/* roulang page: index */
:root {
  --primary: #2A6DF5;
  --primary-dark: #1B4FD6;
  --primary-light: #E9F0FE;
  --accent: #FF8A3D;
  --accent-dark: #F06A1B;
  --accent-light: #FFF1E6;
  --success: #18B27A;
  --text: #1B2A41;
  --text-muted: #64748B;
  --text-light: #8FA1B8;
  --bg: #F5F8FC;
  --bg-white: #FFFFFF;
  --bg-dark: #0F1B33;
  --border: #E6EBF3;
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 8px rgba(27,42,65,.06);
  --shadow-md: 0 8px 24px rgba(27,42,65,.08);
  --shadow-lg: 0 16px 40px rgba(27,42,65,.12);
  --transition: all .3s cubic-bezier(.4,0,.2,1);
  --container-max: 1160px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; padding: 0; margin: 0; }
button, input { font-family: inherit; }
.container { max-width: var(--container-max); margin: 0 auto; padding: 0 20px; width: 100%; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  line-height: 1.4;
}
.btn-sm { padding: 8px 16px; font-size: 14px; }
.btn-lg { padding: 14px 30px; font-size: 16px; border-radius: 14px; }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 6px 16px rgba(42,109,245,.28); }
.btn-primary:hover, .btn-primary:focus { background: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 10px 24px rgba(42,109,245,.34); }
.btn-outline-light { background: transparent; color: #fff; border: 1.5px solid rgba(255,255,255,.7); }
.btn-outline-light:hover { background: rgba(255,255,255,.14); color: #fff; border-color: #fff; }
.btn-light { background: #fff; color: var(--primary); box-shadow: 0 6px 16px rgba(0,0,0,.14); }
.btn-light:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(0,0,0,.2); color: var(--primary-dark); }
.btn-ghost { background: rgba(255,255,255,.12); color: #fff; border: 1.5px solid rgba(255,255,255,.6); }
.btn-ghost:hover { background: rgba(255,255,255,.22); color: #fff; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,.94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.main-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: 70px;
  flex-wrap: nowrap;
}
.brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-icon {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary), #6FA1FF);
  color: #fff;
  font-size: 18px;
  box-shadow: 0 6px 16px rgba(42,109,245,.3);
}
.brand-text { font-size: 19px; font-weight: 700; color: var(--text); letter-spacing: .5px; white-space: nowrap; }
.nav-links { display: flex; gap: 4px; margin: 0; }
.nav-link {
  display: inline-block;
  padding: 9px 16px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-muted);
  white-space: nowrap;
}
.nav-link:hover { color: var(--primary); background: var(--primary-light); }
.nav-link.active { color: var(--primary); background: var(--primary-light); font-weight: 600; }
.nav-actions { display: flex; align-items: center; gap: 14px; }
.search-box {
  display: flex;
  align-items: center;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 6px 4px 16px;
  height: 40px;
  width: 220px;
  transition: var(--transition);
}
.search-box:focus-within { border-color: var(--primary); background: #fff; box-shadow: 0 0 0 4px rgba(42,109,245,.1); }
.search-box input {
  border: none;
  outline: none;
  background: transparent;
  flex: 1;
  font-size: 14px;
  color: var(--text);
  min-width: 0;
}
.search-box input::placeholder { color: var(--text-light); }
.search-box button {
  width: 30px;
  height: 30px;
  border: none;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  cursor: pointer;
  transition: var(--transition);
  flex-shrink: 0;
}
.search-box button:hover { background: var(--primary-dark); }
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  flex-shrink: 0;
  padding: 0;
}
.nav-toggle .bar { width: 20px; height: 2px; background: var(--text); border-radius: 4px; transition: var(--transition); }
.nav-toggle.active .bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active .bar:nth-child(2) { opacity: 0; }
.nav-toggle.active .bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.hero {
  position: relative;
  background-image: linear-gradient(135deg, rgba(12,25,50,.74), rgba(20,45,90,.58)), url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  padding: 110px 0 100px;
  color: #fff;
  text-align: center;
}
.hero .container { position: relative; z-index: 2; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 18px;
  border-radius: 999px;
  background: rgba(255,255,255,.14);
  border: 1px solid rgba(255,255,255,.26);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 1px;
  color: #fff;
}
.hero-badge i { color: var(--accent); }
.hero h1 {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.25;
  margin: 24px 0 18px;
  letter-spacing: 1px;
  text-shadow: 0 4px 28px rgba(0,0,0,.28);
}
.hero-subtitle {
  max-width: 660px;
  margin: 0 auto;
  font-size: 17px;
  color: rgba(255,255,255,.88);
  line-height: 1.8;
}
.hero-buttons { display: flex; justify-content: center; gap: 14px; margin-top: 36px; flex-wrap: wrap; }
.hero-stats {
  display: flex;
  justify-content: center;
  gap: 0;
  margin-top: 60px;
  padding-top: 36px;
  border-top: 1px solid rgba(255,255,255,.18);
}
.hero-stats .stat { flex: 1; max-width: 220px; text-align: center; }
.hero-stats .stat + .stat { border-left: 1px solid rgba(255,255,255,.18); }
.stat-num { display: block; font-size: 34px; font-weight: 800; color: #fff; line-height: 1.2; }
.stat-label { display: block; font-size: 13px; color: rgba(255,255,255,.72); margin-top: 4px; }
.features-section { padding: 90px 0; }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 48px; }
.section-tag {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 999px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
}
.section-head h2 { font-size: 34px; font-weight: 800; margin: 18px 0 12px; line-height: 1.3; color: var(--text); }
.section-head p { font-size: 16px; color: var(--text-muted); line-height: 1.7; margin: 0; }
.feature-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 30px 24px;
  height: 100%;
  transition: var(--transition);
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: transparent; }
.feature-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 22px;
  margin-bottom: 18px;
}
.feature-icon.icon-accent { background: var(--accent-light); color: var(--accent); }
.feature-icon.icon-green { background: #E5F7EF; color: var(--success); }
.feature-icon.icon-purple { background: #F0EBFF; color: #7B61FF; }
.feature-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; color: var(--text); }
.feature-card p { font-size: 14px; color: var(--text-muted); line-height: 1.7; margin: 0; }
.category-section { padding: 90px 0; background: var(--bg-white); }
.category-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--transition);
}
.category-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: transparent; }
.category-card-img { position: relative; overflow: hidden; }
.category-card-img img { width: 100%; height: 220px; object-fit: cover; transition: transform .5s ease; }
.category-card:hover .category-card-img img { transform: scale(1.05); }
.category-card-main .category-card-img img { height: 340px; }
.category-card-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.badge-cat {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  padding: 5px 12px;
  border-radius: 999px;
  background: var(--accent-light);
  color: var(--accent-dark);
  font-size: 12px;
  font-weight: 600;
}
.category-card-body h3 { font-size: 20px; font-weight: 700; margin: 14px 0 10px; color: var(--text); }
.category-card-body p { font-size: 14px; color: var(--text-muted); line-height: 1.7; flex: 1; margin: 0; }
.cat-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  font-weight: 600;
  font-size: 14px;
  margin-top: 16px;
}
.category-card:hover .cat-link { gap: 14px; }
.content-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: var(--transition);
}
.content-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: transparent; }
.content-card img { width: 100%; height: 150px; object-fit: cover; }
.content-card-body { padding: 20px; }
.content-card-body h4 { font-size: 17px; font-weight: 700; margin-bottom: 8px; color: var(--text); }
.content-card-body p { font-size: 14px; color: var(--text-muted); line-height: 1.6; margin: 0; }
.news-section { padding: 90px 0; }
.news-card {
  display: flex;
  align-items: stretch;
  gap: 16px;
  height: 100%;
