-text span {
            display: block;
            font-size: 10px;
            letter-spacing: 0.08em;
            color: var(--text-light);
            line-height: 1.2;
        }

        .sidebar-nav-group {
            flex: 1;
            padding: 16px 12px 12px;
            overflow-y: auto;
        }

        .nav-group-label {
            display: block;
            font-size: 12px;
            color: var(--text-light);
            padding: 4px 8px 6px;
            letter-spacing: 0.1em;
        }

        .drawer-nav {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .nav-item {
            display: flex;
            align-items: center;
            gap: 10px;
            height: 44px;
            padding: 0 14px;
            border-radius: var(--radius-sm);
            color: var(--text-on-dark);
            font-size: 15px;
            font-weight: 500;
            transition: background 0.2s ease, color 0.2s ease;
            position: relative;
        }

        .nav-item svg {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
        }

        .nav-item:hover {
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }

        .nav-item.active {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
        }

        .nav-item.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 10px;
            bottom: 10px;
            width: 4px;
            border-radius: 0 2px 2px 0;
            background: var(--accent);
        }

        .sidebar-footer {
            padding: 20px 20px 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 12px;
            color: var(--text-light);
            line-height: 1.6;
            flex-shrink: 0;
        }

        .sidebar-footer p {
            margin: 0;
        }

        /* ===== Main ===== */
        .main-content {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 48px;
            width: 100%;
        }

        /* ===== Mobile topbar ===== */
        .mobile-topbar {
            display: none;
            position: sticky;
            top: 0;
            z-index: 90;
            height: 60px;
            background: #fff;
            border-bottom: 1px solid var(--border);
            padding: 0 20px;
            align-items: center;
            justify-content: space-between;
        }

        .mobile-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 16px;
            font-weight: 700;
            color: var(--primary-deep);
        }

        .hamburger {
            display: flex;
            flex-direction: column;
            gap: 5px;
            padding: 10px;
        }

        .hamburger span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--primary-deep);
            border-radius: 2px;
            transition: transform 0.2s ease, opacity 0.2s ease;
        }

        .hamburger.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .hamburger.open span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .sidebar-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(20, 43, 41, 0.6);
            z-index: 95;
        }

        .sidebar-overlay.open {
            display: block;
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-wrap {
            padding-top: 32px;
            padding-bottom: 0;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-secondary);
        }

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

        .breadcrumb .current {
            color: var(--text);
            font-weight: 500;
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 48px;
            padding: 0 28px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            line-height: 1;
            transition: all 0.2s ease;
            border: 1px solid transparent;
            cursor: pointer;
        }

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

        .btn-primary:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
        }

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

        .btn-primary:focus-visible,
        .btn-outline-light:focus-visible,
        .btn-dark:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .btn-outline-light {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.7);
            color: #fff;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-2px);
        }

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

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

        .btn-block {
            width: 100%;
            height: 52px;
        }

        /* ===== Page hero ===== */
        .page-hero {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            margin: 24px 48px 0;
            min-height: 280px;
            display: flex;
            align-items: center;
            background: var(--primary);
        }

        .page-hero-bg {
            position: absolute;
            inset: 0;
        }

        .page-hero-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .page-hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(30, 74, 68, 0.92) 0%, rgba(20, 43, 41, 0.85) 60%, rgba(20, 43, 41, 0.65) 100%);
        }

        .page-hero-content {
            position: relative;
            z-index: 2;
            padding: 56px 48px;
            color: #fff;
        }

        .page-hero-content h1 {
            font-size: clamp(32px, 4vw, 42px);
            font-weight: 700;
            line-height: 1.25;
            margin-bottom: 16px;
        }

        .page-hero-content p {
            font-size: 17px;
            line-height: 1.8;
            color: var(--text-on-dark);
            max-width: 560px;
            margin-bottom: 28px;
        }

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

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

        .section-head {
            margin-bottom: 48px;
        }

        .section-tag {
            display: inline-block;
            background: rgba(212, 136, 60, 0.12);
            color: var(--accent);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 999px;
            letter-spacing: 0.04em;
            margin-bottom: 16px;
        }

        .section-head h2 {
            font-size: clamp(26px, 3vw, 36px);
            color: var(--text);
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .section-sub {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 640px;
        }

        /* ===== Features ===== */
        .features {
            background: var(--bg);
        }

        .features-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr 0.8fr;
            gap: 24px;
            align-items: stretch;
        }

        .feature-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px 28px;
            transition: all 0.2s ease;
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--accent);
            opacity: 0;
            transition: opacity 0.2s ease;
        }

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

        .feature-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .feature-card-main {
            background: linear-gradient(135deg, var(--primary-deep) 0%, var(--primary) 100%);
            border: none;
            color: #fff;
        }