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  transition: var(--transition);
}
.news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: transparent; }
.news-card-content { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.news-card-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 12px; }
.news-cat {
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-light);
  padding: 4px 12px;
  border-radius: 999px;
  white-space: nowrap;
}
.news-date { font-size: 13px; color: var(--text-light); white-space: nowrap; }
.news-card h3 {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  color: var(--text);
}
.news-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}
.news-more { font-size: 13px; font-weight: 600; color: var(--primary); display: inline-flex; align-items: center; gap: 6px; }
.news-card:hover .news-more { gap: 12px; }
.news-card-thumb { width: 170px; flex-shrink: 0; border-radius: var(--radius-md); overflow: hidden; background: var(--primary-light); }
.news-card-thumb img { width: 100%; height: 100%; object-fit: cover; min-height: 130px; }
.empty-box {
  text-align: center;
  padding: 60px 20px;
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  border: 1px dashed var(--border);
  color: var(--text-muted);
  font-size: 16px;
}
.stats-section {
  padding: 80px 0;
  background: linear-gradient(120deg, #0F1B33, #1A2E55, #13315F);
  color: #fff;
}
.stats-inner { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; text-align: center; }
.stat-icon { font-size: 30px; color: rgba(255,255,255,.7); margin-bottom: 10px; }
.counter { display: block; font-size: 36px; font-weight: 800; color: #fff; }
.stats-inner .stat-label { display: block; font-size: 14px; color: rgba(255,255,255,.72); margin-top: 4px; }
.process-section { padding: 90px 0; background: var(--bg-white); }
.process-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.process-step {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  transition: var(--transition);
}
.process-step:hover { background: var(--bg-white); box-shadow: var(--shadow-md); border-color: transparent; transform: translateY(-4px); }
.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 16px;
  font-weight: 800;
  margin-bottom: 16px;
}
.process-step h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; color: var(--text); }
.process-step p { font-size: 14px; color: var(--text-muted); line-height: 1.6; margin: 0; }
.showcase-section { padding: 90px 0; }
.showcase-image { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); }
.showcase-image img { width: 100%; height: 380px; object-fit: cover; }
.showcase-content .section-tag { margin-bottom: 16px; }
.showcase-content h2 { font-size: 32px; font-weight: 800; line-height: 1.3; margin-bottom: 16px; color: var(--text); }
.showcase-content p { font-size: 16px; color: var(--text-muted); line-height: 1.8; }
.check-list { margin: 22px 0 28px; }
.check-list li { display: flex; align-items: center; gap: 10px; padding: 7px 0; font-size: 15px; color: var(--text); }
.check-list li i { color: var(--success); font-size: 18px; flex-shrink: 0; }
.faq-section { padding: 90px 0; background: var(--bg-white); }
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 16px; }
.faq-item { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 24px 28px; transition: var(--transition); }
.faq-item:hover { background: var(--bg-white); box-shadow: var(--shadow-md); border-color: transparent; }
.faq-item h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; color: var(--text); display: flex; align-items: center; gap: 10px; }
.faq-item h3::before {
  content: "Q";
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 50%;
  font-size: 12px;
  font-weight: 800;
}
.faq-item p { margin: 0 0 0 34px; font-size: 14px; color: var(--text-muted); line-height: 1.75; }
.cta-section { padding: 90px 0; }
.cta-inner {
  background: linear-gradient(135deg, var(--primary), #4C8DFF);
  border-radius: 24px;
  padding: 60px;
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(42,109,245,.3);
}
.cta-inner::before { content: ""; position: absolute; width: 260px; height: 260px; border-radius: 50%; background: rgba(255,255,255,.08); top: -100px; right: -60px; }
.cta-inner::after { content: ""; position: absolute; width: 160px; height: 160px; border-radius: 50%; background: rgba(255,255,255,.06); bottom: -60px; left: -20px; }
.cta-inner h2 { position: relative; z-index: 1; font-size: 30px; font-weight: 800; margin-bottom: 12px; }
.cta-inner p { position: relative; z-index: 1; font-size: 16px; color: rgba(255,255,255,.88); max-width: 560px; margin: 0 auto 28px; }
.cta-buttons { position: relative; z-index: 1; display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }
.site-footer { background: var(--bg-dark); color: rgba(255,255,255,.72); padding: 70px 0 0; }
.footer-top { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 50px; }
.footer-brand h3 { font-size: 20px; color: #fff; font-weight: 700; margin-bottom: 12px; }
.footer-brand p { font-size: 14px; line-height: 1.8; color: rgba(255,255,255,.58); max-width: 250px; margin: 0; }
.footer-nav h4, .footer-info h4 { font-size: 15px; color: #fff; font-weight: 600; margin-bottom: 16px; }
.footer-nav ul li { margin-bottom: 8px; }
.footer-nav ul li a { color: rgba(255,255,255,.62); font-size: 14px; transition: var(--transition); }
.footer-nav ul li a:hover { color: #fff; padding-left: 4px; }
.footer-info p { font-size: 14px; color: rgba(255,255,255,.52); line-height: 1.8; margin-bottom: 8px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,.45);
}
.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  border: none;
  font-size: 16px;
  box-shadow: 0 8px 20px rgba(42,109,245,.3);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition);
  z-index: 999;
}
.back-to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { background: var(--primary-dark); transform: translateY(-3px); }
@media (max-width: 1024px) {
  .search-box { width: 180px; }
  .hero h1 { font-size: 40px; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 991px) {
  .main-nav { flex-wrap: wrap; height: auto; padding: 14px 0; }
  .nav-toggle { display: flex; order: 2; margin-left: auto; }
  .brand { order: 1; }
  .nav-links { order: 3; display: none; width: 100%; flex-direction: column; gap: 4px; padding-top: 12px; }
  .nav-links.open { display: flex; }
  .nav-actions { order: 4; display: none; width: 100%; flex-direction: column; align-items: stretch; gap: 12px; padding-top: 12px; }
  .nav-actions.open { display: flex; }
  .search-box { width: 100%; }
  .nav-actions .btn { justify-content: center; }
  .nav-link { padding: 12px; border-radius: var(--radius-md); text-align: center; }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .showcase-image img { height: 300px; }
}
@media (max-width: 768px) {
  .hero { padding: 70px 0 60px; }
  .hero h1 { font-size: 32px; }
  .hero-subtitle { font-size: 15px; }
  .hero-buttons .btn { padding: 12px 20px; font-size: 15px; }
  .hero-stats { flex-wrap: wrap; gap: 20px; margin-top: 40px; padding-top: 28px; }
  .hero-stats .stat { flex: 0 0 46%; max-width: 46%; border-left: none !important; }
  .section-head h2 { font-size: 28px; }
  .features-section, .category-section, .news-section, .showcase-section, .faq-section { padding: 64px 0; }
  .process-section { padding: 64px 0; }
  .cta-section { padding: 64px 0; }
  .cta-inner { padding: 40px 24px; }
  .cta-inner h2 { font-size: 24px; }
  .cta-inner p { font-size: 15px; }
  .stats-inner { grid-template-columns: repeat(2, 1fr); gap: 30px 20px; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 30px; }
  .showcase-content h2 { font-size: 26px; }
  .category-card-main .category-card-img img { height: 240px; }
}
@media (max-width: 575px) {
  .brand-text { font-size: 16px; }
  .hero h1 { font-size: 26px; letter-spacing: 0; }
  .hero-subtitle { font-size: 14px; }
  .search-box { width: 100%; }
  .stats-inner { grid-template-columns: 1fr 1fr; }
  .process-steps { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .news-card { flex-direction: column; }
  .news-card-thumb { width: 100%; height: 160px; order: -1; }
  .news-card-thumb img { min-height: auto; }
  .cta-inner { padding: 32px 20px; border-radius: 18px; }
  .cta-inner h2 { font-size: 22px; }
  .cta-buttons .btn { width: 100%; }
  .back-to-top { right: 16px; bottom: 16px; }
}

/* roulang page: category1 */
:root{
  --primary:#22c55e;
  --primary-dark:#16a34a;
  --primary-light:#dcfce7;
  --accent:#f59e0b;
  --accent-light:#fef3c7;
  --bg:#f8fafc;
  --bg-alt:#ffffff;
  --text:#1e293b;
  --text-weak:#64748b;
  --border:#e2e8f0;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 4px 24px rgba(15,23,42,.06);
  --shadow-md:0 8px 30px rgba(15,23,42,.08);
  --shadow-lg:0 16px 48px rgba(15,23,42,.12);
  --transition:all .25s ease;
}
*,*::before,*::after{box-sizing:border-box}
body{
  font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",system-ui,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
.container{max-width:1200px}
a{text-decoration:none;color:inherit;transition:var(--transition)}
img{max-width:100%;display:block}
h1,h2,h3,h4,h5,h6{font-weight:700;letter-spacing:-.01em;line-height:1.3}
p{margin:0 0 1rem}
:focus{outline:3px solid rgba(34,197,94,.35);outline-offset:2px}

/* header */
.site-header{
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
  position:sticky;
  top:0;
  z-index:1040;
}
.main-nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:72px;
  gap:20px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-icon{
  width:42px;height:42px;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  color:#fff;
  font-size:19px;
  box-shadow:0 4px 14px rgba(34,197,94,.35);
}
.brand-text{
  font-weight:800;
  font-size:19px;
  white-space:nowrap;
  background:linear-gradient(120deg,var(--primary-dark),var(--primary));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.nav-toggle{
  display:none;
  flex-direction:column;
  gap:5px;
  background:none;border:none;
  padding:8px;border-radius:8px;
  cursor:pointer;
}
.nav-toggle .bar{
  width:22px;height:2px;
  background:var(--text);
  border-radius:2px;
  transition:var(--transition);
}
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  list-style:none;
  margin:0;padding:0;
}
.nav-link{
  padding:8px 14px;
  border-radius:999px;
  font-weight:600;
  color:var(--text);
  font-size:15px;
  white-space:nowrap;
}
.nav-link:hover{background:var(--primary-light);color:var(--primary-dark)}
.nav-link.active{background:var(--primary);color:#fff;box-shadow:0 4px 14px rgba(34,197,94,.3)}
.nav-actions{
  display:flex;
  align-items:center;
  gap:12px;
}
.search-box{
  display:flex;
  align-items:center;
  background:var(--bg);
  border:1px solid var(--border);
  border-radius:999px;
  padding:5px 6px 5px 16px;
  transition:var(--transition);
  width:230px;
}
.search-box:focus-within{border-color:var(--primary);background:#fff;box-shadow:0 0 0 4px rgba(34,197,94,.1)}
.search-box input{
  border:none;background:none;outline:none;
  width:100%;
  font-size:14px;
  color:var(--text);
}
.search-box input::placeholder{color:var(--text-weak)}
.search-box button{
  width:34px;height:34px;
  border:none;border-radius:50%;
  background:var(--primary);
  color:#fff;
  display:flex;align-items:center;justify-content:center;
  flex-shrink:0;
  transition:var(--transition);
}
.search-box button:hover{background:var(--primary-dark)}
.btn{
  border-radius:999px;
  font-weight:600;
  padding:10px 24px;
  transition:var(--transition);
  border:2px solid transparent;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:#fff;
  box-shadow:0 4px 16px rgba(34,197,94,.3);
}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 8px 24px rgba(34,197,94,.4)}
.btn-outline{border-color:var(--primary);color:var(--primary-dark);background:transparent}
.btn-outline:hover{background:var(--primary-light)}
.btn-sm{padding:7px 18px;font-size:14px}
.btn-lg{padding:14px 32px;font-size:16px}