        .feature-card-main::before {
            display: none;
        }

        .feature-card-main h3 {
            color: #fff;
        }

        .feature-card-main p {
            color: var(--text-on-dark);
        }

        .feature-card svg {
            width: 40px;
            height: 40px;
            color: var(--accent);
            margin-bottom: 20px;
        }

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

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

        /* ===== Reference section ===== */
        .reference-section {
            background: var(--bg);
        }

        .reference-banner {
            border-radius: var(--radius);
            overflow: hidden;
            margin-bottom: 40px;
            max-height: 260px;
        }

        .reference-banner img {
            width: 100%;
            height: 260px;
            object-fit: cover;
        }

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

        .ref-item {
            display: flex;
            align-items: center;
            gap: 24px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px 28px;
            transition: background 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
            min-height: 110px;
        }

        .ref-item:hover {
            background: #FAF8F3;
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .ref-num {
            font-size: 20px;
            font-weight: 700;
            color: var(--accent);
            font-variant-numeric: tabular-nums;
            min-width: 44px;
        }

        .ref-main {
            flex: 1;
        }

        .ref-main h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
        }

        .ref-main p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .ref-arrow {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--bg);
            color: var(--primary);
            transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
            flex-shrink: 0;
        }

        .ref-item:hover .ref-arrow {
            background: var(--primary);
            color: #fff;
            transform: translateX(4px);
        }

        .ref-arrow svg {
            width: 18px;
            height: 18px;
        }

        /* ===== Scenarios ===== */
        .scenarios {
            background: var(--surface);
        }

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

        .scenario-card {
            background: var(--bg);
            border-radius: var(--radius);
            padding: 28px 24px;
            text-align: center;
            transition: all 0.2s ease;
            border: 1px solid transparent;
        }

        .scenario-card:hover {
            border-color: var(--border);
            background: var(--surface);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .scenario-icon {
            width: 56px;
            height: 56px;
            margin: 0 auto 16px;
            border-radius: 14px;
            background: rgba(212, 136, 60, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
        }

        .scenario-icon svg {
            width: 26px;
            height: 26px;
        }

        .scenario-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
        }

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

        /* ===== Process ===== */
        .process {
            background: var(--primary-deep);
        }

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

        .process .section-sub {
            color: var(--text-on-dark);
        }

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

        .process-step {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius);
            padding: 32px 28px;
            transition: background 0.2s ease, transform 0.2s ease;
        }

        .process-step:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-3px);
        }

        .step-num {
            display: block;
            font-size: 28px;
            font-weight: 700;
            color: var(--accent);
            font-variant-numeric: tabular-nums;
            margin-bottom: 16px;
        }

        .process-step h3 {
            font-size: 17px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 10px;
        }

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

        /* ===== FAQ ===== */
        .faq {
            background: var(--bg);
        }

        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .faq-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 12px;
            overflow: hidden;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .faq-card[open] {
            border-color: var(--primary);
            box-shadow: var(--shadow-hover);
        }

        .faq-card summary {
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 0 20px;
            min-height: 48px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            transition: color 0.2s ease;
        }

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

        .faq-card summary::after {
            content: '+';
            font-size: 22px;
            font-weight: 400;
            color: var(--primary);
            line-height: 1;
            transition: transform 0.2s ease;
            flex-shrink: 0;
        }

        .faq-card[open] summary {
            color: var(--primary);
        }

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

        .faq-content {
            padding: 0 20px 20px;
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-secondary);
        }

        .faq-content p {
            margin: 0;
        }

        /* ===== CTA ===== */
        .cta {
            padding-top: 0;
            padding-bottom: 80px;
        }

        .cta-card {
            background: linear-gradient(135deg, var(--accent-light) 0%, var(--accent) 100%);
            border-radius: var(--radius-lg);
            padding: 48px 32px;
            text-align: center;
        }

        .cta-card h2 {
            font-size: 28px;
            font-weight: 700;
            color: #2A2017;
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .cta-card p {
            font-size: 16px;
            color: #4A3826;
            margin-bottom: 28px;
        }

        .cta-card .btn-dark {
            margin-bottom: 16px;
        }

        .privacy-note {
            font-size: 12px;
            color: rgba(74, 56, 38, 0.75);
            line-height: 1.6;
        }

        .privacy-note a {
            color: #4A3826;
            text-decoration: underline;
        }

        .privacy-note a:hover {
            color: #2A2017;
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--primary-deep);
            border-top: 2px solid var(--accent);
        }

        .footer-inner {
            max-width: 1200px;
            margin: 0 auto;
            padding: 56px 48px 32px;
            display: grid;
            grid-template-columns: 1.4fr 0.8fr 1fr;
            gap: 48px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 16px;
        }

        .footer-logo strong {
            display: block;
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            line-height: 1.3;
        }

        .footer-logo span {
            display: block;
            font-size: 10px;
            letter-spacing: 0.08em;
            color: var(--text-light);
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: #AFC3BF;
            max-width: 360px;
        }