/* hero */
.category-hero{
  position:relative;
  padding:90px 0 80px;
  color:#fff;
  background:
    linear-gradient(rgba(15,23,42,.7),rgba(22,101,52,.55)),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  border-radius:0 0 40px 40px;
  overflow:hidden;
}
.category-hero::after{
  content:'';
  position:absolute;
  bottom:-60px;right:-60px;
  width:260px;height:260px;
  background:rgba(255,255,255,.06);
  border-radius:50%;
}
.category-hero .container{position:relative;z-index:2}
.category-hero .hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(255,255,255,.15);
  border:1px solid rgba(255,255,255,.25);
  backdrop-filter:blur(6px);
  border-radius:999px;
  padding:6px 18px;
  font-size:14px;
  margin-bottom:22px;
}
.category-hero h1{
  font-size:46px;
  font-weight:800;
  margin-bottom:16px;
  max-width:700px;
  line-height:1.2;
}
.category-hero p{
  font-size:18px;
  color:rgba(255,255,255,.9);
  max-width:640px;
  margin-bottom:28px;
}
.hero-stats{
  display:flex;
  gap:40px;
  margin-top:40px;
  flex-wrap:wrap;
}
.hero-stats .stat{
  text-align:center;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.2);
  border-radius:16px;
  padding:16px 28px;
  backdrop-filter:blur(4px);
  min-width:130px;
}
.hero-stats .stat .num{
  font-size:30px;font-weight:800;
  color:#fff;
  display:block;
}
.hero-stats .stat .label{
  font-size:13px;
  color:rgba(255,255,255,.8);
}

/* section spacing */
.section{padding:80px 0}
.section-header{
  text-align:center;
  max-width:700px;
  margin:0 auto 48px;
}
.section-header .tag{
  display:inline-block;
  background:var(--primary-light);
  color:var(--primary-dark);
  font-size:13px;
  font-weight:700;
  padding:5px 16px;
  border-radius:999px;
  margin-bottom:12px;
  text-transform:uppercase;
  letter-spacing:.04em;
}
.section-header h2{font-size:34px;font-weight:800;margin-bottom:12px}
.section-header p{color:var(--text-weak);font-size:16px}

/* guide intro */
.guide-intro{padding:80px 0}
.intro-box{
  background:#fff;
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  overflow:hidden;
  height:100%;
  border:1px solid var(--border);
  transition:var(--transition);
}
.intro-box:hover{box-shadow:var(--shadow-md);transform:translateY(-4px)}
.intro-box .cover{
  height:200px;
  overflow:hidden;
}
.intro-box .cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.intro-box:hover .cover img{transform:scale(1.05)}
.intro-box .content{padding:28px}
.intro-box .content h3{font-size:20px;margin-bottom:10px}
.intro-box .content p{color:var(--text-weak);font-size:14px;margin-bottom:0}

/* entry cards */
.entry-cards{padding:80px 0;background:#fff}
.entry-grid{gap:24px}
.entry-card{
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:30px 28px;
  background:var(--bg-alt);
  height:100%;
  transition:var(--transition);
  position:relative;
  overflow:hidden;
}
.entry-card::before{
  content:'';
  position:absolute;
  top:0;left:0;
  width:100%;height:4px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  opacity:0;
  transition:var(--transition);
}
.entry-card:hover{box-shadow:var(--shadow-md);transform:translateY(-4px);border-color:var(--primary)}
.entry-card:hover::before{opacity:1}
.entry-card .card-icon{
  width:52px;height:52px;
  border-radius:14px;
  background:var(--primary-light);
  color:var(--primary-dark);
  display:flex;align-items:center;justify-content:center;
  font-size:22px;
  margin-bottom:18px;
}
.entry-card h3{font-size:19px;margin-bottom:10px}
.entry-card p{color:var(--text-weak);font-size:14px;flex-grow:1}
.entry-card .card-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--primary-dark);
  font-weight:700;
  font-size:14px;
  margin-top:12px;
}
.entry-card .card-link:hover{gap:10px}

/* steps */
.steps-section{padding:80px 0}
.step-item{
  text-align:center;
  padding:28px 20px;
  position:relative;
}
.step-num{
  width:56px;height:56px;
  margin:0 auto 16px;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:#fff;
  font-size:22px;
  font-weight:800;
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 20px rgba(34,197,94,.35);
}
.step-item h4{font-size:17px;margin-bottom:8px}
.step-item p{font-size:14px;color:var(--text-weak);max-width:260px;margin:0 auto}

/* guides list */
.guides-list{padding:80px 0;background:#fff}
.guide-post{
  display:flex;
  gap:24px;
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:20px;
  margin-bottom:20px;
  transition:var(--transition);
  align-items:flex-start;
}
.guide-post:hover{box-shadow:var(--shadow-md);border-color:var(--primary);transform:translateX(4px)}
.guide-post .thumb{
  width:120px;height:90px;
  border-radius:12px;
  overflow:hidden;
  flex-shrink:0;
}
.guide-post .thumb img{width:100%;height:100%;object-fit:cover}
.guide-post .body{flex:1}
.guide-post .meta{
  display:flex;align-items:center;gap:12px;
  font-size:13px;
  color:var(--text-weak);
  margin-bottom:6px;
}
.guide-post .meta .badge{
  background:var(--primary-light);
  color:var(--primary-dark);
  padding:2px 12px;
  border-radius:999px;
  font-weight:600;
}
.guide-post h3{font-size:18px;margin-bottom:6px}
.guide-post h3 a:hover{color:var(--primary)}
.guide-post p{font-size:14px;color:var(--text-weak);margin:0}

/* faq */
.faq-section{padding:80px 0}
.accordion-item{
  border:1px solid var(--border)!important;
  border-radius:var(--radius)!important;
  margin-bottom:14px;
  overflow:hidden;
  box-shadow:var(--shadow);
}
.accordion-button{
  font-weight:700;
  font-size:16px;
  color:var(--text);
  padding:20px 24px;
  background:#fff;
}
.accordion-button:not(.collapsed){
  background:var(--primary-light);
  color:var(--primary-dark);
}
.accordion-button:focus{box-shadow:none;border-color:var(--primary)}
.accordion-body{
  padding:20px 24px;
  color:var(--text-weak);
  font-size:15px;
}

/* cta */
.cta-section{padding:80px 0}
.cta-box{
  background:linear-gradient(120deg,var(--primary-dark),var(--primary) 45%,#4ade80);
  border-radius:24px;
  padding:60px 48px;
  color:#fff;
  text-align:center;
  position:relative;
  overflow:hidden;
  box-shadow:0 20px 60px rgba(22,163,74,.35);
}
.cta-box::before{
  content:'';
  position:absolute;
  top:-40px;right:-40px;
  width:180px;height:180px;
  background:rgba(255,255,255,.08);
  border-radius:50%;
}
.cta-box::after{
  content:'';
  position:absolute;
  bottom:-20px;left:10%;
  width:120px;height:120px;
  background:rgba(255,255,255,.06);
  border-radius:50%;
}
.cta-box h2{font-size:32px;font-weight:800;margin-bottom:12px}
.cta-box p{color:rgba(255,255,255,.9);max-width:560px;margin:0 auto 28px}

/* footer */
.site-footer{
  background:linear-gradient(140deg,#0f172a,#14532d);
  color:#cbd5e1;
  padding-top:64px;
}
.footer-top{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand h3{
  font-size:20px;
  color:#fff;
  margin-bottom:12px;
  background:linear-gradient(120deg,#4ade80,#fff);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.footer-brand p{font-size:14px;color:#94a3b8;max-width:280px}
.footer-nav h4{
  font-size:15px;
  color:#fff;
  margin-bottom:16px;
}
.footer-nav ul{list-style:none;padding:0;margin:0}
.footer-nav li{margin-bottom:10px}
.footer-nav a{
  color:#94a3b8;
  font-size:14px;
}
.footer-nav a:hover{color:#4ade80}
.footer-info p{
  font-size:13px;
  color:#94a3b8;
  margin-bottom:8px;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:20px 0;
  text-align:center;
  font-size:13px;
  color:#64748b;
}