        .footer-col-title {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-col ul {
            list-style: none;
        }

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

        .footer-col ul li a {
            font-size: 14px;
            color: #AFC3BF;
            transition: color 0.2s ease;
        }

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

        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: #AFC3BF;
        }

        .footer-contact svg {
            width: 18px;
            height: 18px;
            flex-shrink: 0;
            color: var(--accent-light);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 12px;
            color: var(--text-light);
        }

        /* ===== Modal ===== */
        .modal-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(20, 43, 41, 0.55);
            z-index: 200;
            justify-content: center;
            align-items: center;
            padding: 24px;
        }

        .modal-overlay.active {
            display: flex;
        }

        .modal-card {
            background: #fff;
            border-radius: 20px;
            width: 100%;
            max-width: 520px;
            overflow: hidden;
            box-shadow: var(--shadow-dark);
        }

        .modal-header {
            background: var(--primary-deep);
            padding: 20px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .modal-header h3 {
            color: #fff;
            font-size: 18px;
            font-weight: 600;
        }

        .modal-close {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            background: rgba(255, 255, 255, 0.1);
            transition: background 0.2s ease;
        }

        .modal-close:hover {
            background: rgba(255, 255, 255, 0.2);
        }

        .modal-close svg {
            width: 18px;
            height: 18px;
        }

        .modal-body {
            padding: 32px;
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
        }

        .form-group input,
        .form-group textarea {
            width: 100%;
            height: 48px;
            border: 1px solid #D8D3C8;
            border-radius: var(--radius-sm);
            background: #FAF9F5;
            padding: 0 16px;
            font-size: 15px;
            font-family: inherit;
            color: var(--text);
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
            outline: none;
        }

        .form-group textarea {
            height: auto;
            min-height: 120px;
            padding: 12px 16px;
            resize: vertical;
        }

        .form-group input:focus,
        .form-group textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(30, 74, 68, 0.15);
        }

        .form-group input::placeholder,
        .form-group textarea::placeholder {
            color: #A8A29A;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1199px) {
            .sidebar {
                width: var(--sidebar-width-sm);
            }

            .sidebar-logo {
                justify-content: center;
                padding: 0;
            }

            .logo-text {
                display: none !important;
            }

            .nav-group-label {
                text-align: center;
                padding: 4px 0 6px;
                font-size: 10px;
            }

            .nav-item {
                justify-content: center;
                padding: 0 8px;
            }

            .nav-item span {
                display: none;
            }

            .nav-item.active::before {
                top: 8px;
                bottom: 8px;
            }

            .sidebar-footer {
                text-align: center;
                padding: 16px 8px;
                font-size: 10px;
            }

            .main-content {
                margin-left: var(--sidebar-width-sm);
            }

            .page-hero {
                margin: 24px 32px 0;
            }

            .container {
                padding: 0 32px;
            }

            .footer-inner {
                padding: 48px 32px 24px;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .sidebar {
                transform: translateX(-100%);
                width: 280px;
            }

            .sidebar.open {
                transform: translateX(0);
            }

            .sidebar-logo {
                justify-content: flex-start;
                padding: 0 20px;
            }

            .logo-text {
                display: block !important;
            }

            .nav-group-label {
                text-align: left;
                padding: 4px 8px 6px;
                font-size: 12px;
            }

            .nav-item {
                justify-content: flex-start;
                padding: 0 14px;
            }

            .nav-item span {
                display: inline;
            }

            .sidebar-footer {
                text-align: left;
                padding: 16px 20px;
                font-size: 12px;
            }

            .main-content {
                margin-left: 0;
            }

            .mobile-topbar {
                display: flex;
            }

            .breadcrumb-wrap {
                padding-top: 24px;
            }

            .page-hero {
                margin: 16px 16px 0;
                min-height: 240px;
            }

            .page-hero-content {
                padding: 40px 24px;
            }

            .page-hero-content h1 {
                font-size: 30px;
            }

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

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

            .container {
                padding: 0 16px;
            }

            .section {
                padding: 48px 0;
            }

            .section-head {
                margin-bottom: 32px;
            }

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

            .feature-card-main {
                order: -1;
            }

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

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

            .process-step {
                padding: 24px;
            }

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

            .footer-inner {
                grid-template-columns: 1fr;
                padding: 40px 16px 24px;
                gap: 32px;
            }

            .footer-bottom {
                padding: 16px;
                flex-direction: column;
                gap: 8px;
                text-align: center;
            }

            .footer-col-title {
                margin-bottom: 12px;
            }
        }

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

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

            .ref-item {
                padding: 20px 16px;
                gap: 16px;
            }

            .ref-num {
                min-width: 32px;
                font-size: 18px;
            }

            .ref-arrow {
                width: 32px;
                height: 32px;
            }

            .reference-banner img {
                height: 180px;
            }

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

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

            .modal-body {
                padding: 24px;
            }
        }