/* responsive */
@media (max-width:992px){
  .main-nav{flex-wrap:wrap}
  .nav-actions{order:3;width:100%;justify-content:flex-end}
  .search-box{width:100%}
  .category-hero h1{font-size:36px}
  .footer-top{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .nav-toggle{display:flex}
  .nav-links{
    display:none;
    width:100%;
    order:4;
    flex-direction:column;
    gap:0;
    padding:12px 0;
  }
  .nav-links.open{display:flex}
  .nav-links .nav-link{
    display:block;
    width:100%;
    border-radius:10px;
    padding:12px 16px;
  }
  .category-hero{padding:60px 0 50px}
  .category-hero h1{font-size:30px}
  .hero-stats{gap:16px}
  .hero-stats .stat{min-width:100px;padding:12px 16px}
  .hero-stats .stat .num{font-size:24px}
  .section{padding:60px 0}
  .guide-post{flex-direction:column}
  .guide-post .thumb{width:100%;height:180px}
  .footer-top{grid-template-columns:1fr}
}
@media (max-width:520px){
  .brand-text{font-size:16px}
  .category-hero h1{font-size:26px}
  .category-hero p{font-size:16px}
  .hero-stats .stat{min-width:90px}
  .hero-stats .stat .num{font-size:20px}
  .section-header h2{font-size:26px}
  .cta-box{padding:40px 24px}
  .cta-box h2{font-size:24px}
  .btn-lg{padding:12px 24px;font-size:15px}
}

/* roulang page: article */
:root {
  --primary: #2d9b5c;
  --primary-dark: #1e7a44;
  --primary-light: #e6f5ec;
  --accent: #f5a623;
  --accent-dark: #d98f16;
  --accent-light: #fef4e2;
  --dark: #142a1d;
  --dark-soft: #1f3d2e;
  --bg: #f5faf7;
  --card-bg: #ffffff;
  --text: #1f2933;
  --text-light: #6b7a75;
  --border: #e2ece6;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --shadow: 0 8px 30px rgba(21, 43, 30, 0.08);
  --shadow-lg: 0 16px 48px rgba(21, 43, 30, 0.14);
  --transition: all 0.3s ease;
  --header-height: 76px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

button, input {
  font-family: inherit;
}

.container {
  max-width: 1200px;
  padding-left: 20px;
  padding-right: 20px;
}

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1080;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 4px 24px rgba(21, 43, 30, 0.05);
}

.main-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: var(--header-height);
  padding: 12px 0;
}

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

.brand-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), #45c67b);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  box-shadow: 0 6px 16px rgba(45, 155, 92, 0.3);
}

.brand-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.brand:hover .brand-icon {
  transform: rotate(-8deg) scale(1.05);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 46px;
  height: 46px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: #fff;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  padding: 0;
  transition: var(--transition);
}

.nav-toggle .bar {
  display: block;
  width: 20px;
  height: 2.4px;
  border-radius: 4px;
  background: var(--primary);
  transition: var(--transition);
}

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

.nav-toggle:focus {
  outline: 3px solid rgba(45, 155, 92, 0.35);
  outline-offset: 2px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  display: inline-block;
  padding: 9px 18px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  transition: var(--transition);
}

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

.nav-link.active {
  color: #fff;
  background: var(--primary);
  box-shadow: 0 4px 14px rgba(45, 155, 92, 0.28);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.search-box {
  display: flex;
  align-items: center;
  background: #f1f6f3;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 4px 4px 18px;
  transition: var(--transition);
}

.search-box:focus-within {
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(45, 155, 92, 0.12);
}

.search-box input {
  width: 180px;
  background: transparent;
  border: none;
  outline: none;
  font-size: 14px;
  color: var(--text);
  padding: 6px 8px;
}

.search-box input::placeholder {
  color: #9aa8a2;
}

.search-box button {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: none;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 13px;
  transition: var(--transition);
}

.search-box button:hover {
  background: var(--primary-dark);
}

.search-box button:focus {
  outline: 3px solid rgba(45, 155, 92, 0.4);
}

/* ===== Buttons ===== */
.btn {
  border-radius: 999px;
  font-weight: 600;
  padding: 10px 22px;
  border: none;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn:focus, .btn:focus-visible {
  box-shadow: 0 0 0 4px rgba(45, 155, 92, 0.25);
  outline: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #2dbd68);
  color: #fff;
  box-shadow: 0 6px 18px rgba(45, 155, 92, 0.3);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(45, 155, 92, 0.4);
}

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

.btn-outline {
  background: transparent;
  border: 2px solid rgba(255, 255, 255, 0.6);
  color: #fff;
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: #fff;
  color: #fff;
}

.btn-accent {
  background: linear-gradient(135deg, var(--accent), #ffbb45);
  color: #1f2933;
  box-shadow: 0 6px 18px rgba(245, 166, 35, 0.3);
}

.btn-accent:hover {
  color: #1f2933;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(245, 166, 35, 0.42);
}

.btn-sm {
  padding: 8px 18px;
  font-size: 14px;
}

.btn-lg {
  padding: 14px 38px;
  font-size: 16px;
}

/* ===== Article Banner ===== */
.article-banner {
  position: relative;
  padding: 92px 0 96px;
  background: linear-gradient(120deg, rgba(14, 40, 24, 0.92) 0%, rgba(30, 92, 55, 0.82) 50%, rgba(45, 155, 92, 0.68) 100%), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color: #fff;
  border-bottom: 4px solid var(--accent);
}

.article-banner .breadcrumb-wrap {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.72);
  margin-bottom: 22px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}

.article-banner .breadcrumb-wrap a {
  color: rgba(255, 255, 255, 0.85);
}

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

.article-banner .breadcrumb-wrap i {
  font-size: 12px;
}

.article-banner .badge-category {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent);
  color: #1f2933;
  font-weight: 700;
  font-size: 14px;
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 16px;
}

.article-banner h1 {
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1.3;
  max-width: 860px;
  margin-bottom: 18px;
  letter-spacing: 0.01em;
}

.article-banner .banner-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px 28px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.8);
}

.article-banner .banner-meta i {
  margin-right: 6px;
  color: var(--accent);
}

/* ===== Article Main ===== */
.article-main {
  padding: 68px 0 80px;
}

.article-body {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 44px 46px;
  box-shadow: var(--shadow);
}

.article-body > *:first-child {
  margin-top: 0;
}

.article-body h2 {
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--dark);
  margin-top: 36px;
  margin-bottom: 18px;
  padding-left: 14px;
  border-left: 4px solid var(--primary);
  border-radius: 2px;
}

.article-body h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--dark);
  margin-top: 28px;
  margin-bottom: 14px;
}

.article-body p {
  margin-bottom: 18px;
  color: #34423c;
  font-size: 16px;
}

.article-body ul, .article-body ol {
  margin-bottom: 20px;
  padding-left: 24px;
}

.article-body li {
  margin-bottom: 8px;
  color: #34423c;
}

.article-body a {
  color: var(--primary-dark);
  font-weight: 600;
  border-bottom: 1px solid transparent;
}

.article-body a:hover {
  border-color: var(--primary);
}

.article-body blockquote {
  background: var(--primary-light);
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 18px 22px;
  margin: 24px 0;
  color: var(--dark-soft);
  font-style: normal;
}

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

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
}

.article-body table th,
.article-body table td {
  border: 1px solid var(--border);
  padding: 12px 16px;
  text-align: left;
}

.article-body table th {
  background: var(--primary-light);
  font-weight: 700;
}

/* Sidebar */
.article-sidebar {
  position: sticky;
  top: calc(var(--header-height) + 24px);
}

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

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

.sidebar-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.sidebar-card h3 i {
  color: var(--primary);
  font-size: 20px;
}

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

.sidebar-link-list li {
  border-bottom: 1px dashed var(--border);
  padding: 10px 0;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
}

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

.sidebar-link-list li::before {
  content: "\f061";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  font-size: 12px;
  color: var(--primary);
}

.sidebar-link-list a:hover {
  color: var(--primary);
}

.entry-point {
  background: linear-gradient(135deg, var(--primary), #2dbd68);
  border-radius: var(--radius);
  padding: 26px;
  color: #fff;
  text-align: center;
}

.entry-point h3 {
  font-size: 20px;
  font-weight: 800;
  margin-bottom: 10px;
}

.entry-point p {
  font-size: 14px;
  opacity: 0.85;
  margin-bottom: 18px;
}

.entry-point .btn {
  background: #fff;
  color: var(--primary-dark);
  font-weight: 700;
}

.entry-point .btn:hover {
  background: var(--accent-light);
  color: var(--primary-dark);
}

/* Not Found */
.not-found {
  text-align: center;
  padding: 60px 30px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.not-found-icon {
  font-size: 56px;
  color: var(--accent);
  display: block;
  margin-bottom: 18px;
}

.not-found h2 {
  font-size: 28px;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 10px;
}

.not-found p {
  color: var(--text-light);
  margin-bottom: 24px;
}

/* ===== Related Section ===== */
.related-section {
  padding: 80px 0;
  background: #fff;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 48px;
}

.section-tag {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary-dark);
  font-size: 13px;
  font-weight: 700;
  padding: 6px 18px;
  border-radius: 999px;
  margin-bottom: 14px;
  letter-spacing: 0.03em;
}

.section-head h2 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 12px;
}

.section-head p {
  color: var(--text-light);
  font-size: 16px;
}

.related-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  height: 100%;
}

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

.related-card .card-img {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
}

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

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

.related-card .card-img .img-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(14, 40, 24, 0.55));
}

.related-card .card-body {
  padding: 26px;
}

.related-card .card-body .card-tag {
  display: inline-block;
  background: var(--accent-light);
  color: var(--accent-dark);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 999px;
  margin-bottom: 12px;
}

.related-card .card-body h3 {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 10px;
  color: var(--text);
}

.related-card .card-body p {
  font-size: 14px;
  color: var(--text-light);
  margin-bottom: 16px;
}

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

.related-card .card-footer .go-link {
  color: var(--primary);
  font-weight: 600;
  transition: var(--transition);
}

.related-card .card-footer .go-link:hover {
  gap: 6px;
  letter-spacing: 0.02em;
}

/* ===== Guide Section ===== */
.guide-section {
  padding: 80px 0;
  background: linear-gradient(135deg, #f6faf7 0%, #ecf6ef 100%);
}

.guide-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 42px;
}

.step-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 34px 28px;
  text-align: center;
  position: relative;
  transition: var(--transition);
}

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

.step-num {
  width: 56px;
  height: 56px;
  border-radius: 18px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 22px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  position: relative;
}

.step-card:nth-child(2) .step-num {
  background: var(--accent-light);
  color: var(--accent-dark);
}

.step-card:nth-child(3) .step-num {
  background: #e6f1fe;
  color: #2d6ea8;
}

.step-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--dark);
}

.step-card p {
  font-size: 14px;
  color: var(--text-light);
  margin-bottom: 0;
}

.guide-tip {
  background: #fff;
  border: 1px solid var(--border);
  border-left: 5px solid var(--accent);
  border-radius: var(--radius-sm);
  padding: 22px 28px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  max-width: 860px;
  margin: 0 auto;
  box-shadow: var(--shadow);
}

.guide-tip i {
  color: var(--accent);
  font-size: 22px;
  margin-top: 4px;
}

.guide-tip p {
  font-size: 15px;
  color: #4a5b52;
  margin: 0;
}

/* ===== FAQ Section ===== */
.faq-section {
  padding: 80px 0;
  background: #fff;
}

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

.faq-wrap .accordion-item {
  border: 1px solid var(--border);
  border-radius: var(--radius) !important;
  margin-bottom: 16px;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(21, 43, 30, 0.04);
  transition: var(--transition);
}

.faq-wrap .accordion-item:hover {
  border-color: rgba(45, 155, 92, 0.4);
  box-shadow: 0 4px 18px rgba(21, 43, 30, 0.08);
}

.faq-wrap .accordion-button {
  font-size: 16px;
  font-weight: 700;
  color: var(--dark);
  background: #fff;
  padding: 20px 24px;
  border: none;
  box-shadow: none;
}

.faq-wrap .accordion-button:focus {
  box-shadow: none;
  border-color: var(--primary);
}

.faq-wrap .accordion-button:not(.collapsed) {
  background: var(--primary-light);
  color: var(--primary-dark);
}

.faq-wrap .accordion-button::after {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%232d9b5c' viewBox='0 0 16 16'%3E%3Cpath d='M8 2a1 1 0 0 1 1 1v4h4a1 1 0 1 1 0 2H9v4a1 1 0 1 1-2 0V9H3a1 1 0 1 1 0-2h4V3a1 1 0 0 1 1-1z'/%3E%3C/svg%3E");
  background-size: 14px;
}

.faq-wrap .accordion-body {
  font-size: 15px;
  color: var(--text-light);
  padding: 6px 24px 24px;
  line-height: 1.8;
}

/* ===== CTA Section ===== */
.cta-section {
  padding: 0 0 80px;
  background: #fff;
}

.cta-box {
  position: relative;
  border-radius: var(--radius-lg);
  padding: 64px 48px;
  background: linear-gradient(120deg, rgba(14, 40, 24, 0.92) 0%, rgba(30, 92, 55, 0.85) 50%, rgba(45, 155, 92, 0.75) 100%), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color: #fff;
  text-align: center;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.cta-box h2 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 14px;
}

.cta-box p {
  font-size: 16px;
  opacity: 0.85;
  max-width: 560px;
  margin: 0 auto 28px;
}

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

.cta-note {
  margin-top: 22px;
  font-size: 13px;
  opacity: 0.7;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--dark);
  color: rgba(255, 255, 255, 0.75);
  padding: 64px 0 0;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.4fr;
  gap: 40px;
  padding-bottom: 46px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand h3 {
  color: #fff;
  font-size: 20px;
  font-weight: 800;
  margin-bottom: 14px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.65);
  max-width: 300px;
}

.footer-nav h4,
.footer-info h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 18px;
}

.footer-nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

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

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

.footer-nav ul li a:hover {
  color: #4ae17f;
  padding-left: 4px;
}

.footer-info p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 10px;
  line-height: 1.7;
}

.footer-bottom {
  padding: 24px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .article-banner {
    padding: 70px 0 74px;
  }

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

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

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

@media (max-width: 991.98px) {
  .main-nav {
    flex-wrap: wrap;
    padding: 10px 0;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-links {
    display: none;
    width: 100%;
    flex-direction: column;
    gap: 6px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px;
    margin-top: 8px;
  }

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

  .nav-links .nav-link {
    width: 100%;
    text-align: center;
    padding: 12px;
  }

  .nav-actions {
    margin-left: auto;
  }

  .search-box input {
    width: 140px;
  }

  .article-body {
    padding: 30px 28px;
  }

  .article-sidebar {
    position: static;
    margin-top: 32px;
  }

  .cta-box {
    padding: 46px 28px;
  }
}

@media (max-width: 768px) {
  .article-banner {
    padding: 52px 0 58px;
  }

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

  .banner-meta {
    gap: 10px 18px;
  }

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

  .cta-box h2 {
    font-size: 1.6rem;
  }

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

  .related-card .card-body {
    padding: 20px;
  }
}

@media (max-width: 576px) {
  .main-nav {
    gap: 12px;
  }

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

  .brand-icon {
    width: 38px;
    height: 38px;
    font-size: 17px;
  }

  .nav-actions {
    width: 100%;
    justify-content: space-between;
    order: 3;
    margin-top: 4px;
  }

  .search-box {
    flex: 1;
  }

  .search-box input {
    width: 100%;
  }

  .article-banner {
    padding: 42px 0 48px;
  }

  .article-banner h1 {
    font-size: 1.4rem;
  }

  .article-main {
    padding: 42px 0 50px;
  }

  .article-body {
    padding: 24px 20px;
    border-radius: var(--radius);
  }

  .article-body h2 {
    font-size: 1.35rem;
  }

  .article-body p {
    font-size: 15px;
  }

  .sidebar-card {
    padding: 22px;
  }

  .related-section {
    padding: 52px 0;
  }

  .guide-section {
    padding: 52px 0;
  }

  .faq-section {
    padding: 52px 0;
  }

  .cta-section {
    padding-bottom: 52px;
  }

  .cta-box {
    padding: 40px 22px;
    border-radius: var(--radius);
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer-bottom {
    padding: 18px 0;
  }
}